Mungall K

References (28)

Title : Pseudogene accumulation in the evolutionary histories of Salmonella enterica serovars Paratyphi A and Typhi - Holt_2009_BMC.Genomics_10_36
Author(s) : Holt KE , Thomson NR , Wain J , Langridge GC , Hasan R , Bhutta ZA , Quail MA , Norbertczak H , Walker D , Simmonds M , White B , Bason N , Mungall K , Dougan G , Parkhill J
Ref : BMC Genomics , 10 :36 , 2009
Abstract : BACKGROUND: Of the > 2000 serovars of Salmonella enterica subspecies I, most cause self-limiting gastrointestinal disease in a wide range of mammalian hosts. However, S. enterica serovars Typhi and Paratyphi A are restricted to the human host and cause the similar systemic diseases typhoid and paratyphoid fever. Genome sequence similarity between Paratyphi A and Typhi has been attributed to convergent evolution via relatively recent recombination of a quarter of their genomes. The accumulation of pseudogenes is a key feature of these and other host-adapted pathogens, and overlapping pseudogene complements are evident in Paratyphi A and Typhi.
RESULTS: We report the 4.5 Mbp genome of a clinical isolate of Paratyphi A, strain AKU_12601, completely sequenced using capillary techniques and subsequently checked using Illumina/Solexa resequencing. Comparison with the published genome of Paratyphi A ATCC9150 revealed the two are collinear and highly similar, with 188 single nucleotide polymorphisms and 39 insertions/deletions. A comparative analysis of pseudogene complements of these and two finished Typhi genomes (CT18, Ty2) identified several pseudogenes that had been overlooked in prior genome annotations of one or both serovars, and identified 66 pseudogenes shared between serovars. By determining whether each shared and serovar-specific pseudogene had been recombined between Paratyphi A and Typhi, we found evidence that most pseudogenes have accumulated after the recombination between serovars. We also divided pseudogenes into relative-time groups: ancestral pseudogenes inherited from a common ancestor, pseudogenes recombined between serovars which likely arose between initial divergence and later recombination, serovar-specific pseudogenes arising after recombination but prior to the last evolutionary bottlenecks in each population, and more recent strain-specific pseudogenes. CONCLUSION: Recombination and pseudogene-formation have been important mechanisms of genetic convergence between Paratyphi A and Typhi, with most pseudogenes arising independently after extensive recombination between the serovars. The recombination events, along with divergence of and within each serovar, provide a relative time scale for pseudogene-forming mutations, affording rare insights into the progression of functional gene loss associated with host adaptation in Salmonella.
ESTHER : Holt_2009_BMC.Genomics_10_36
PubMedSearch : Holt_2009_BMC.Genomics_10_36
PubMedID: 19159446

Title : The genome of Burkholderia cenocepacia J2315, an epidemic pathogen of cystic fibrosis patients - Holden_2009_J.Bacteriol_191_261
Author(s) : Holden MT , Seth-Smith HM , Crossman LC , Sebaihia M , Bentley SD , Cerdeno-Tarraga AM , Thomson NR , Bason N , Quail MA , Sharp S , Cherevach I , Churcher C , Goodhead I , Hauser H , Holroyd N , Mungall K , Scott P , Walker D , White B , Rose H , Iversen P , Mil-Homens D , Rocha EP , Fialho AM , Baldwin A , Dowson C , Barrell BG , Govan JR , Vandamme P , Hart CA , Mahenthiralingam E , Parkhill J
Ref : Journal of Bacteriology , 191 :261 , 2009
Abstract : Bacterial infections of the lungs of cystic fibrosis (CF) patients cause major complications in the treatment of this common genetic disease. Burkholderia cenocepacia infection is particularly problematic since this organism has high levels of antibiotic resistance, making it difficult to eradicate; the resulting chronic infections are associated with severe declines in lung function and increased mortality rates. B. cenocepacia strain J2315 was isolated from a CF patient and is a member of the epidemic ET12 lineage that originated in Canada or the United Kingdom and spread to Europe. The 8.06-Mb genome of this highly transmissible pathogen comprises three circular chromosomes and a plasmid and encodes a broad array of functions typical of this metabolically versatile genus, as well as numerous virulence and drug resistance functions. Although B. cenocepacia strains can be isolated from soil and can be pathogenic to both plants and man, J2315 is representative of a lineage of B. cenocepacia rarely isolated from the environment and which spreads between CF patients. Comparative analysis revealed that ca. 21% of the genome is unique in comparison to other strains of B. cenocepacia, highlighting the genomic plasticity of this species. Pseudogenes in virulence determinants suggest that the pathogenic response of J2315 may have been recently selected to promote persistence in the CF lung. The J2315 genome contains evidence that its unique and highly adapted genetic content has played a significant role in its success as an epidemic CF pathogen.
ESTHER : Holden_2009_J.Bacteriol_191_261
PubMedSearch : Holden_2009_J.Bacteriol_191_261
PubMedID: 18931103
Gene_locus related to this paper: burcj-b4e794 , 9burk-a0u8m3 , burcj-b4ek59 , burcj-b4ehl7 , burca-q1bk56 , burce-a0a088tsj6 , burcj-b4ecv6

Title : Genomic evidence for the evolution of Streptococcus equi: host restriction, increased virulence, and genetic exchange with human pathogens - Holden_2009_PLoS.Pathog_5_e1000346
Author(s) : Holden MT , Heather Z , Paillot R , Steward KF , Webb K , Ainslie F , Jourdan T , Bason NC , Holroyd NE , Mungall K , Quail MA , Sanders M , Simmonds M , Willey D , Brooks K , Aanensen DM , Spratt BG , Jolley KA , Maiden MC , Kehoe M , Chanter N , Bentley SD , Robinson C , Maskell DJ , Parkhill J , Waller AS
Ref : PLoS Pathog , 5 :e1000346 , 2009
Abstract : The continued evolution of bacterial pathogens has major implications for both human and animal disease, but the exchange of genetic material between host-restricted pathogens is rarely considered. Streptococcus equi subspecies equi (S. equi) is a host-restricted pathogen of horses that has evolved from the zoonotic pathogen Streptococcus equi subspecies zooepidemicus (S. zooepidemicus). These pathogens share approximately 80% genome sequence identity with the important human pathogen Streptococcus pyogenes. We sequenced and compared the genomes of S. equi 4047 and S. zooepidemicus H70 and screened S. equi and S. zooepidemicus strains from around the world to uncover evidence of the genetic events that have shaped the evolution of the S. equi genome and led to its emergence as a host-restricted pathogen. Our analysis provides evidence of functional loss due to mutation and deletion, coupled with pathogenic specialization through the acquisition of bacteriophage encoding a phospholipase A(2) toxin, and four superantigens, and an integrative conjugative element carrying a novel iron acquisition system with similarity to the high pathogenicity island of Yersinia pestis. We also highlight that S. equi, S. zooepidemicus, and S. pyogenes share a common phage pool that enhances cross-species pathogen evolution. We conclude that the complex interplay of functional loss, pathogenic specialization, and genetic exchange between S. equi, S. zooepidemicus, and S. pyogenes continues to influence the evolution of these important streptococci.
ESTHER : Holden_2009_PLoS.Pathog_5_e1000346
PubMedSearch : Holden_2009_PLoS.Pathog_5_e1000346
PubMedID: 19325880
Gene_locus related to this paper: stre4-c0mbg3 , stre4-pepx , strem-b4u0u4 , strem-b4u3j8 , strs7-pepx

Title : Rapid evolution of virulence and drug resistance in the emerging zoonotic pathogen Streptococcus suis - Holden_2009_PLoS.One_4_e6072
Author(s) : Holden MT , Hauser H , Sanders M , Ngo TH , Cherevach I , Cronin A , Goodhead I , Mungall K , Quail MA , Price C , Rabbinowitsch E , Sharp S , Croucher NJ , Chieu TB , Mai NT , Diep TS , Chinh NT , Kehoe M , Leigh JA , Ward PN , Dowson CG , Whatmore AM , Chanter N , Iversen P , Gottschalk M , Slater JD , Smith HE , Spratt BG , Xu J , Ye C , Bentley S , Barrell BG , Schultsz C , Maskell DJ , Parkhill J
Ref : PLoS ONE , 4 :e6072 , 2009
Abstract : BACKGROUND: Streptococcus suis is a zoonotic pathogen that infects pigs and can occasionally cause serious infections in humans. S. suis infections occur sporadically in human Europe and North America, but a recent major outbreak has been described in China with high levels of mortality. The mechanisms of S. suis pathogenesis in humans and pigs are poorly understood. METHODOLOGY/PRINCIPAL FINDINGS: The sequencing of whole genomes of S. suis isolates provides opportunities to investigate the genetic basis of infection. Here we describe whole genome sequences of three S. suis strains from the same lineage: one from European pigs, and two from human cases from China and Vietnam. Comparative genomic analysis was used to investigate the variability of these strains. S. suis is phylogenetically distinct from other Streptococcus species for which genome sequences are currently available. Accordingly, approximately 40% of the approximately 2 Mb genome is unique in comparison to other Streptococcus species. Finer genomic comparisons within the species showed a high level of sequence conservation; virtually all of the genome is common to the S. suis strains. The only exceptions are three approximately 90 kb regions, present in the two isolates from humans, composed of integrative conjugative elements and transposons. Carried in these regions are coding sequences associated with drug resistance. In addition, small-scale sequence variation has generated pseudogenes in putative virulence and colonization factors. CONCLUSIONS/SIGNIFICANCE: The genomic inventories of genetically related S. suis strains, isolated from distinct hosts and diseases, exhibit high levels of conservation. However, the genomes provide evidence that horizontal gene transfer has contributed to the evolution of drug resistance.
ESTHER : Holden_2009_PLoS.One_4_e6072
PubMedSearch : Holden_2009_PLoS.One_4_e6072
PubMedID: 19603075
Gene_locus related to this paper: strsu-q302y4 , strsy-a4vus4 , strsy-a4vwf6

Title : Comparative genome analysis of Salmonella Enteritidis PT4 and Salmonella Gallinarum 287\/91 provides insights into evolutionary and host adaptation pathways - Thomson_2008_Genome.Res_18_1624
Author(s) : Thomson NR , Clayton DJ , Windhorst D , Vernikos G , Davidson S , Churcher C , Quail MA , Stevens M , Jones MA , Watson M , Barron A , Layton A , Pickard D , Kingsley RA , Bignell A , Clark L , Harris B , Ormond D , Abdellah Z , Brooks K , Cherevach I , Chillingworth T , Woodward J , Norberczak H , Lord A , Arrowsmith C , Jagels K , Moule S , Mungall K , Sanders M , Whitehead S , Chabalgoity JA , Maskell D , Humphrey T , Roberts M , Barrow PA , Dougan G , Parkhill J
Ref : Genome Res , 18 :1624 , 2008
Abstract : We have determined the complete genome sequences of a host-promiscuous Salmonella enterica serovar Enteritidis PT4 isolate P125109 and a chicken-restricted Salmonella enterica serovar Gallinarum isolate 287/91. Genome comparisons between these and other Salmonella isolates indicate that S. Gallinarum 287/91 is a recently evolved descendent of S. Enteritidis. Significantly, the genome of S. Gallinarum has undergone extensive degradation through deletion and pseudogene formation. Comparison of the pseudogenes in S. Gallinarum with those identified previously in other host-adapted bacteria reveals the loss of many common functional traits and provides insights into possible mechanisms of host and tissue adaptation. We propose that experimental analysis in chickens and mice of S. Enteritidis-harboring mutations in functional homologs of the pseudogenes present in S. Gallinarum could provide an experimentally tractable route toward unraveling the genetic basis of host adaptation in S. enterica.
ESTHER : Thomson_2008_Genome.Res_18_1624
PubMedSearch : Thomson_2008_Genome.Res_18_1624
PubMedID: 18583645
Gene_locus related to this paper: salen-OPDB , salti-q8z717 , salty-AES , salty-BIOH , salty-DLHH , salty-ENTF , salty-FES , salty-IROD , salty-IROE , salty-P74847 , salty-PLDB , salty-STM0332 , salty-STM4506 , salty-STY1441 , salty-STY2428 , salty-STY3846 , salty-yafa , salty-YBFF , salty-ycfp , salty-YFBB , salty-YHET , salty-YQIA

Title : The genome of the simian and human malaria parasite Plasmodium knowlesi - Pain_2008_Nature_455_799
Author(s) : Pain A , Bohme U , Berry AE , Mungall K , Finn RD , Jackson AP , Mourier T , Mistry J , Pasini EM , Aslett MA , Balasubrammaniam S , Borgwardt K , Brooks K , Carret C , Carver TJ , Cherevach I , Chillingworth T , Clark TG , Galinski MR , Hall N , Harper D , Harris D , Hauser H , Ivens A , Janssen CS , Keane T , Larke N , Lapp S , Marti M , Moule S , Meyer IM , Ormond D , Peters N , Sanders M , Sanders S , Sargeant TJ , Simmonds M , Smith F , Squares R , Thurston S , Tivey AR , Walker D , White B , Zuiderwijk E , Churcher C , Quail MA , Cowman AF , Turner CM , Rajandream MA , Kocken CH , Thomas AW , Newbold CI , Barrell BG , Berriman M
Ref : Nature , 455 :799 , 2008
Abstract : Plasmodium knowlesi is an intracellular malaria parasite whose natural vertebrate host is Macaca fascicularis (the 'kra' monkey); however, it is now increasingly recognized as a significant cause of human malaria, particularly in southeast Asia. Plasmodium knowlesi was the first malaria parasite species in which antigenic variation was demonstrated, and it has a close phylogenetic relationship to Plasmodium vivax, the second most important species of human malaria parasite (reviewed in ref. 4). Despite their relatedness, there are important phenotypic differences between them, such as host blood cell preference, absence of a dormant liver stage or 'hypnozoite' in P. knowlesi, and length of the asexual cycle (reviewed in ref. 4). Here we present an analysis of the P. knowlesi (H strain, Pk1(A+) clone) nuclear genome sequence. This is the first monkey malaria parasite genome to be described, and it provides an opportunity for comparison with the recently completed P. vivax genome and other sequenced Plasmodium genomes. In contrast to other Plasmodium genomes, putative variant antigen families are dispersed throughout the genome and are associated with intrachromosomal telomere repeats. One of these families, the KIRs, contains sequences that collectively match over one-half of the host CD99 extracellular domain, which may represent an unusual form of molecular mimicry.
ESTHER : Pain_2008_Nature_455_799
PubMedSearch : Pain_2008_Nature_455_799
PubMedID: 18843368
Gene_locus related to this paper: plakh-b3kz42 , plakh-b3kz45 , plakh-b3l0y4 , plakh-b3l1r3 , plakh-b3l8u5 , plakh-b3l336 , plakh-b3l571 , plakh-b3la01 , plakh-b3lb44

Title : Insights from the complete genome sequence of Mycobacterium marinum on the evolution of Mycobacterium tuberculosis - Stinear_2008_Genome.Res_18_729
Author(s) : Stinear TP , Seemann T , Harrison PF , Jenkin GA , Davies JK , Johnson PD , Abdellah Z , Arrowsmith C , Chillingworth T , Churcher C , Clarke K , Cronin A , Davis P , Goodhead I , Holroyd N , Jagels K , Lord A , Moule S , Mungall K , Norbertczak H , Quail MA , Rabbinowitsch E , Walker D , White B , Whitehead S , Small PL , Brosch R , Ramakrishnan L , Fischbach MA , Parkhill J , Cole ST
Ref : Genome Res , 18 :729 , 2008
Abstract : Mycobacterium marinum, a ubiquitous pathogen of fish and amphibia, is a near relative of Mycobacterium tuberculosis, the etiologic agent of tuberculosis in humans. The genome of the M strain of M. marinum comprises a 6,636,827-bp circular chromosome with 5424 CDS, 10 prophages, and a 23-kb mercury-resistance plasmid. Prominent features are the very large number of genes (57) encoding polyketide synthases (PKSs) and nonribosomal peptide synthases (NRPSs) and the most extensive repertoire yet reported of the mycobacteria-restricted PE and PPE proteins, and related-ESX secretion systems. Some of the NRPS genes comprise a novel family and seem to have been acquired horizontally. M. marinum is used widely as a model organism to study M. tuberculosis pathogenesis, and genome comparisons confirmed the close genetic relationship between these two species, as they share 3000 orthologs with an average amino acid identity of 85%. Comparisons with the more distantly related Mycobacterium avium subspecies paratuberculosis and Mycobacterium smegmatis reveal how an ancestral generalist mycobacterium evolved into M. tuberculosis and M. marinum. M. tuberculosis has undergone genome downsizing and extensive lateral gene transfer to become a specialized pathogen of humans and other primates without retaining an environmental niche. M. marinum has maintained a large genome so as to retain the capacity for environmental survival while becoming a broad host range pathogen that produces disease strikingly similar to M. tuberculosis. The work described herein provides a foundation for using M. marinum to better understand the determinants of pathogenesis of tuberculosis.
ESTHER : Stinear_2008_Genome.Res_18_729
PubMedSearch : Stinear_2008_Genome.Res_18_729
PubMedID: 18403782
Gene_locus related to this paper: mycmm-b2hds9 , mycmm-b2hed7 , mycmm-b2hg81 , mycmm-b2hgg2 , mycmm-b2hgg7 , mycmm-b2hhi7 , mycmm-b2hhu3 , mycmm-b2hiu3 , mycmm-b2hiu5 , mycmm-b2hiw7 , mycmm-b2hiy0 , mycmm-b2hj55 , mycmm-b2hjb4 , mycmm-b2hju3 , mycmm-b2hku1 , mycmm-b2hkw0 , mycmm-b2hlr0 , mycmm-b2hlt7 , mycmm-b2hlt8 , mycmm-b2hlt9 , mycmm-b2hlu0 , mycmm-b2hlv0 , mycmm-b2hlv1 , mycmm-b2hlv2 , mycmm-b2hlx2 , mycmm-b2hm55 , mycmm-b2hnr9 , mycmm-b2hnz5 , mycmm-b2hp80 , mycmm-b2hpp0 , mycmm-b2hq96 , mycmm-b2hr10 , mycmm-b2hsm6 , mycmm-b2hsm8 , mycmm-b2hsy0 , mycmm-b2ht06 , mycmm-b2ht20 , mycmm-b2ht49 , mycmm-dhma , mycmm-metx , mycmr-q5sdq4 , myctu-RV1683 , mycmm-b2h1k1 , mycua-a0pku2 , mycua-a0pl47 , mycua-a0plr3 , mycua-a0pm12 , mycua-a0pm14 , mycua-a0pmv0 , mycua-a0pmx9 , mycua-a0pn71 , mycua-a0ppm6 , mycua-a0pqm2 , mycua-a0pqs2 , mycua-a0prq2 , mycua-a0psb1 , mycua-a0psb4 , mycua-a0psi2 , mycua-a0pth6 , mycua-a0ptq0 , mycua-a0pu55 , mycua-a0pum4 , mycua-a0pv11 , mycua-a0pva4 , mycua-a0pwi8 , mycua-a0pwr6 , mycua-a0pwz5 , mycul-a85a , mycmm-b2hcy1 , mycua-a0pvg7 , mycmm-b2hnj4 , mycmm-b2he93 , mycua-a0pwz4 , mycmm-b2hqy3 , mycua-a0pmc3 , mycmm-b2hnn7 , mycmm-b2he68 , mycmm-b2hqm3 , mycmm-tesa

Title : Complete genome sequence of uropathogenic Proteus mirabilis, a master of both adherence and motility - Pearson_2008_J.Bacteriol_190_4027
Author(s) : Pearson MM , Sebaihia M , Churcher C , Quail MA , Seshasayee AS , Luscombe NM , Abdellah Z , Arrosmith C , Atkin B , Chillingworth T , Hauser H , Jagels K , Moule S , Mungall K , Norbertczak H , Rabbinowitsch E , Walker D , Whithead S , Thomson NR , Rather PN , Parkhill J , Mobley HL
Ref : Journal of Bacteriology , 190 :4027 , 2008
Abstract : The gram-negative enteric bacterium Proteus mirabilis is a frequent cause of urinary tract infections in individuals with long-term indwelling catheters or with complicated urinary tracts (e.g., due to spinal cord injury or anatomic abnormality). P. mirabilis bacteriuria may lead to acute pyelonephritis, fever, and bacteremia. Most notoriously, this pathogen uses urease to catalyze the formation of kidney and bladder stones or to encrust or obstruct indwelling urinary catheters. Here we report the complete genome sequence of P. mirabilis HI4320, a representative strain cultured in our laboratory from the urine of a nursing home patient with a long-term (> or =30 days) indwelling urinary catheter. The genome is 4.063 Mb long and has a G+C content of 38.88%. There is a single plasmid consisting of 36,289 nucleotides. Annotation of the genome identified 3,685 coding sequences and seven rRNA loci. Analysis of the sequence confirmed the presence of previously identified virulence determinants, as well as a contiguous 54-kb flagellar regulon and 17 types of fimbriae. Genes encoding a potential type III secretion system were identified on a low-G+C-content genomic island containing 24 intact genes that appear to encode all components necessary to assemble a type III secretion system needle complex. In addition, the P. mirabilis HI4320 genome possesses four tandem copies of the zapE metalloprotease gene, genes encoding six putative autotransporters, an extension of the atf fimbrial operon to six genes, including an mrpJ homolog, and genes encoding at least five iron uptake mechanisms, two potential type IV secretion systems, and 16 two-component regulators.
ESTHER : Pearson_2008_J.Bacteriol_190_4027
PubMedSearch : Pearson_2008_J.Bacteriol_190_4027
PubMedID: 18375554
Gene_locus related to this paper: promh-b4euu8 , promh-b4ev30 , promh-b4evj5 , promh-b4f0a1 , promh-bioh , promi-c2lhp6 , promi-c2lla8 , promi-NRPS , promi-NRPT , promi-k1gzm2 , promh-b4eve8

Title : Complete genome of acute rheumatic fever-associated serotype M5 Streptococcus pyogenes strain manfredo - Holden_2007_J.Bacteriol_189_1473
Author(s) : Holden MT , Scott A , Cherevach I , Chillingworth T , Churcher C , Cronin A , Dowd L , Feltwell T , Hamlin N , Holroyd S , Jagels K , Moule S , Mungall K , Quail MA , Price C , Rabbinowitsch E , Sharp S , Skelton J , Whitehead S , Barrell BG , Kehoe M , Parkhill J
Ref : Journal of Bacteriology , 189 :1473 , 2007
Abstract : Comparisons of the 1.84-Mb genome of serotype M5 Streptococcus pyogenes strain Manfredo with previously sequenced genomes emphasized the role of prophages in diversification of S. pyogenes and the close relationship between strain Manfredo and MGAS8232, another acute rheumatic fever-associated strain.
ESTHER : Holden_2007_J.Bacteriol_189_1473
PubMedSearch : Holden_2007_J.Bacteriol_189_1473
PubMedID: 17012393
Gene_locus related to this paper: strpy-ESTA , strpy-PEPXP , strpy-SPY1308 , strpy-SPYM18.1727

Title : Genome sequence of a proteolytic (Group I) Clostridium botulinum strain Hall A and comparative analysis of the clostridial genomes - Sebaihia_2007_Genome.Res_17_1082
Author(s) : Sebaihia M , Peck MW , Minton NP , Thomson NR , Holden MT , Mitchell WJ , Carter AT , Bentley SD , Mason DR , Crossman L , Paul CJ , Ivens A , Wells-Bennik MH , Davis IJ , Cerdeno-Tarraga AM , Churcher C , Quail MA , Chillingworth T , Feltwell T , Fraser A , Goodhead I , Hance Z , Jagels K , Larke N , Maddison M , Moule S , Mungall K , Norbertczak H , Rabbinowitsch E , Sanders M , Simmonds M , White B , Whithead S , Parkhill J
Ref : Genome Res , 17 :1082 , 2007
Abstract : Clostridium botulinum is a heterogeneous Gram-positive species that comprises four genetically and physiologically distinct groups of bacteria that share the ability to produce botulinum neurotoxin, the most poisonous toxin known to man, and the causative agent of botulism, a severe disease of humans and animals. We report here the complete genome sequence of a representative of Group I (proteolytic) C. botulinum (strain Hall A, ATCC 3502). The genome consists of a chromosome (3,886,916 bp) and a plasmid (16,344 bp), which carry 3650 and 19 predicted genes, respectively. Consistent with the proteolytic phenotype of this strain, the genome harbors a large number of genes encoding secreted proteases and enzymes involved in uptake and metabolism of amino acids. The genome also reveals a hitherto unknown ability of C. botulinum to degrade chitin. There is a significant lack of recently acquired DNA, indicating a stable genomic content, in strong contrast to the fluid genome of Clostridium difficile, which can form longer-term relationships with its host. Overall, the genome indicates that C. botulinum is adapted to a saprophytic lifestyle both in soil and aquatic environments. This pathogen relies on its toxin to rapidly kill a wide range of prey species, and to gain access to nutrient sources, it releases a large number of extracellular enzymes to soften and destroy rotting or decayed tissues.
ESTHER : Sebaihia_2007_Genome.Res_17_1082
PubMedSearch : Sebaihia_2007_Genome.Res_17_1082
PubMedID: 17519437
Gene_locus related to this paper: clobh-A5I3I2 , clobh-A51055 , clob1-a7fqm2 , clob1-a7fv94 , clobl-a7gbn0 , clobh-pip , clobh-a5i3m0

Title : The multidrug-resistant human pathogen Clostridium difficile has a highly mobile, mosaic genome - Sebaihia_2006_Nat.Genet_38_779
Author(s) : Sebaihia M , Wren BW , Mullany P , Fairweather NF , Minton N , Stabler R , Thomson NR , Roberts AP , Cerdeno-Tarraga AM , Wang H , Holden MT , Wright A , Churcher C , Quail MA , Baker S , Bason N , Brooks K , Chillingworth T , Cronin A , Davis P , Dowd L , Fraser A , Feltwell T , Hance Z , Holroyd S , Jagels K , Moule S , Mungall K , Price C , Rabbinowitsch E , Sharp S , Simmonds M , Stevens K , Unwin L , Whithead S , Dupuy B , Dougan G , Barrell B , Parkhill J
Ref : Nat Genet , 38 :779 , 2006
Abstract : We determined the complete genome sequence of Clostridium difficile strain 630, a virulent and multidrug-resistant strain. Our analysis indicates that a large proportion (11%) of the genome consists of mobile genetic elements, mainly in the form of conjugative transposons. These mobile elements are putatively responsible for the acquisition by C. difficile of an extensive array of genes involved in antimicrobial resistance, virulence, host interaction and the production of surface structures. The metabolic capabilities encoded in the genome show multiple adaptations for survival and growth within the gut environment. The extreme genome variability was confirmed by whole-genome microarray analysis; it may reflect the organism's niche in the gut and should provide information on the evolution of virulence in this organism.
ESTHER : Sebaihia_2006_Nat.Genet_38_779
PubMedSearch : Sebaihia_2006_Nat.Genet_38_779
PubMedID: 16804543
Gene_locus related to this paper: pepdi-t4eki5 , clod6-q18a60 , clod6-q183v0 , clodi-HYDD , clodr-c9ynf2 , pepd6-pip , pepdi-g6brr4

Title : The complete genome sequence and comparative genome analysis of the high pathogenicity Yersinia enterocolitica strain 8081 - Thomson_2006_PLoS.Genet_2_e206
Author(s) : Thomson NR , Howard S , Wren BW , Holden MT , Crossman L , Challis GL , Churcher C , Mungall K , Brooks K , Chillingworth T , Feltwell T , Abdellah Z , Hauser H , Jagels K , Maddison M , Moule S , Sanders M , Whitehead S , Quail MA , Dougan G , Parkhill J , Prentice MB
Ref : PLoS Genet , 2 :e206 , 2006
Abstract : The human enteropathogen, Yersinia enterocolitica, is a significant link in the range of Yersinia pathologies extending from mild gastroenteritis to bubonic plague. Comparison at the genomic level is a key step in our understanding of the genetic basis for this pathogenicity spectrum. Here we report the genome of Y. enterocolitica strain 8081 (serotype 0:8; biotype 1B) and extensive microarray data relating to the genetic diversity of the Y. enterocolitica species. Our analysis reveals that the genome of Y. enterocolitica strain 8081 is a patchwork of horizontally acquired genetic loci, including a plasticity zone of 199 kb containing an extraordinarily high density of virulence genes. Microarray analysis has provided insights into species-specific Y. enterocolitica gene functions and the intraspecies differences between the high, low, and nonpathogenic Y. enterocolitica biotypes. Through comparative genome sequence analysis we provide new information on the evolution of the Yersinia. We identify numerous loci that represent ancestral clusters of genes potentially important in enteric survival and pathogenesis, which have been lost or are in the process of being lost, in the other sequenced Yersinia lineages. Our analysis also highlights large metabolic operons in Y. enterocolitica that are absent in the related enteropathogen, Yersinia pseudotuberculosis, indicating major differences in niche and nutrients used within the mammalian gut. These include clusters directing, the production of hydrogenases, tetrathionate respiration, cobalamin synthesis, and propanediol utilisation. Along with ancestral gene clusters, the genome of Y. enterocolitica has revealed species-specific and enteropathogen-specific loci. This has provided important insights into the pathology of this bacterium and, more broadly, into the evolution of the genus. Moreover, wider investigations looking at the patterns of gene loss and gain in the Yersinia have highlighted common themes in the genome evolution of other human enteropathogens.
ESTHER : Thomson_2006_PLoS.Genet_2_e206
PubMedSearch : Thomson_2006_PLoS.Genet_2_e206
PubMedID: 17173484
Gene_locus related to this paper: yere8-a1jik0 , yere8-a1jmx1 , yere8-a1jrp7 , yere8-bioh , yere8-menh , yere8-y3204 , yeren-fes , yeren-YPLA , yeren-YqiA , yermo-c4sfz7 , yerpe-y1616 , yerpe-YPO1501 , yerbe-c4rym7

Title : The genome of Rhizobium leguminosarum has recognizable core and accessory components - Young_2006_Genome.Biol_7_R34
Author(s) : Young JP , Crossman LC , Johnston AW , Thomson NR , Ghazoui ZF , Hull KH , Wexler M , Curson AR , Todd JD , Poole PS , Mauchline TH , East AK , Quail MA , Churcher C , Arrowsmith C , Cherevach I , Chillingworth T , Clarke K , Cronin A , Davis P , Fraser A , Hance Z , Hauser H , Jagels K , Moule S , Mungall K , Norbertczak H , Rabbinowitsch E , Sanders M , Simmonds M , Whitehead S , Parkhill J
Ref : Genome Biol , 7 :R34 , 2006
Abstract : BACKGROUND: Rhizobium leguminosarum is an alpha-proteobacterial N2-fixing symbiont of legumes that has been the subject of more than a thousand publications. Genes for the symbiotic interaction with plants are well studied, but the adaptations that allow survival and growth in the soil environment are poorly understood. We have sequenced the genome of R. leguminosarum biovar viciae strain 3841. RESULTS: The 7.75 Mb genome comprises a circular chromosome and six circular plasmids, with 61% G+C overall. All three rRNA operons and 52 tRNA genes are on the chromosome; essential protein-encoding genes are largely chromosomal, but most functional classes occur on plasmids as well. Of the 7,263 protein-encoding genes, 2,056 had orthologs in each of three related genomes (Agrobacterium tumefaciens, Sinorhizobium meliloti, and Mesorhizobium loti), and these genes were over-represented in the chromosome and had above average G+C. Most supported the rRNA-based phylogeny, confirming A. tumefaciens to be the closest among these relatives, but 347 genes were incompatible with this phylogeny; these were scattered throughout the genome but were over-represented on the plasmids. An unexpectedly large number of genes were shared by all three rhizobia but were missing from A. tumefaciens. CONCLUSION: Overall, the genome can be considered to have two main components: a 'core', which is higher in G+C, is mostly chromosomal, is shared with related organisms, and has a consistent phylogeny; and an 'accessory' component, which is sporadic in distribution, lower in G+C, and located on the plasmids and chromosomal islands. The accessory genome has a different nucleotide composition from the core despite a long history of coexistence.
ESTHER : Young_2006_Genome.Biol_7_R34
PubMedSearch : Young_2006_Genome.Biol_7_R34
PubMedID: 16640791
Gene_locus related to this paper: rhiec-q2k7y0 , rhiec-q2k107 , rhiec-q2kav5 , rhiec-q2ke86 , rhil3-q1m3b7 , rhil3-q1m3u0 , rhil3-q1m4b4 , rhil3-q1m4e5 , rhil3-q1m4g3 , rhil3-q1m4h0 , rhil3-q1m5k0 , rhil3-q1m5s6 , rhil3-q1m6q0 , rhil3-q1m6u8 , rhil3-q1m6w8 , rhil3-q1m7c2 , rhil3-q1m7c3 , rhil3-q1m7i2 , rhil3-q1m7n3 , rhil3-q1m7q9 , rhil3-q1m7r8 , rhil3-q1m8d0 , rhil3-q1m8u4 , rhil3-q1m9d6 , rhil3-q1m9i6 , rhil3-q1m347 , rhil3-q1m571 , rhil3-q1m580 , rhil3-q1m672 , rhil3-q1m812 , rhil3-q1m841 , rhil3-q1m917 , rhil3-q1m919 , rhil3-q1mbv4 , rhil3-q1mbz5 , rhil3-q1mc48 , rhil3-q1mcr4 , rhil3-q1md19 , rhil3-q1mdd8 , rhil3-q1me05 , rhil3-q1mee4 , rhil3-q1mel6 , rhil3-q1men7 , rhil3-q1mf17 , rhil3-q1mf73 , rhil3-q1mf76 , rhil3-q1mfb0 , rhil3-q1mfp5 , rhil3-q1mg17 , rhil3-q1mg51 , rhil3-q1mg97 , rhil3-q1mgh3 , rhil3-q1mgh5 , rhil3-q1mgu7 , rhil3-q1mgx5 , rhil3-q1mh67 , rhil3-q1mhh7 , rhil3-q1mhz8 , rhil3-q1mi67 , rhil3-q1mi98 , rhil3-q1mia3 , rhil3-q1mig2 , rhil3-q1miz0 , rhil3-q1mj26 , rhil3-q1mj65 , rhil3-q1mjs2 , rhil3-q1mjx4 , rhil3-q1mk84 , rhil3-q1mkk8 , rhil3-q1mli7 , rhil3-q1mlj7 , rhil3-q1mm33 , rhil3-q1mmf9 , rhil3-q1mmp7 , rhil3-q1mmx0 , rhil3-q1mn42 , rhile-Q93EA8 , rhils-c6axl5 , rhils-c6b1w7 , rhilw-b5zrm4 , rhilw-b5zs97 , rhilv-j0vcs5

Title : Common inheritance of chromosome Ia associated with clonal expansion of Toxoplasma gondii - Khan_2006_Genome.Res_16_1119
Author(s) : Khan A , Bohme U , Kelly KA , Adlem E , Brooks K , Simmonds M , Mungall K , Quail MA , Arrowsmith C , Chillingworth T , Churcher C , Harris D , Collins M , Fosker N , Fraser A , Hance Z , Jagels K , Moule S , Murphy L , O'Neil S , Rajandream MA , Saunders D , Seeger K , Whitehead S , Mayr T , Xuan X , Watanabe J , Suzuki Y , Wakaguri H , Sugano S , Sugimoto C , Paulsen I , Mackey AJ , Roos DS , Hall N , Berriman M , Barrell B , Sibley LD , Ajioka JW
Ref : Genome Res , 16 :1119 , 2006
Abstract : Toxoplasma gondii is a globally distributed protozoan parasite that can infect virtually all warm-blooded animals and humans. Despite the existence of a sexual phase in the life cycle, T. gondii has an unusual population structure dominated by three clonal lineages that predominate in North America and Europe, (Types I, II, and III). These lineages were founded by common ancestors approximately10,000 yr ago. The recent origin and widespread distribution of the clonal lineages is attributed to the circumvention of the sexual cycle by a new mode of transmission-asexual transmission between intermediate hosts. Asexual transmission appears to be multigenic and although the specific genes mediating this trait are unknown, it is predicted that all members of the clonal lineages should share the same alleles. Genetic mapping studies suggested that chromosome Ia was unusually monomorphic compared with the rest of the genome. To investigate this further, we sequenced chromosome Ia and chromosome Ib in the Type I strain, RH, and the Type II strain, ME49. Comparative genome analyses of the two chromosomal sequences revealed that the same copy of chromosome Ia was inherited in each lineage, whereas chromosome Ib maintained the same high frequency of between-strain polymorphism as the rest of the genome. Sampling of chromosome Ia sequence in seven additional representative strains from the three clonal lineages supports a monomorphic inheritance, which is unique within the genome. Taken together, our observations implicate a specific combination of alleles on chromosome Ia in the recent origin and widespread success of the clonal lineages of T. gondii.
ESTHER : Khan_2006_Genome.Res_16_1119
PubMedSearch : Khan_2006_Genome.Res_16_1119
PubMedID: 16902086
Gene_locus related to this paper: toxgo-q1jt22

Title : The genome of the social amoeba Dictyostelium discoideum - Eichinger_2005_Nature_435_43
Author(s) : Eichinger L , Pachebat JA , Glockner G , Rajandream MA , Sucgang R , Berriman M , Song J , Olsen R , Szafranski K , Xu Q , Tunggal B , Kummerfeld S , Madera M , Konfortov BA , Rivero F , Bankier AT , Lehmann R , Hamlin N , Davies R , Gaudet P , Fey P , Pilcher K , Chen G , Saunders D , Sodergren E , Davis P , Kerhornou A , Nie X , Hall N , Anjard C , Hemphill L , Bason N , Farbrother P , Desany B , Just E , Morio T , Rost R , Churcher C , Cooper J , Haydock S , van Driessche N , Cronin A , Goodhead I , Muzny D , Mourier T , Pain A , Lu M , Harper D , Lindsay R , Hauser H , James K , Quiles M , Madan Babu M , Saito T , Buchrieser C , Wardroper A , Felder M , Thangavelu M , Johnson D , Knights A , Loulseged H , Mungall K , Oliver K , Price C , Quail MA , Urushihara H , Hernandez J , Rabbinowitsch E , Steffen D , Sanders M , Ma J , Kohara Y , Sharp S , Simmonds M , Spiegler S , Tivey A , Sugano S , White B , Walker D , Woodward J , Winckler T , Tanaka Y , Shaulsky G , Schleicher M , Weinstock G , Rosenthal A , Cox EC , Chisholm RL , Gibbs R , Loomis WF , Platzer M , Kay RR , Williams J , Dear PH , Noegel AA , Barrell B , Kuspa A
Ref : Nature , 435 :43 , 2005
Abstract : The social amoebae are exceptional in their ability to alternate between unicellular and multicellular forms. Here we describe the genome of the best-studied member of this group, Dictyostelium discoideum. The gene-dense chromosomes of this organism encode approximately 12,500 predicted proteins, a high proportion of which have long, repetitive amino acid tracts. There are many genes for polyketide synthases and ABC transporters, suggesting an extensive secondary metabolism for producing and exporting small molecules. The genome is rich in complex repeats, one class of which is clustered and may serve as centromeres. Partial copies of the extrachromosomal ribosomal DNA (rDNA) element are found at the ends of each chromosome, suggesting a novel telomere structure and the use of a common mechanism to maintain both the rDNA and chromosomal termini. A proteome-based phylogeny shows that the amoebozoa diverged from the animal-fungal lineage after the plant-animal split, but Dictyostelium seems to have retained more of the diversity of the ancestral genome than have plants, animals or fungi.
ESTHER : Eichinger_2005_Nature_435_43
PubMedSearch : Eichinger_2005_Nature_435_43
PubMedID: 15875012
Gene_locus related to this paper: dicdi-abhd , dicdi-ACHE , dicdi-apra , dicdi-cinbp , dicdi-CMBL , dicdi-crysp , dicdi-DPOA , dicdi-P90528 , dicdi-ppme1 , dicdi-Q8MYE7 , dicdi-q54cf7 , dicdi-q54cl7 , dicdi-q54cm0 , dicdi-q54ct5 , dicdi-q54cu1 , dicdi-q54d54 , dicdi-q54d66 , dicdi-q54dj5 , dicdi-q54dy7 , dicdi-q54ek1 , dicdi-q54eq6 , dicdi-q54et1 , dicdi-q54et7 , dicdi-q54f01 , dicdi-q54g24 , dicdi-q54g47 , dicdi-q54gi7 , dicdi-q54gw5 , dicdi-q54gx3 , dicdi-q54h23 , dicdi-q54h73 , dicdi-q54i38 , dicdi-q54ie5 , dicdi-q54in4 , dicdi-q54kz1 , dicdi-q54l36 , dicdi-q54li1 , dicdi-q54m29 , dicdi-q54n21 , dicdi-q54n35 , dicdi-q54n85 , dicdi-q54qe7 , dicdi-q54qi3 , dicdi-q54qk2 , dicdi-q54rl3 , dicdi-q54rl8 , dicdi-q54sy6 , dicdi-q54sz3 , dicdi-q54t49 , dicdi-q54t91 , dicdi-q54th2 , dicdi-q54u01 , dicdi-q54vc2 , dicdi-q54vw1 , dicdi-q54xe3 , dicdi-q54xl3 , dicdi-q54xu1 , dicdi-q54xu2 , dicdi-q54y48 , dicdi-q54yd0 , dicdi-q54ye0 , dicdi-q54yl1 , dicdi-q54yr8 , dicdi-q54z90 , dicdi-q55bx3 , dicdi-q55d01 , dicdi-q55d81 , dicdi-q55du6 , dicdi-q55eu1 , dicdi-q55eu8 , dicdi-q55fk4 , dicdi-q55gk7 , dicdi-Q54ZA6 , dicdi-q86h82 , dicdi-Q86HC9 , dicdi-Q86HM5 , dicdi-Q86HM6 , dicdi-q86iz7 , dicdi-q86jb6 , dicdi-Q86KU7 , dicdi-q550s3 , dicdi-q552c0 , dicdi-q553t5 , dicdi-q555e5 , dicdi-q555h0 , dicdi-q555h1 , dicdi-q557k5 , dicdi-q558u2 , dicdi-Q869Q8 , dicdi-u554 , dicdi-y9086 , dicdi-q54r44 , dicdi-f172a

Title : The genome of the African trypanosome Trypanosoma brucei - Berriman_2005_Science_309_416
Author(s) : Berriman M , Ghedin E , Hertz-Fowler C , Blandin G , Renauld H , Bartholomeu DC , Lennard NJ , Caler E , Hamlin NE , Haas B , Bohme U , Hannick L , Aslett MA , Shallom J , Marcello L , Hou L , Wickstead B , Alsmark UC , Arrowsmith C , Atkin RJ , Barron AJ , Bringaud F , Brooks K , Carrington M , Cherevach I , Chillingworth TJ , Churcher C , Clark LN , Corton CH , Cronin A , Davies RM , Doggett J , Djikeng A , Feldblyum T , Field MC , Fraser A , Goodhead I , Hance Z , Harper D , Harris BR , Hauser H , Hostetler J , Ivens A , Jagels K , Johnson D , Johnson J , Jones K , Kerhornou AX , Koo H , Larke N , Landfear S , Larkin C , Leech V , Line A , Lord A , MacLeod A , Mooney PJ , Moule S , Martin DM , Morgan GW , Mungall K , Norbertczak H , Ormond D , Pai G , Peacock CS , Peterson J , Quail MA , Rabbinowitsch E , Rajandream MA , Reitter C , Salzberg SL , Sanders M , Schobel S , Sharp S , Simmonds M , Simpson AJ , Tallon L , Turner CM , Tait A , Tivey AR , Van Aken S , Walker D , Wanless D , Wang S , White B , White O , Whitehead S , Woodward J , Wortman J , Adams MD , Embley TM , Gull K , Ullu E , Barry JD , Fairlamb AH , Opperdoes F , Barrell BG , Donelson JE , Hall N , Fraser CM , Melville SE , El-Sayed NM
Ref : Science , 309 :416 , 2005
Abstract : African trypanosomes cause human sleeping sickness and livestock trypanosomiasis in sub-Saharan Africa. We present the sequence and analysis of the 11 megabase-sized chromosomes of Trypanosoma brucei. The 26-megabase genome contains 9068 predicted genes, including approximately 900 pseudogenes and approximately 1700 T. brucei-specific genes. Large subtelomeric arrays contain an archive of 806 variant surface glycoprotein (VSG) genes used by the parasite to evade the mammalian immune system. Most VSG genes are pseudogenes, which may be used to generate expressed mosaic genes by ectopic recombination. Comparisons of the cytoskeleton and endocytic trafficking systems with those of humans and other eukaryotic organisms reveal major differences. A comparison of metabolic pathways encoded by the genomes of T. brucei, T. cruzi, and Leishmania major reveals the least overall metabolic capability in T. brucei and the greatest in L. major. Horizontal transfer of genes of bacterial origin has contributed to some of the metabolic differences in these parasites, and a number of novel potential drug targets have been identified.
ESTHER : Berriman_2005_Science_309_416
PubMedSearch : Berriman_2005_Science_309_416
PubMedID: 16020726
Gene_locus related to this paper: tryb2-q6h9e3 , tryb2-q6ha27 , tryb2-q38cd5 , tryb2-q38cd6 , tryb2-q38cd7 , tryb2-q38dc1 , tryb2-q38de4 , tryb2-q38ds6 , tryb2-q38dx1 , tryb2-q380z6 , tryb2-q382c1 , tryb2-q382l4 , tryb2-q383a9 , tryb2-q386e3 , tryb2-q387r7 , tryb2-q388n1 , tryb2-q389w3 , trybr-PEPTB , trycr-q4cq28 , trycr-q4cq94 , trycr-q4cq95 , trycr-q4cq96 , trycr-q4csm0 , trycr-q4cwv3 , trycr-q4cx66 , trycr-q4cxr6 , trycr-q4cyc5 , trycr-q4cyf6 , trycr-q4d3a2 , trycr-q4d3x3 , trycr-q4d3y4 , trycr-q4d6h1 , trycr-q4d8h8 , trycr-q4d8h9 , trycr-q4d8i0 , trycr-q4d786 , trycr-q4d975 , trycr-q4da08 , trycr-q4dap6 , trycr-q4dbm2 , trycr-q4dbn1 , trycr-q4ddw7 , trycr-q4de42 , trycr-q4dhn8 , trycr-q4dkk8 , trycr-q4dkk9 , trycr-q4dm56 , trycr-q4dqa6 , trycr-q4dt91 , trycr-q4dvp2 , trycr-q4dw34 , trycr-q4dwm3 , trycr-q4dy49 , trycr-q4dy82 , trycr-q4dzp6 , trycr-q4e3m8 , trycr-q4e4t5 , trycr-q4e5d1 , trycr-q4e5z2

Title : Complete genome sequence and lytic phase transcription profile of a Coccolithovirus - Wilson_2005_Science_309_1090
Author(s) : Wilson WH , Schroeder DC , Allen MJ , Holden MT , Parkhill J , Barrell BG , Churcher C , Hamlin N , Mungall K , Norbertczak H , Quail MA , Price C , Rabbinowitsch E , Walker D , Craigon M , Roy D , Ghazal P
Ref : Science , 309 :1090 , 2005
Abstract : The genus Coccolithovirus is a recently discovered group of viruses that infect the globally important marine calcifying microalga Emiliania huxleyi. Among the 472 predicted genes of the 407,339-base pair genome are a variety of unexpected genes, most notably those involved in biosynthesis of ceramide, a sphingolipid known to induce apoptosis. Uniquely for algal viruses, it also contains six RNA polymerase subunits and a novel promoter, suggesting this virus encodes its own transcription machinery. Microarray transcriptomic analysis reveals that 65% of the predicted virus-encoded genes are expressed during lytic infection of E. huxleyi.
ESTHER : Wilson_2005_Science_309_1090
PubMedSearch : Wilson_2005_Science_309_1090
PubMedID: 16099989
Gene_locus related to this paper: 9phyc-q4a2b6 , 9phyc-q4a3c9 , ehv86-q4a332

Title : The Chlamydophila abortus genome sequence reveals an array of variable proteins that contribute to interspecies variation - Thomson_2005_Genome.Res_15_629
Author(s) : Thomson NR , Yeats C , Bell K , Holden MT , Bentley SD , Livingstone M , Cerdeno-Tarraga AM , Harris B , Doggett J , Ormond D , Mungall K , Clarke K , Feltwell T , Hance Z , Sanders M , Quail MA , Price C , Barrell BG , Parkhill J , Longbottom D
Ref : Genome Res , 15 :629 , 2005
Abstract : The obligate intracellular bacterial pathogen Chlamydophila abortus strain S26/3 (formerly the abortion subtype of Chlamydia psittaci) is an important cause of late gestation abortions in ruminants and pigs. Furthermore, although relatively rare, zoonotic infection can result in acute illness and miscarriage in pregnant women. The complete genome sequence was determined and shows a high level of conservation in both sequence and overall gene content in comparison to other Chlamydiaceae. The 1,144,377-bp genome contains 961 predicted coding sequences, 842 of which are conserved with those of Chlamydophila caviae and Chlamydophila pneumoniae. Within this conserved Cp. abortus core genome we have identified the major regions of variation and have focused our analysis on these loci, several of which were found to encode highly variable protein families, such as TMH/Inc and Pmp families, which are strong candidates for the source of diversity in host tropism and disease causation in this group of organisms. Significantly, Cp. abortus lacks any toxin genes, and also lacks genes involved in tryptophan metabolism and nucleotide salvaging (guaB is present as a pseudogene), suggesting that the genetic basis of niche adaptation of this species is distinct from those previously proposed for other chlamydial species.
ESTHER : Thomson_2005_Genome.Res_15_629
PubMedSearch : Thomson_2005_Genome.Res_15_629
PubMedID: 15837807
Gene_locus related to this paper: chlab-q5l5y2 , chlab-q5l6t6

Title : The genome of the protist parasite Entamoeba histolytica - Loftus_2005_Nature_433_865
Author(s) : Loftus B , Anderson I , Davies R , Alsmark UC , Samuelson J , Amedeo P , Roncaglia P , Berriman M , Hirt RP , Mann BJ , Nozaki T , Suh B , Pop M , Duchene M , Ackers J , Tannich E , Leippe M , Hofer M , Bruchhaus I , Willhoeft U , Bhattacharya A , Chillingworth T , Churcher C , Hance Z , Harris B , Harris D , Jagels K , Moule S , Mungall K , Ormond D , Squares R , Whitehead S , Quail MA , Rabbinowitsch E , Norbertczak H , Price C , Wang Z , Guillen N , Gilchrist C , Stroup SE , Bhattacharya S , Lohia A , Foster PG , Sicheritz-Ponten T , Weber C , Singh U , Mukherjee C , El-Sayed NM , Petri WA, Jr. , Clark CG , Embley TM , Barrell B , Fraser CM , Hall N
Ref : Nature , 433 :865 , 2005
Abstract : Entamoeba histolytica is an intestinal parasite and the causative agent of amoebiasis, which is a significant source of morbidity and mortality in developing countries. Here we present the genome of E. histolytica, which reveals a variety of metabolic adaptations shared with two other amitochondrial protist pathogens: Giardia lamblia and Trichomonas vaginalis. These adaptations include reduction or elimination of most mitochondrial metabolic pathways and the use of oxidative stress enzymes generally associated with anaerobic prokaryotes. Phylogenomic analysis identifies evidence for lateral gene transfer of bacterial genes into the E. histolytica genome, the effects of which centre on expanding aspects of E. histolytica's metabolic repertoire. The presence of these genes and the potential for novel metabolic pathways in E. histolytica may allow for the development of new chemotherapeutic agents. The genome encodes a large number of novel receptor kinases and contains expansions of a variety of gene families, including those associated with virulence. Additional genome features include an abundance of tandemly repeated transfer-RNA-containing arrays, which may have a structural function in the genome. Analysis of the genome provides new insights into the workings and genome evolution of a major human pathogen.
ESTHER : Loftus_2005_Nature_433_865
PubMedSearch : Loftus_2005_Nature_433_865
PubMedID: 15729342
Gene_locus related to this paper: entds-b0efg6 , entds-b0egj2 , enthi-b1n4x1 , enthi-b1n449 , enthi-b1n456 , enthi-c4lsp4 , enthi-c4lte6 , enthi-c4lu03 , enthi-c4lu54 , enthi-c4lve4 , enthi-c4lwe1 , enthi-c4m0c3 , enthi-c4m0e4 , enthi-c4m1e7 , enthi-c4m2a9 , enthi-c4m2i4 , enthi-c4m3r1 , enthi-c4m4l3 , enthi-c4m6g0 , enthi-c4m6k3 , enthi-c4m7k7 , enthi-c4m7n4 , enthi-c4m7v0 , enthi-c4m8y5 , enthi-c4m793 , enthi-c4mb48 , enthi-DPP , enthi-q50rh1 , enthi-q50ya6 , enthi-q51a37 , enthi-q51aw6 , enthi-q51ch3 , enthi-q51cz6 , enthi-q51ds3 , enthi-q513q8 , enthi-q513w3 , enthi-q519v1

Title : Genome sequence of the enterobacterial phytopathogen Erwinia carotovora subsp. atroseptica and characterization of virulence factors - Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
Author(s) : Bell KS , Sebaihia M , Pritchard L , Holden MT , Hyman LJ , Holeva MC , Thomson NR , Bentley SD , Churcher LJ , Mungall K , Atkin R , Bason N , Brooks K , Chillingworth T , Clark K , Doggett J , Fraser A , Hance Z , Hauser H , Jagels K , Moule S , Norbertczak H , Ormond D , Price C , Quail MA , Sanders M , Walker D , Whitehead S , Salmond GP , Birch PR , Parkhill J , Toth IK
Ref : Proc Natl Acad Sci U S A , 101 :11105 , 2004
Abstract : The bacterial family Enterobacteriaceae is notable for its well studied human pathogens, including Salmonella, Yersinia, Shigella, and Escherichia spp. However, it also contains several plant pathogens. We report the genome sequence of a plant pathogenic enterobacterium, Erwinia carotovora subsp. atroseptica (Eca) strain SCRI1043, the causative agent of soft rot and blackleg potato diseases. Approximately 33% of Eca genes are not shared with sequenced enterobacterial human pathogens, including some predicted to facilitate unexpected metabolic traits, such as nitrogen fixation and opine catabolism. This proportion of genes also contains an overrepresentation of pathogenicity determinants, including possible horizontally acquired gene clusters for putative type IV secretion and polyketide phytotoxin synthesis. To investigate whether these gene clusters play a role in the disease process, an arrayed set of insertional mutants was generated, and mutations were identified. Plant bioassays showed that these mutants were significantly reduced in virulence, demonstrating both the presence of novel pathogenicity determinants in Eca, and the impact of functional genomics in expanding our understanding of phytopathogenicity in the Enterobacteriaceae.
ESTHER : Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
PubMedSearch : Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
PubMedID: 15263089
Gene_locus related to this paper: erwct-q6czi2 , erwct-q6czl9 , erwct-q6czu1 , erwct-q6d0l3 , erwct-q6d1e3 , erwct-q6d1l9 , erwct-q6d2k4 , erwct-q6d2x2 , erwct-q6d3m9 , erwct-q6d4b7 , erwct-q6d6t8 , erwct-q6d7j1 , erwct-q6d7p5 , erwct-q6d7w3 , erwct-q6d8k2 , erwct-q6d8q7 , erwct-q6d9l2 , erwct-q6d041 , erwct-q6d134 , erwct-q6d207 , erwct-q6d508 , erwct-q6d615 , erwct-q6d673 , erwct-q6d739.1 , erwct-q6d739.2 , erwct-q6d884 , erwct-q6da42 , erwct-q6da66 , erwct-q6dac1 , erwct-q6dar9 , erwct-Y3465

Title : Genomic plasticity of the causative agent of melioidosis, Burkholderia pseudomallei - Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
Author(s) : Holden MT , Titball RW , Peacock SJ , Cerdeno-Tarraga AM , Atkins T , Crossman LC , Pitt T , Churcher C , Mungall K , Bentley SD , Sebaihia M , Thomson NR , Bason N , Beacham IR , Brooks K , Brown KA , Brown NF , Challis GL , Cherevach I , Chillingworth T , Cronin A , Crossett B , Davis P , DeShazer D , Feltwell T , Fraser A , Hance Z , Hauser H , Holroyd S , Jagels K , Keith KE , Maddison M , Moule S , Price C , Quail MA , Rabbinowitsch E , Rutherford K , Sanders M , Simmonds M , Songsivilai S , Stevens K , Tumapa S , Vesaratchavest M , Whitehead S , Yeats C , Barrell BG , Oyston PC , Parkhill J
Ref : Proc Natl Acad Sci U S A , 101 :14240 , 2004
Abstract : Burkholderia pseudomallei is a recognized biothreat agent and the causative agent of melioidosis. This Gram-negative bacterium exists as a soil saprophyte in melioidosis-endemic areas of the world and accounts for 20% of community-acquired septicaemias in northeastern Thailand where half of those affected die. Here we report the complete genome of B. pseudomallei, which is composed of two chromosomes of 4.07 megabase pairs and 3.17 megabase pairs, showing significant functional partitioning of genes between them. The large chromosome encodes many of the core functions associated with central metabolism and cell growth, whereas the small chromosome carries more accessory functions associated with adaptation and survival in different niches. Genomic comparisons with closely and more distantly related bacteria revealed a greater level of gene order conservation and a greater number of orthologous genes on the large chromosome, suggesting that the two replicons have distinct evolutionary origins. A striking feature of the genome was the presence of 16 genomic islands (GIs) that together made up 6.1% of the genome. Further analysis revealed these islands to be variably present in a collection of invasive and soil isolates but entirely absent from the clonally related organism B. mallei. We propose that variable horizontal gene acquisition by B. pseudomallei is an important feature of recent genetic evolution and that this has resulted in a genetically diverse pathogenic species.
ESTHER : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
PubMedSearch : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
PubMedID: 15377794
Gene_locus related to this paper: burma-a5j5w8 , burma-a5tj72 , burma-a5tq93 , burma-metx , burma-q62a61 , burma-q62ar2.1 , burma-q62ar2.2 , burma-q62ax8 , burma-q62b60 , burma-q62b79 , burma-q62bh9 , burma-q62bl4 , burma-q62bl7 , burma-q62c00 , burma-q62cg5 , burma-q62d41 , burma-q62d56 , burma-q62d83 , burma-q62dg2 , burma-q62du7 , burma-q62e67 , burma-q62eb8 , burma-q62ed8 , burma-q62f28 , burma-q62fx7 , burma-q62g26 , burma-q62gx9 , burma-q62gy2 , burma-q62hq2 , burma-q62i62 , burma-q62ib8 , burma-q62ie8 , burma-q62j07 , burma-q62j15 , burma-q62jn5 , burma-q62jy7 , burma-q62kb7 , burma-q62kg0 , burma-q62kh9 , burma-q62lp7 , burma-q62m40 , burma-q62mc3 , burma-q62mf4 , burma-q62mq7 , burma-q629m1 , burma-q629p4 , burma-q629u0 , burp1-q3jvq2 , burps-a4lm41 , burps-q3v7s4 , burps-q63hx2 , burps-q63i95 , burps-q63im5 , burps-q63is4 , burps-q63ja6 , burps-q63ja9 , burps-q63jh5 , burps-q63l17 , burps-q63l41 , burps-q63l44 , burps-q63lt9 , burps-q63me1 , burps-q63mj7 , burps-q63mj8 , burps-q63mn8 , burps-q63mr2 , burps-q63n52 , burps-q63p18 , burps-q63p99 , burps-q63ug2 , burps-q63ug5 , burps-q63xf9 , burps-q63y36 , burps-q63y45 , burps-q63y52 , burps-q63y59 , burta-q2t474 , burps-hboh

Title : Complete genomes of two clinical Staphylococcus aureus strains: evidence for the rapid evolution of virulence and drug resistance - Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_9786
Author(s) : Holden MT , Feil EJ , Lindsay JA , Peacock SJ , Day NP , Enright MC , Foster TJ , Moore CE , Hurst L , Atkin R , Barron A , Bason N , Bentley SD , Chillingworth C , Chillingworth T , Churcher C , Clark L , Corton C , Cronin A , Doggett J , Dowd L , Feltwell T , Hance Z , Harris B , Hauser H , Holroyd S , Jagels K , James KD , Lennard N , Line A , Mayes R , Moule S , Mungall K , Ormond D , Quail MA , Rabbinowitsch E , Rutherford K , Sanders M , Sharp S , Simmonds M , Stevens K , Whitehead S , Barrell BG , Spratt BG , Parkhill J
Ref : Proc Natl Acad Sci U S A , 101 :9786 , 2004
Abstract : Staphylococcus aureus is an important nosocomial and community-acquired pathogen. Its genetic plasticity has facilitated the evolution of many virulent and drug-resistant strains, presenting a major and constantly changing clinical challenge. We sequenced the approximately 2.8-Mbp genomes of two disease-causing S. aureus strains isolated from distinct clinical settings: a recent hospital-acquired representative of the epidemic methicillin-resistant S. aureus EMRSA-16 clone (MRSA252), a clinically important and globally prevalent lineage; and a representative of an invasive community-acquired methicillin-susceptible S. aureus clone (MSSA476). A comparative-genomics approach was used to explore the mechanisms of evolution of clinically important S. aureus genomes and to identify regions affecting virulence and drug resistance. The genome sequences of MRSA252 and MSSA476 have a well conserved core region but differ markedly in their accessory genetic elements. MRSA252 is the most genetically diverse S. aureus strain sequenced to date: approximately 6% of the genome is novel compared with other published genomes, and it contains several unique genetic elements. MSSA476 is methicillin-susceptible, but it contains a novel Staphylococcal chromosomal cassette (SCC) mec-like element (designated SCC(476)), which is integrated at the same site on the chromosome as SCCmec elements in MRSA strains but encodes a putative fusidic acid resistance protein. The crucial role that accessory elements play in the rapid evolution of S. aureus is clearly illustrated by comparing the MSSA476 genome with that of an extremely closely related MRSA community-acquired strain; the differential distribution of large mobile elements carrying virulence and drug-resistance determinants may be responsible for the clinically important phenotypic differences in these strains.
ESTHER : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_9786
PubMedSearch : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_9786
PubMedID: 15213324
Gene_locus related to this paper: staau-d2feb3 , staau-d2uin3 , staau-LIP , staau-lipas , staau-MW0741 , staau-MW2456 , staau-q6gfm6 , staau-SA0011 , staau-SA0569 , staau-SA0572 , staau-SA0897 , staau-SA1143 , staau-SA2240 , staau-SA2306 , staau-SA2367 , staau-SA2422 , staau-SAV0321 , staau-SAV0446 , staau-SAV0457 , staau-SAV0655 , staau-SAV1014 , staau-SAV1765 , staau-SAV1793 , staau-SAV2188 , staau-SAV2350 , staau-SAV2594

Title : Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13 - Hall_2002_Nature_419_527
Author(s) : Hall N , Pain A , Berriman M , Churcher C , Harris B , Harris D , Mungall K , Bowman S , Atkin R , Baker S , Barron A , Brooks K , Buckee CO , Burrows C , Cherevach I , Chillingworth C , Chillingworth T , Christodoulou Z , Clark L , Clark R , Corton C , Cronin A , Davies R , Davis P , Dear P , Dearden F , Doggett J , Feltwell T , Goble A , Goodhead I , Gwilliam R , Hamlin N , Hance Z , Harper D , Hauser H , Hornsby T , Holroyd S , Horrocks P , Humphray S , Jagels K , James KD , Johnson D , Kerhornou A , Knights A , Konfortov B , Kyes S , Larke N , Lawson D , Lennard N , Line A , Maddison M , McLean J , Mooney P , Moule S , Murphy L , Oliver K , Ormond D , Price C , Quail MA , Rabbinowitsch E , Rajandream MA , Rutter S , Rutherford KM , Sanders M , Simmonds M , Seeger K , Sharp S , Smith R , Squares R , Squares S , Stevens K , Taylor K , Tivey A , Unwin L , Whitehead S , Woodward J , Sulston JE , Craig A , Newbold C , Barrell BG
Ref : Nature , 419 :527 , 2002
Abstract : Since the sequencing of the first two chromosomes of the malaria parasite, Plasmodium falciparum, there has been a concerted effort to sequence and assemble the entire genome of this organism. Here we report the sequence of chromosomes 1, 3-9 and 13 of P. falciparum clone 3D7--these chromosomes account for approximately 55% of the total genome. We describe the methods used to map, sequence and annotate these chromosomes. By comparing our assemblies with the optical map, we indicate the completeness of the resulting sequence. During annotation, we assign Gene Ontology terms to the predicted gene products, and observe clustering of some malaria-specific terms to specific chromosomes. We identify a highly conserved sequence element found in the intergenic region of internal var genes that is not associated with their telomeric counterparts.
ESTHER : Hall_2002_Nature_419_527
PubMedSearch : Hall_2002_Nature_419_527
PubMedID: 12368867
Gene_locus related to this paper: plaf7-c0h4q4 , plafa-MAL6P1.135 , plafa-PFD0185C , plafa-PFI1775W , plafa-PFI1800W

Title : The genome sequence of Schizosaccharomyces pombe - Wood_2002_Nature_415_871
Author(s) : Wood V , Gwilliam R , Rajandream MA , Lyne M , Lyne R , Stewart A , Sgouros J , Peat N , Hayles J , Baker S , Basham D , Bowman S , Brooks K , Brown D , Brown S , Chillingworth T , Churcher C , Collins M , Connor R , Cronin A , Davis P , Feltwell T , Fraser A , Gentles S , Goble A , Hamlin N , Harris D , Hidalgo J , Hodgson G , Holroyd S , Hornsby T , Howarth S , Huckle EJ , Hunt S , Jagels K , James K , Jones L , Jones M , Leather S , McDonald S , McLean J , Mooney P , Moule S , Mungall K , Murphy L , Niblett D , Odell C , Oliver K , O'Neil S , Pearson D , Quail MA , Rabbinowitsch E , Rutherford K , Rutter S , Saunders D , Seeger K , Sharp S , Skelton J , Simmonds M , Squares R , Squares S , Stevens K , Taylor K , Taylor RG , Tivey A , Walsh S , Warren T , Whitehead S , Woodward J , Volckaert G , Aert R , Robben J , Grymonprez B , Weltjens I , Vanstreels E , Rieger M , Schafer M , Muller-Auer S , Gabel C , Fuchs M , Dusterhoft A , Fritzc C , Holzer E , Moestl D , Hilbert H , Borzym K , Langer I , Beck A , Lehrach H , Reinhardt R , Pohl TM , Eger P , Zimmermann W , Wedler H , Wambutt R , Purnelle B , Goffeau A , Cadieu E , Dreano S , Gloux S , Lelaure V , Mottier S , Galibert F , Aves SJ , Xiang Z , Hunt C , Moore K , Hurst SM , Lucas M , Rochet M , Gaillardin C , Tallada VA , Garzon A , Thode G , Daga RR , Cruzado L , Jimenez J , Sanchez M , del Rey F , Benito J , Dominguez A , Revuelta JL , Moreno S , Armstrong J , Forsburg SL , Cerutti L , Lowe T , McCombie WR , Paulsen I , Potashkin J , Shpakovski GV , Ussery D , Barrell BG , Nurse P
Ref : Nature , 415 :871 , 2002
Abstract : We have sequenced and annotated the genome of fission yeast (Schizosaccharomyces pombe), which contains the smallest number of protein-coding genes yet recorded for a eukaryote: 4,824. The centromeres are between 35 and 110 kilobases (kb) and contain related repeats including a highly conserved 1.8-kb element. Regions upstream of genes are longer than in budding yeast (Saccharomyces cerevisiae), possibly reflecting more-extended control regions. Some 43% of the genes contain introns, of which there are 4,730. Fifty genes have significant similarity with human disease genes; half of these are cancer related. We identify highly conserved genes important for eukaryotic cell organization including those required for the cytoskeleton, compartmentation, cell-cycle control, proteolysis, protein phosphorylation and RNA splicing. These genes may have originated with the appearance of eukaryotic life. Few similarly conserved genes that are important for multicellular organization were identified, suggesting that the transition from prokaryotes to eukaryotes required more new genes than did the transition from unicellular to multicellular organization.
ESTHER : Wood_2002_Nature_415_871
PubMedSearch : Wood_2002_Nature_415_871
PubMedID: 11859360
Gene_locus related to this paper: schpo-APTH1 , schpo-be46 , schpo-BST1 , schpo-C2E11.08 , schpo-C14C4.15C , schpo-C22H12.03 , schpo-C23C4.16C , schpo-C57A10.08C , schpo-dyr , schpo-este1 , schpo-KEX1 , schpo-PCY1 , schpo-pdat , schpo-PLG7 , schpo-ppme1 , schpo-q9c0y8 , schpo-SPAC4A8.06C , schpo-C22A12.06C , schpo-SPAC977.15 , schpo-SPAPB1A11.02 , schpo-SPBC14C8.15 , schpo-SPBC530.12C , schpo-SPBC1711.12 , schpo-SPBPB2B2.02 , schpo-SPCC5E4.05C , schpo-SPCC417.12 , schpo-SPCC1672.09 , schpo-yb4e , schpo-yblh , schpo-ydw6 , schpo-ye7a , schpo-ye63 , schpo-ye88 , schpo-yeld , schpo-yk68 , schpo-clr3 , schpo-ykv6

Title : Massive gene decay in the leprosy bacillus - Cole_2001_Nature_409_1007
Author(s) : Cole ST , Eiglmeier K , Parkhill J , James KD , Thomson NR , Wheeler PR , Honore N , Garnier T , Churcher C , Harris D , Mungall K , Basham D , Brown D , Chillingworth T , Connor R , Davies RM , Devlin K , Duthoy S , Feltwell T , Fraser A , Hamlin N , Holroyd S , Hornsby T , Jagels K , Lacroix C , Maclean J , Moule S , Murphy L , Oliver K , Quail MA , Rajandream MA , Rutherford KM , Rutter S , Seeger K , Simon S , Simmonds M , Skelton J , Squares R , Squares S , Stevens K , Taylor K , Whitehead S , Woodward JR , Barrell BG
Ref : Nature , 409 :1007 , 2001
Abstract : Leprosy, a chronic human neurological disease, results from infection with the obligate intracellular pathogen Mycobacterium leprae, a close relative of the tubercle bacillus. Mycobacterium leprae has the longest doubling time of all known bacteria and has thwarted every effort at culture in the laboratory. Comparing the 3.27-megabase (Mb) genome sequence of an armadillo-derived Indian isolate of the leprosy bacillus with that of Mycobacterium tuberculosis (4.41 Mb) provides clear explanations for these properties and reveals an extreme case of reductive evolution. Less than half of the genome contains functional genes but pseudogenes, with intact counterparts in M. tuberculosis, abound. Genome downsizing and the current mosaic arrangement appear to have resulted from extensive recombination events between dispersed repetitive sequences. Gene deletion and decay have eliminated many important metabolic activities including siderophore production, part of the oxidative and most of the microaerophilic and anaerobic respiratory chains, and numerous catabolic systems and their regulatory circuits.
ESTHER : Cole_2001_Nature_409_1007
PubMedSearch : Cole_2001_Nature_409_1007
PubMedID: 11234002
Gene_locus related to this paper: mycle-a85a , mycle-a85b , mycle-a85c , mycle-lipG , mycle-LPQC , mycle-metx , mycle-ML0314 , mycle-ML0370 , mycle-ML0376 , mycle-ML1339 , mycle-ML1444 , mycle-ML1632 , mycle-ML1633 , mycle-ML1921 , mycle-ML2269 , mycle-ML2297 , mycle-ML2359 , mycle-ML2603 , mycle-mpt5 , mycle-PKS13 , mycle-PTRB , mycle-q9cc62 , mycle-q9cdb3

Title : Complete DNA sequence of a serogroup A strain of Neisseria meningitidis Z2491 - Parkhill_2000_Nature_404_502
Author(s) : Parkhill J , Achtman M , James KD , Bentley SD , Churcher C , Klee SR , Morelli G , Basham D , Brown D , Chillingworth T , Davies RM , Davis P , Devlin K , Feltwell T , Hamlin N , Holroyd S , Jagels K , Leather S , Moule S , Mungall K , Quail MA , Rajandream MA , Rutherford KM , Simmonds M , Skelton J , Whitehead S , Spratt BG , Barrell BG
Ref : Nature , 404 :502 , 2000
Abstract : Neisseria meningitidis causes bacterial meningitis and is therefore responsible for considerable morbidity and mortality in both the developed and the developing world. Meningococci are opportunistic pathogens that colonize the nasopharynges and oropharynges of asymptomatic carriers. For reasons that are still mostly unknown, they occasionally gain access to the blood, and subsequently to the cerebrospinal fluid, to cause septicaemia and meningitis. N. meningitidis strains are divided into a number of serogroups on the basis of the immunochemistry of their capsular polysaccharides; serogroup A strains are responsible for major epidemics and pandemics of meningococcal disease, and therefore most of the morbidity and mortality associated with this disease. Here we have determined the complete genome sequence of a serogroup A strain of Neisseria meningitidis, Z2491. The sequence is 2,184,406 base pairs in length, with an overall G+C content of 51.8%, and contains 2,121 predicted coding sequences. The most notable feature of the genome is the presence of many hundreds of repetitive elements, ranging from short repeats, positioned either singly or in large multiple arrays, to insertion sequences and gene duplications of one kilobase or more. Many of these repeats appear to be involved in genome fluidity and antigenic variation in this important human pathogen.
ESTHER : Parkhill_2000_Nature_404_502
PubMedSearch : Parkhill_2000_Nature_404_502
PubMedID: 10761919
Gene_locus related to this paper: neima-metx , neimb-q9k0t9 , neime-ESD , neime-NMA2216 , neime-NMB0276 , neime-NMB1877 , neimf-a1kta9 , neime-r0tza2

Title : The genome sequence of the food-borne pathogen Campylobacter jejuni reveals hypervariable sequences - Parkhill_2000_Nature_403_665
Author(s) : Parkhill J , Wren BW , Mungall K , Ketley JM , Churcher C , Basham D , Chillingworth T , Davies RM , Feltwell T , Holroyd S , Jagels K , Karlyshev AV , Moule S , Pallen MJ , Penn CW , Quail MA , Rajandream MA , Rutherford KM , van Vliet AH , Whitehead S , Barrell BG
Ref : Nature , 403 :665 , 2000
Abstract : Campylobacter jejuni, from the delta-epsilon group of proteobacteria, is a microaerophilic, Gram-negative, flagellate, spiral bacterium-properties it shares with the related gastric pathogen Helicobacter pylori. It is the leading cause of bacterial food-borne diarrhoeal disease throughout the world. In addition, infection with C. jejuni is the most frequent antecedent to a form of neuromuscular paralysis known as Guillain-Barre syndrome. Here we report the genome sequence of C. jejuni NCTC11168. C. jejuni has a circular chromosome of 1,641,481 base pairs (30.6% G+C) which is predicted to encode 1,654 proteins and 54 stable RNA species. The genome is unusual in that there are virtually no insertion sequences or phage-associated sequences and very few repeat sequences. One of the most striking findings in the genome was the presence of hypervariable sequences. These short homopolymeric runs of nucleotides were commonly found in genes encoding the biosynthesis or modification of surface structures, or in closely linked genes of unknown function. The apparently high rate of variation of these homopolymeric tracts may be important in the survival strategy of C. jejuni.
ESTHER : Parkhill_2000_Nature_403_665
PubMedSearch : Parkhill_2000_Nature_403_665
PubMedID: 10688204
Gene_locus related to this paper: camco-e0qbj3 , camco-q4hhu5 , camje-a3zji1 , camje-CJ0796C , camjr-q5ht69 , camju-a3yll6 , camju-Q9ZF63

Title : The complete nucleotide sequence of chromosome 3 of Plasmodium falciparum - Bowman_1999_Nature_400_532
Author(s) : Bowman S , Lawson D , Basham D , Brown D , Chillingworth T , Churcher CM , Craig A , Davies RM , Devlin K , Feltwell T , Gentles S , Gwilliam R , Hamlin N , Harris D , Holroyd S , Hornsby T , Horrocks P , Jagels K , Jassal B , Kyes S , McLean J , Moule S , Mungall K , Murphy L , Oliver K , Quail MA , Rajandream MA , Rutter S , Skelton J , Squares R , Squares S , Sulston JE , Whitehead S , Woodward JR , Newbold C , Barrell BG
Ref : Nature , 400 :532 , 1999
Abstract : Analysis of Plasmodium falciparum chromosome 3, and comparison with chromosome 2, highlights novel features of chromosome organization and gene structure. The sub-telomeric regions of chromosome 3 show a conserved order of features, including repetitive DNA sequences, members of multigene families involved in pathogenesis and antigenic variation, a number of conserved pseudogenes, and several genes of unknown function. A putative centromere has been identified that has a core region of about 2 kilobases with an extremely high (adenine + thymidine) composition and arrays of tandem repeats. We have predicted 215 protein-coding genes and two transfer RNA genes in the 1,060,106-base-pair chromosome sequence. The predicted protein-coding genes can be divided into three main classes: 52.6% are not spliced, 45.1% have a large exon with short additional 5' or 3' exons, and 2.3% have a multiple exon structure more typical of higher eukaryotes.
ESTHER : Bowman_1999_Nature_400_532
PubMedSearch : Bowman_1999_Nature_400_532
PubMedID: 10448855
Gene_locus related to this paper: plafa-PFC0950C