Georgescu AM

References (2)

Title : The DNA sequence and biology of human chromosome 19 - Grimwood_2004_Nature_428_529
Author(s) : Grimwood J , Gordon LA , Olsen A , Terry A , Schmutz J , Lamerdin J , Hellsten U , Goodstein D , Couronne O , Tran-Gyamfi M , Aerts A , Altherr M , Ashworth L , Bajorek E , Black S , Branscomb E , Caenepeel S , Carrano A , Caoile C , Chan YM , Christensen M , Cleland CA , Copeland A , Dalin E , Dehal P , Denys M , Detter JC , Escobar J , Flowers D , Fotopulos D , Garcia C , Georgescu AM , Glavina T , Gomez M , Gonzales E , Groza M , Hammon N , Hawkins T , Haydu L , Ho I , Huang W , Israni S , Jett J , Kadner K , Kimball H , Kobayashi A , Larionov V , Leem SH , Lopez F , Lou Y , Lowry S , Malfatti S , Martinez D , McCready P , Medina C , Morgan J , Nelson K , Nolan M , Ovcharenko I , Pitluck S , Pollard M , Popkie AP , Predki P , Quan G , Ramirez L , Rash S , Retterer J , Rodriguez A , Rogers S , Salamov A , Salazar A , She X , Smith D , Slezak T , Solovyev V , Thayer N , Tice H , Tsai M , Ustaszewska A , Vo N , Wagner M , Wheeler J , Wu K , Xie G , Yang J , Dubchak I , Furey TS , DeJong P , Dickson M , Gordon D , Eichler EE , Pennacchio LA , Richardson P , Stubbs L , Rokhsar DS , Myers RM , Rubin EM , Lucas SM
Ref : Nature , 428 :529 , 2004
Abstract : Chromosome 19 has the highest gene density of all human chromosomes, more than double the genome-wide average. The large clustered gene families, corresponding high G + C content, CpG islands and density of repetitive DNA indicate a chromosome rich in biological and evolutionary significance. Here we describe 55.8 million base pairs of highly accurate finished sequence representing 99.9% of the euchromatin portion of the chromosome. Manual curation of gene loci reveals 1,461 protein-coding genes and 321 pseudogenes. Among these are genes directly implicated in mendelian disorders, including familial hypercholesterolaemia and insulin-resistant diabetes. Nearly one-quarter of these genes belong to tandemly arranged families, encompassing more than 25% of the chromosome. Comparative analyses show a fascinating picture of conservation and divergence, revealing large blocks of gene orthology with rodents, scattered regions with more recent gene family expansions and deletions, and segments of coding and non-coding conservation with the distant fish species Takifugu.
ESTHER : Grimwood_2004_Nature_428_529
PubMedSearch : Grimwood_2004_Nature_428_529
PubMedID: 15057824

Title : Insights into the evolution of Yersinia pestis through whole-genome comparison with Yersinia pseudotuberculosis - Chain_2004_Proc.Natl.Acad.Sci.U.S.A_101_13826
Author(s) : Chain PS , Carniel E , Larimer FW , Lamerdin J , Stoutland PO , Regala WM , Georgescu AM , Vergez LM , Land ML , Motin VL , Brubaker RR , Fowler J , Hinnebusch J , Marceau M , Medigue C , Simonet M , Chenal-Francisque V , Souza B , Dacheux D , Elliott JM , Derbise A , Hauser LJ , Garcia E
Ref : Proc Natl Acad Sci U S A , 101 :13826 , 2004
Abstract : Yersinia pestis, the causative agent of plague, is a highly uniform clone that diverged recently from the enteric pathogen Yersinia pseudotuberculosis. Despite their close genetic relationship, they differ radically in their pathogenicity and transmission. Here, we report the complete genomic sequence of Y. pseudotuberculosis IP32953 and its use for detailed genome comparisons with available Y. pestis sequences. Analyses of identified differences across a panel of Yersinia isolates from around the world reveal 32 Y. pestis chromosomal genes that, together with the two Y. pestis-specific plasmids, to our knowledge, represent the only new genetic material in Y. pestis acquired since the the divergence from Y. pseudotuberculosis. In contrast, 149 other pseudogenes (doubling the previous estimate) and 317 genes absent from Y. pestis were detected, indicating that as many as 13% of Y. pseudotuberculosis genes no longer function in Y. pestis. Extensive insertion sequence-mediated genome rearrangements and reductive evolution through massive gene loss, resulting in elimination and modification of preexisting gene expression pathways, appear to be more important than acquisition of genes in the evolution of Y. pestis. These results provide a sobering example of how a highly virulent epidemic clone can suddenly emerge from a less virulent, closely related progenitor.
ESTHER : Chain_2004_Proc.Natl.Acad.Sci.U.S.A_101_13826
PubMedSearch : Chain_2004_Proc.Natl.Acad.Sci.U.S.A_101_13826
PubMedID: 15358858
Gene_locus related to this paper: yerpe-BIOH , yerpe-dlhh , yerpe-IRP1 , yerpe-PIP , yerpe-PLDB , yerpe-PTRB , yerpe-Y0507 , yerpe-Y0644 , yerpe-y1616 , yerpe-y3224 , yerpe-YBTT , yerpe-YPLA , yerpe-YPO0180 , yerpe-YPO0667 , yerpe-YPO0773 , yerpe-YPO0776 , yerpe-YPO0986 , yerpe-YPO1501 , yerpe-YPO1997 , yerpe-YPO2002 , yerpe-YPO2336 , yerpe-YPO2526 , yerpe-YPO2638 , yerpe-YPO2814