Lemos EGM

References (2)

Title : Characterization of a new bifunctional endo-1,4-beta-xylanase\/esterase found in the rumen metagenome - Pavarina_2021_Sci.Rep_11_10440
Author(s) : Pavarina GC , Lemos EGM , Lima NSM , Pizauro JM, Jr.
Ref : Sci Rep , 11 :10440 , 2021
Abstract : Metagenomic data mining of the Nellore cattle rumen microbiota identified a new bifunctional enzyme, endo-1,4-beta-xylanase/esterase, which was subsequently overexpressed in E. coli BL21 (DE3). This enzyme was stable at pH intervals of 5 to 6.5 and temperatures between 30 and 45 degreesC, and under the test conditions, it had a V(max) of 30.959 +/- 2.334 micromol/min/mg, K(m) of 3.6 +/- 0.6 mM and k(cat) of 2.323 +/- 175 s(-1). Additionally, the results showed that the enzyme is tolerant to NaCl and organic solvents and therefore is suitable for industrial environments. Xylanases are widely applicable, and the synergistic activity of endo-1,4-beta-xylanase/esterase in a single molecule will improve the degradation efficiency of heteroxylans via the creation of xylanase binding sites. Therefore, this new molecule has the potential for use in lignocellulosic biomass processing and as an animal feed food additive and could improve xylooligosaccharide production efficiency.
ESTHER : Pavarina_2021_Sci.Rep_11_10440
PubMedSearch : Pavarina_2021_Sci.Rep_11_10440
PubMedID: 34001974
Gene_locus related to this paper: 9bact-XylRest

Title : Comparison of the genomes of two Xanthomonas pathogens with differing host specificities - da Silva_2002_Nature_417_459
Author(s) : da Silva ACR , Ferro JA , Reinach FC , Farah CS , Furlan LR , Quaggio RB , Monteiro-Vitorello CB , Van Sluys MA , Almeida Jr NF , Alves LMC , do Amaral AM , Bertolini MC , Camargo LEA , Camarotte G , Cannavan F , Cardozo J , Chambergo F , Ciapina LP , Cicarelli RMB , Coutinho LL , Cursino-Santos JR , El-Dorry H , Faria JB , Ferreira AJS , Ferreira RCC , Ferro MIT , Formighieri EF , Franco MC , Greggio CC , Gruber A , Katsuyama AM , Kishi LT , Leite JrRP , Lemos EGM , Lemos MVF , Locali EC , Machado MA , Madeira AMBN , Martinez-Rossi NM , Martins EC , Meidanis J , Menck CFM , Miyaki CY , Moon DH , Moreira LM , Novo MTM , Okura VK , Oliveira MC , Oliveira VR , Pereira Jr HA , Rossi A , Sena JAD , Silva C , de Souza RF , Spinola LAF , Takita MA , Tamura RE , Teixeira EC , Tezza RID , Trindade dos Santos M , Truffi D , Tsai SM , White FF , Setubal JC , Kitajima JP
Ref : Nature , 417 :459 , 2002
Abstract : The genus Xanthomonas is a diverse and economically important group of bacterial phytopathogens, belonging to the gamma-subdivision of the Proteobacteria. Xanthomonas axonopodis pv. citri (Xac) causes citrus canker, which affects most commercial citrus cultivars, resulting in significant losses worldwide. Symptoms include canker lesions, leading to abscission of fruit and leaves and general tree decline. Xanthomonas campestris pv. campestris (Xcc) causes black rot, which affects crucifers such as Brassica and Arabidopsis. Symptoms include marginal leaf chlorosis and darkening of vascular tissue, accompanied by extensive wilting and necrosis. Xanthomonas campestris pv. campestris is grown commercially to produce the exopolysaccharide xanthan gum, which is used as a viscosifying and stabilizing agent in many industries. Here we report and compare the complete genome sequences of Xac and Xcc. Their distinct disease phenotypes and host ranges belie a high degree of similarity at the genomic level. More than 80% of genes are shared, and gene order is conserved along most of their respective chromosomes. We identified several groups of strain-specific genes, and on the basis of these groups we propose mechanisms that may explain the differing host specificities and pathogenic processes.
ESTHER : da Silva_2002_Nature_417_459
PubMedSearch : da Silva_2002_Nature_417_459
PubMedID: 12024217
Gene_locus related to this paper: xanac-q8phx9 , xanac-q8pmm6 , xanax-ACVB , xanax-BIOH , xanax-CATD , xanax-CPO , xanax-DHAA , xancp-OleB , xanax-ENTF2 , xanax-estA1 , xanax-GAA , xanax-META , xanax-METX , xanax-PCAD , xanax-PHBC , xanax-PTRB , xanax-Q8PMQ8 , xanax-Q8PQP0 , xanax-XAC0198 , xanax-XAC0262 , xanax-XAC0279 , xanax-XAC0319 , xanax-XAC0372 , xanax-XAC0375 , xanax-XAC0501 , xanax-XAC0515 , xanax-XAC0574 , xanax-XAC0591 , xanax-XAC0619 , xanax-XAC0628 , xanax-XAC0736 , xanax-XAC0753 , xanax-XAC0805 , xanax-XAC0874 , xanax-XAC0916 , xanax-XAC1200 , xanax-XAC1213 , xanax-XAC1591 , xanax-XAC1713 , xanax-XAC1752 , xanax-XAC2126 , xanax-XAC2393 , xanax-XAC2532 , xanax-XAC2541 , xanax-XAC2907 , xanax-XAC2981 , xanax-XAC2987 , xanax-XAC2990 , xanax-XAC3037 , xanax-XAC3053 , xanax-XAC3152 , xanax-XAC3173 , xanax-XAC3315 , xanax-XAC3371 , xanax-XAC3619 , xanax-XAC3674 , xanax-XAC3770 , xanax-XAC3967 , xanax-XAC3999 , xanax-XAC4046 , xanax-XAC4055 , xanax-XAC4106 , xanax-XAC4221 , xanax-XAC4316 , xanax-XYNB , xanca-acvB , xanca-BIOH , xanca-CATD , xanca-CPO , xanca-estA1 , xanca-impep , xanca-META , xanca-METX , xanca-PCAD , xanca-PHBC , xanca-Q8PB04 , xanca-W78 , xanca-XCC0080 , xanca-XCC0180 , xanca-XCC0243 , xanca-XCC0260 , xanca-XCC0266 , xanca-XCC0372 , xanca-XCC0375 , xanca-XCC0753 , xanca-XCC0757 , xanca-XCC0800 , xanca-XCC0843 , xanca-XCC1105 , xanca-XCC1541 , xanca-XCC1734 , xanca-XCC2285 , xanca-XCC2374 , xanca-XCC2397 , xanca-XCC2405 , xanca-XCC2566 , xanca-XCC2722 , xanca-XCC2737 , xanca-XCC2811 , xanca-XCC2817 , xanca-XCC2854 , xanca-XCC2869 , xanca-XCC2957 , xanca-XCC3028 , xanca-XCC3164 , xanca-XCC3219 , xanca-XCC3296 , xanca-XCC3300 , xanca-XCC3308 , xanca-XCC3320 , xanca-XCC3514 , xanca-XCC3548 , xanca-XCC3555 , xanca-XCC3623 , xanca-XCC3885 , xanca-XCC3915 , xanca-XCC3961 , xanca-XCC3970 , xanca-XCC4016 , xanca-XCC4096 , xanca-XCC4180 , xanca-XYNB , xanca-XYNB2 , xancb-b0rq23 , xancp-q8pax3 , xancp-y2094