3ug5

Publication Abstract from PubMed

alpha-L-Arabinofuranosidase from the hyperthermophilic bacterium Thermotoga maritima (Tm-AFase) is an extremely thermophilic enzyme belonging to glycoside hydrolase family 51. It can catalyze the transglycosylation of a novel glycosyl donor, 4,6-dimethoxy-1,3,5-triazin-2-yl (DMT)-beta-D-xylopyranoside. In this study we determined the crystal structures of Tm-AFase in substrate-free and complex forms with arabinose and xylose at 1.8-2.3 A resolution to determine the architecture of the substrate binding pocket. Subsite -1 of Tm-AFase is similar to that of alpha-L-arabinofuranosidase from Geobacillus stearothermophilus, but the substrate binding pocket of Tm-AFase is narrower and more hydrophobic. Possible substrate binding modes were investigated by automated docking analysis.

Crystal Structures of Glycoside Hydrolase Family 51 alpha-L-Arabinofuranosidase from Thermotoga maritima.,Im DH, Kimura K, Hayasaka F, Tanaka T, Noguchi M, Kobayashi A, Shoda S, Miyazaki K, Wakagi T, Fushinobu S Biosci Biotechnol Biochem. 2012 Feb 23;76(2):423-8. Epub 2012 Feb 7. PMID:22313787^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.