3UG4

Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex

3UG4 の概要

• エントリーDOI: 10.2210/pdb3ug4/pdb
• 関連するPDBエントリー: 3UG3 3UG5
• 分子名称: Alpha-L-arabinofuranosidase, 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL, alpha-L-arabinofuranose, ... (4 entities in total)
• 機能のキーワード: tim barrel, hydrolase
• 由来する生物種: Thermotoga maritima
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 350432.60

構造登録者

Im, D.-H.,Miyazaki, K.,Wakagi, T.,Fushinobu, S. (登録日: 2011-11-02, 公開日: 2012-03-07, 最終更新日: 2023-11-01)

主引用文献

Im, D.-H.,Kimura, K.I.,Hayasaka, F.,Tanaka, T.,Noguchi, M.,Kobayashi, A.,Shoda, S.,Miyazaki, K.,Wakagi, T.,Fushinobu, S.
Crystal Structures of Glycoside Hydrolase Family 51 alpha-L-Arabinofuranosidase from Thermotoga maritima
Biosci.Biotechnol.Biochem., 76:423-428, 2012

PubMed Abstract: α-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)-β-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 Å resolution to determine the architecture of the substrate binding pocket. Subsite -1 of Tm-AFase is similar to that of α-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.

PubMed: 22313787
DOI: 10.1271/bbb.110902

実験手法

X-RAY DIFFRACTION (2.15 Å)