2W90

Geobacillus stearothermophilus 6-phosphogluconate dehydrogenase with bound 6- phosphogluconate

2W90 の概要

• エントリーDOI: 10.2210/pdb2w90/pdb
• 関連するPDBエントリー: 2W8Z
• 分子名称: 6-PHOSPHOGLUCONATE DEHYDROGENASE, DECARBOXYLATING, 6-PHOSPHOGLUCONIC ACID, 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL, ... (5 entities in total)
• 機能のキーワード: 6pdh, geobacillus, dehydrogenase, phsophogluconate, oxidoreductase
• 由来する生物種: GEOBACILLUS STEAROTHERMOPHILUS
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 105109.83

構造登録者

Cameron, S.,Martini, V.P.,Iulek, J.,Hunter, W.N. (登録日: 2009-01-20, 公開日: 2009-04-07, 最終更新日: 2023-12-13)

主引用文献

Cameron, S.,Martini, V.P.,Iulek, J.,Hunter, W.N.
Geobacillus Stearothermophilus 6-Phosphogluconate Dehydrogenase, Complexed with 6-Phosphogluconate.
Acta Crystallogr.,Sect.F, 65:450-, 2009

PubMed Abstract: Two crystal structures of recombinant Geobacillus stearothermophilus 6-phosphogluconate dehydrogenase (Gs6PDH) in complex with the substrate 6-phosphogluconate have been determined at medium resolution. Gs6PDH shares significant sequence identity and structural similarity with the enzymes from Lactococcus lactis, sheep liver and the protozoan parasite Trypanosoma brucei, for which a range of structures have previously been reported. Comparisons indicate that amino-acid sequence conservation is more pronounced in the two domains that contribute to the architecture of the active site, namely the N-terminal and C-terminal domains, compared with the central domain, which is primarily involved in the subunit-subunit associations required to form a stable dimer. The active-site residues are highly conserved, as are the interactions with the 6-phosphogluconate. There is interest in 6PDH as a potential drug target for the protozoan parasite T. brucei, the pathogen responsible for African sleeping sickness. The recombinant T. brucei enzyme has proven to be recalcitrant to enzyme-ligand studies and a surrogate protein might offer new opportunities to investigate and characterize 6PDH inhibitors. The high degree of structural similarity, efficient level of expression and straightforward crystallization conditions mean that Gs6PDH may prove to be an appropriate model system for structure-based inhibitor design targeting the enzyme from Trypanosoma species.

PubMed: 19407374
DOI: 10.1107/S1744309109012767

実験手法

X-RAY DIFFRACTION (2.2 Å)