6UH4

B. theta Bile Salt Hydrolase with covalent inhibitor

6UH4 の概要

• エントリーDOI: 10.2210/pdb6uh4/pdb
• 関連するPDBエントリー: 6UFY
• 分子名称: Choloylglycine hydrolase, (5R,6R)-6-[(1S,2R,4aS,4bS,7R,8aS,10R,10aS)-7,10-dihydroxy-1,2,4b-trimethyltetradecahydrophenanthren-2-yl]-5-methylheptan-2-one (2 entities in total)
• 機能のキーワード: bile salt hydrolase b. theta, hydrolase-hydrolase inhibitor complex, hydrolase/hydrolase inhibitor
• 由来する生物種: Bacteroides thetaiotaomicron
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 152241.37

構造登録者

Seegar, T.C.M. (登録日: 2019-09-26, 公開日: 2020-02-19, 最終更新日: 2024-11-06)

主引用文献

Adhikari, A.A.,Seegar, T.C.M.,Ficarro, S.B.,McCurry, M.D.,Ramachandran, D.,Yao, L.,Chaudhari, S.N.,Ndousse-Fetter, S.,Banks, A.S.,Marto, J.A.,Blacklow, S.C.,Devlin, A.S.
Development of a covalent inhibitor of gut bacterial bile salt hydrolases.
Nat.Chem.Biol., 16:318-326, 2020

PubMed Abstract: Bile salt hydrolase (BSH) enzymes are widely expressed by human gut bacteria and catalyze the gateway reaction leading to secondary bile acid formation. Bile acids regulate key metabolic and immune processes by binding to host receptors. There is an unmet need for a potent tool to inhibit BSHs across all gut bacteria to study the effects of bile acids on host physiology. Here, we report the development of a covalent pan-inhibitor of gut bacterial BSHs. From a rationally designed candidate library, we identified a lead compound bearing an alpha-fluoromethyl ketone warhead that modifies BSH at the catalytic cysteine residue. This inhibitor abolished BSH activity in conventional mouse feces. Mice gavaged with a single dose of this compound displayed decreased BSH activity and decreased deconjugated bile acid levels in feces. Our studies demonstrate the potential of a covalent BSH inhibitor to modulate bile acid composition in vivo.

PubMed: 32042200
DOI: 10.1038/s41589-020-0467-3

実験手法

X-RAY DIFFRACTION (3.51 Å)