4C5A

The X-ray crystal structures of D-alanyl-D-alanine ligase in complex ADP and D-cycloserine phosphate

4C5A の概要

• エントリーDOI: 10.2210/pdb4c5a/pdb
• 関連するPDBエントリー: 4C5B 4C5C
• 分子名称: D-ALANINE--D-ALANINE LIGASE, PEPTIDE, ADENOSINE-5'-DIPHOSPHATE, ... (7 entities in total)
• 機能のキーワード: ligase, ddlb, antibiotic
• 由来する生物種: ESCHERICHIA COLI K-12; 詳細
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 74122.52

構造登録者

Batson, S.,Majce, V.,Lloyd, A.J.,Rea, D.,Fishwick, C.W.G.,Simmons, K.J.,Fulop, V.,Roper, D.I. (登録日: 2013-09-10, 公開日: 2015-01-21, 最終更新日: 2023-12-20)

主引用文献

Batson, S.,de Chiara, C.,Majce, V.,Lloyd, A.J.,Gobec, S.,Rea, D.,Fulop, V.,Thoroughgood, C.W.,Simmons, K.J.,Dowson, C.G.,Fishwick, C.W.G.,de Carvalho, L.P.S.,Roper, D.I.
Inhibition of D-Ala:D-Ala ligase through a phosphorylated form of the antibiotic D-cycloserine.
Nat Commun, 8:1939-1939, 2017

PubMed Abstract: D-cycloserine is an antibiotic which targets sequential bacterial cell wall peptidoglycan biosynthesis enzymes: alanine racemase and D-alanine:D-alanine ligase. By a combination of structural, chemical and mechanistic studies here we show that the inhibition of D-alanine:D-alanine ligase by the antibiotic D-cycloserine proceeds via a distinct phosphorylated form of the drug. This mechanistic insight reveals a bimodal mechanism of action for a single antibiotic on different enzyme targets and has significance for the design of future inhibitor molecules based on this chemical structure.

PubMed: 29208891
DOI: 10.1038/s41467-017-02118-7

実験手法

X-RAY DIFFRACTION (1.65 Å)