4WV3

Crystal structure of the anthranilate CoA ligase AuaEII in complex with anthranoyl-AMP

4WV3 の概要

• エントリーDOI: 10.2210/pdb4wv3/pdb
• 分子名称: Anthranilate-CoA ligase, 5'-O-[(S)-[(2-aminobenzoyl)oxy](hydroxy)phosphoryl]adenosine (3 entities in total)
• 機能のキーワード: anthranilate, coa ligase, aurachin, natural product biosynthesis, ligase-ligase inhibitor complex, ligase/ligase inhibitor
• 由来する生物種: Stigmatella aurantiaca
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 118284.35

構造登録者

Tsai, S.C.,Muller, R.,Jackson, D.R.,Tu, S.S.,Nguyen, M.,Barajas, J.F.,Pistorious, D.,Krug, D. (登録日: 2014-11-04, 公開日: 2015-11-11, 最終更新日: 2023-09-27)

主引用文献

Jackson, D.R.,Tu, S.S.,Nguyen, M.,Barajas, J.F.,Schaub, A.J.,Krug, D.,Pistorius, D.,Luo, R.,Muller, R.,Tsai, S.C.
Structural Insights into Anthranilate Priming during Type II Polyketide Biosynthesis.
Acs Chem.Biol., 11:95-103, 2016

PubMed Abstract: The incorporation of nonacetate starter units during type II polyketide biosynthesis helps diversify natural products. Currently, there are few enzymatic strategies for the incorporation of nonacetate starter units in type II polyketide synthase (PKS) pathways. Here we report the crystal structure of AuaEII, the anthranilate:CoA ligase responsible for the generation of anthraniloyl-CoA, which is used as a starter unit by a type II PKS in aurachin biosynthesis. We present structural and protein sequence comparisons to other aryl:CoA ligases. We also compare the AuaEII crystal structure to a model of a CoA ligase homologue, AuaE, which is present in the same gene cluster. AuaE is predicted to have the same fold as AuaEII, but instead of CoA ligation, AuaE catalyzes acyl transfer of anthranilate from anthraniloyl-CoA to the acyl carrier protein (ACP). Together, this work provides insight into the molecular basis for starter unit selection of anthranilate in type II PKS biosynthesis.

PubMed: 26473393
DOI: 10.1021/acschembio.5b00500

実験手法

X-RAY DIFFRACTION (2.599 Å)