2Q6U

SeMet-substituted form of NikD

2Q6U の概要

• エントリーDOI: 10.2210/pdb2q6u/pdb
• 関連するPDBエントリー: 2OLN 2OLO
• 分子名称: NikD protein, FLAVIN-ADENINE DINUCLEOTIDE, BENZOIC ACID, ... (4 entities in total)
• 機能のキーワード: flavoprotein, rossmann fold
• 由来する生物種: Streptomyces tendae
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 45159.29

構造登録者

Carrell, C.J.,Bruckner, R.C.,Venci, D.,Zhao, G.,Jorns, M.S.,Mathews, F.S. (登録日: 2007-06-05, 公開日: 2007-07-31, 最終更新日: 2017-10-18)

主引用文献

Carrell, C.J.,Bruckner, R.C.,Venci, D.,Zhao, G.,Jorns, M.S.,Mathews, F.S.
NikD, an Unusual Amino Acid Oxidase Essential for Nikkomycin Biosynthesis: Structures of Closed and Open Forms at 1.15 and 1.90 A Resolution
Structure, 15:928-941, 2007

PubMed Abstract: NikD is an unusual amino-acid-oxidizing enzyme that contains covalently bound FAD, catalyzes a 4-electron oxidation of piperideine-2-carboxylic acid to picolinate, and plays a critical role in the biosynthesis of nikkomycin antibiotics. Crystal structures of closed and open forms of nikD, a two-domain enzyme, have been determined to resolutions of 1.15 and 1.9 A, respectively. The two forms differ by an 11 degrees rotation of the catalytic domain with respect to the FAD-binding domain. The active site is inaccessible to solvent in the closed form; an endogenous ligand, believed to be picolinate, is bound close to and parallel with the flavin ring, an orientation compatible with redox catalysis. The active site is solvent accessible in the open form, but the picolinate ligand is approximately perpendicular to the flavin ring and a tryptophan is stacked above the flavin ring. NikD also contains a mobile cation binding loop.

PubMed: 17697998
DOI: 10.1016/j.str.2007.06.010

実験手法

X-RAY DIFFRACTION (1.75 Å)