2Z36

Crystal structure of cytochrome P450 MoxA from Nonomuraea recticatena (CYP105)

2Z36 の概要

• エントリーDOI: 10.2210/pdb2z36/pdb
• 分子名称: Cytochrome P450 type compactin 3'',4''-hydroxylase, FE (III) ION, PROTOPORPHYRIN IX CONTAINING FE, ... (5 entities in total)
• 機能のキーワード: p450, cyp105, oxidoreductase
• 由来する生物種: Nonomuraea recticatena
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 93513.89

構造登録者

Yasutake, Y.,Fujii, Y.,Fujii, T.,Arisawa, A.,Tamura, T. (登録日: 2007-06-02, 公開日: 2007-08-21, 最終更新日: 2023-11-01)

主引用文献

Yasutake, Y.,Imoto, N.,Fujii, Y.,Fujii, T.,Arisawa, A.,Tamura, T.
Crystal structure of cytochrome P450 MoxA from Nonomuraea recticatena (CYP105)
Biochem.Biophys.Res.Commun., 361:876-882, 2007

PubMed Abstract: Cytochrome P450 MoxA (P450moxA) from a rare actinomycete Nonomuraea recticatena belongs to the CYP105 family and exhibits remarkably broad substrate specificity. Here, we demonstrate that P450moxA acts on several luciferin derivatives, which were originally identified as substrates of the human microsomal P450s. We also describe the crystal structure of P450moxA in substrate-free form. Structural comparison with various bacterial and human microsomal P450s reveals that the P450moxA structure is most closely related to that of the fungal nitric oxide reductase P450nor (CYP55A1). Final refined model of P450moxA comprises almost all the residues, including the "BC-loop" and "FG-loop" regions pivotal for substrate recognition, and the current structure thus defines a well-ordered substrate-binding pocket. Clear electron density map reveals that the MES molecule is bound to the substrate-binding site, and the sixth coordination position of the heme iron is not occupied by a water molecule, probably due to the presence of MES molecule in the vicinity of the heme. The unexpected binding of the MES molecule might reflect the ability of P450moxA to accommodate a broad range of structurally diverse compounds.

PubMed: 17679139
DOI: 10.1016/j.bbrc.2007.07.062

実験手法

X-RAY DIFFRACTION (2.8 Å)