6IJ1

Crystal structure of a protein from Actinoplanes

6IJ1 の概要

• エントリーDOI: 10.2210/pdb6ij1/pdb
• 分子名称: Prenylcyclase, IMIDAZOLE, ACETATE ION, ... (4 entities in total)
• 機能のキーワード: prenyltransferase, transferase
• 由来する生物種: Actinoplanes teichomyceticus
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 37654.94

構造登録者

Yang, Z.Z.,Zhang, L.L.,Liu, W.D.,Chen, C.C.,Guo, R.T. (登録日: 2018-10-08, 公開日: 2019-09-11, 最終更新日: 2024-03-27)

主引用文献

Yang, Z.,Zhang, L.,Yu, X.,Wu, S.,Yang, Y.,Hu, Y.,Li, Q.,Shang, N.,Guo, R.T.,Chen, C.C.,Dai, L.,Liu, W.
Crystal structure of TchmY from Actinoplanes teichomyceticus.
Acta Crystallogr.,Sect.F, 75:570-575, 2019

PubMed Abstract: Moenomycin-type antibiotics are phosphoglycolipids that are notable for their unique modes of action and have proven to be useful in animal nutrition. The gene clusters tchm from Actinoplanes teichomyceticus and moe from Streptomyces are among a limited number of known moenomycin-biosynthetic pathways. Most genes in tchm have counterparts in the moe cluster, except for tchmy and tchmz, the functions of which remain unknown. Sequence analysis indicates that TchmY belongs to the isoprenoid enzyme C2-like superfamily and may serve as a prenylcyclase. The enzyme was proposed to be involved in terminal cyclization of the moenocinyl chain in teichomycin, leading to the diumycinol chain of moenomycin isomers. Here, recombinant TchmY protein was expressed in Escherichia coli and its crystal structure was solved by SIRAS. Structural analysis and comparison with other prenylcyclases were performed. The overall fold of TchmY consists of an (α/α)-barrel, and a potential substrate-binding pocket is found in the central chamber. These results should provide important information regarding the biosynthetic basis of moenomycin antibiotics.

PubMed: 31475923
DOI: 10.1107/S2053230X19010914

実験手法

X-RAY DIFFRACTION (1.521 Å)