2QGI

The UDP complex structure of the sixth gene product of the F1-ATPase operon of Rhodobacter blasticus

2QGI の概要

• エントリーDOI: 10.2210/pdb2qgi/pdb
• 関連するPDBエントリー: 2NXV
• 分子名称: ATP synthase subunits region ORF 6, MANGANESE (II) ION, URIDINE-5'-DIPHOSPHATE, ... (4 entities in total)
• 機能のキーワード: majastridin, atpase operon, glycosyl transferase, rossmann fold, udp-complex, transferase
• 由来する生物種: Rhodobacter blasticus
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 57955.22

構造登録者

Enroth, C.,Strid, A. (登録日: 2007-06-29, 公開日: 2008-01-22, 最終更新日: 2023-08-30)

主引用文献

Enroth, C.,Strid, A.
Crystal structure of a protein, structurally related to glycosyltransferases, encoded in the Rhodobacter blasticus atp operon.
Biochim.Biophys.Acta, 1784:379-384, 2008

PubMed Abstract: The F1-ATP synthase atp operon in the proteobacterium Rhodobacter blasticus contains six open reading frames, encoding six hypothetical proteins. Five of these subunits, in the stoichiometry (alphabeta)3gamma delta epsilon make up the catalytic F1-ATP synthase complex similarly in bacteria, chloroplasts and mitochondria. The sixth gene of the R. blasticus atp operon, urf6, shows very little sequence homology to any protein of known structure or function. The gene has previously been cloned, the product (called majastridin) has been heterologously expressed in Escherichia coli, and purified to high homogeneity [M. Brosché, I. Kalbina, M. Arnfelt, G. Benito, B.G. Karlsson, A. Strid, Occurrence, overexpression and partial purification of the protein (majastridin) corresponding to the URF6 gene of the Rhodobacter blasticus atp operon, Eur. J. Biochem. 255 (1998) 87-92]. We have solved the X-ray crystal structure and refined a model of majastridin to atomic resolution. Here we present the crystal structures of apo-majastridin and the complex of majastridin with Mn2+ and UDP and show that it has extensive structural similarity to glycosyltransferases (EC 2.4). This is the first structure determined from a new group of distantly related bacterial proteins of at least six members. They share the identical amino acids that bind Mn2+ and a triplet of amino acids in the putative sugar-binding site.

PubMed: 18067873
DOI: 10.1016/j.bbapap.2007.11.005

実験手法

X-RAY DIFFRACTION (1.65 Å)