1C03

CRYSTAL STRUCTURE OF YPD1P (TRICLINIC FORM)

1C03 の概要

• エントリーDOI: 10.2210/pdb1c03/pdb
• 関連するPDBエントリー: 2A0B
• 分子名称: HYPOTHETICAL PROTEIN YDL235C (2 entities in total)
• 機能のキーワード: four helical bundle, signal transduction, signaling protein
• 由来する生物種: Saccharomyces cerevisiae (baker's yeast)
• 細胞内の位置: Cytoplasm: Q07688
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 77303.20

構造登録者

Song, H.K.,Lee, J.Y.,Lee, M.G.,Suh, S.W. (登録日: 1999-07-14, 公開日: 2000-01-15, 最終更新日: 2024-02-07)

主引用文献

Song, H.K.,Lee, J.Y.,Lee, M.G.,Moon, J.,Min, K.,Yang, J.K.,Suh, S.W.
Insights into eukaryotic multistep phosphorelay signal transduction revealed by the crystal structure of Ypd1p from Saccharomyces cerevisiae.
J.Mol.Biol., 293:753-761, 1999

PubMed Abstract: "Two-component" phosphorelay signal transduction systems constitute a potential target for antibacterial and antifungal agents, since they are found exclusively in prokaryotes and lower eukaryotes (yeast, fungi, slime mold, and plants) but not in mammalian organisms. Saccharomyces cerevisiae Ypd1p, a key intermediate in the osmosensing multistep phosphorelay signal transduction, catalyzes the phosphoryl group transfer between response regulators. Its 1.8 A structure, representing the first example of a eukaryotic phosphorelay protein, contains a four-helix bundle as in the HPt domain of Escherichia coli ArcB sensor kinase. However, Ypd1p has a 44-residue insertion between the last two helices of the helix bundle. The side-chain of His64, the site of phosphorylation, protrudes into the solvent. The structural resemblance between Ypd1p and ArcB HPt domain suggests that both prokaryotes and lower eukaryotes utilize the same basic protein fold for phosphorelay signal transduction. This study sheds light on the best characterized eukaryotic phosphorelay system.

PubMed: 10543964
DOI: 10.1006/jmbi.1999.3215

実験手法

X-RAY DIFFRACTION (2.3 Å)