2LSV

The NMR high resolution structure of yeast Tah1 in complex with the Hsp90 C-terminal tail

2LSV の概要

• エントリーDOI: 10.2210/pdb2lsv/pdb
• 関連するPDBエントリー: 2LSU
• NMR情報: BMRB: 18447
• 分子名称: TPR repeat-containing protein associated with Hsp90, ATP-dependent molecular chaperone HSP82 (2 entities in total)
• 機能のキーワード: chaperone-binding protein-chaperone complex, chaperone-binding protein/chaperone
• 由来する生物種: Saccharomyces cerevisiae (Baker's yeast); 詳細
• 細胞内の位置: Cytoplasm: P25638 P02829
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 13430.98

構造登録者

Back, R.,Dominguez, C.,Rothe, B.,Bobo, C.,Beaufils, C.,Morera, S.,Meyer, P.,Charpentier, B.,Branlant, C.,Allain, F.,Manival, X. (登録日: 2012-05-07, 公開日: 2013-05-22, 最終更新日: 2024-05-15)

主引用文献

Back, R.,Dominguez, C.,Rothe, B.,Bobo, C.,Beaufils, C.,Morera, S.,Meyer, P.,Charpentier, B.,Branlant, C.,Allain, F.H.,Manival, X.
High-Resolution Structural Analysis Shows How Tah1 Tethers Hsp90 to the R2TP Complex.
Structure, 21:1834-1847, 2013

PubMed Abstract: The ubiquitous Hsp90 chaperone participates in snoRNP and RNA polymerase assembly through interaction with the R2TP complex. This complex includes the proteins Tah1, Pih1, Rvb1, and Rvb2. Tah1 bridges Hsp90 to R2TP. Its minimal TPR domain includes two TPR motifs and a capping helix. We established the high-resolution solution structures of Tah1 free and in complex with the Hsp90 C-terminal peptide. The TPR fold is similar in the free and bound forms and we show experimentally that in addition to its solvating/stabilizing role, the capping helix is essential for the recognition of the Hsp90 (704)EMEEVD(709) motif. In addition to Lys79 and Arg83 from the carboxylate clamp, this helix bears Tyr82 forming a π/S-CH3 interaction with Hsp90 M(705) from the peptide 310 helix. The Tah1 C-terminal region is unfolded, and we demonstrate that it is essential for the recruitment of the Pih1 C-terminal domain and folds upon binding.

PubMed: 24012479
DOI: 10.1016/j.str.2013.07.024

実験手法

SOLUTION NMR