2LSU

The NMR high resolution structure of yeast Tah1 in a free form


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High-Resolution Structural Analysis Shows How Tah1 Tethers Hsp90 to the R2TP Complex.

Back, R.Dominguez, C.Rothe, B.Bobo, C.Beaufils, C.Morera, S.Meyer, P.Charpentier, B.Branlant, C.Allain, F.H.Manival, X.

(2013) Structure 21: 1834-1847

  • DOI: 10.1016/j.str.2013.07.024
  • Primary Citation of Related Structures:  2LSV

  • 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 tw ...

    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.


    Organizational Affiliation

    Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), UMR 7365 Université de Lorraine-CNRS, Biopôle de l'Université de Lorraine, Campus Biologie Santé, 9 Avenue de la forêt de Haye, BP 184, 54505 Vandœuvre-lès-Nancy, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TPR repeat-containing protein associated with Hsp90
A
110Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: TAH1
Find proteins for P25638 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25638
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 2LSU Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2013-10-02
    Type: Database references
  • Version 1.2: 2013-10-30
    Type: Database references