5LYN

Structure of the Tpr Domain of Sgt2 in complex with yeast Ssa1 peptide fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.160 

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Literature

Structure and Interactions of the TPR Domain of Sgt2 with Yeast Chaperones and Ybr137wp.

Krysztofinska, E.M.Evans, N.J.Thapaliya, A.Murray, J.W.Morgan, R.M.L.Martinez-Lumbreras, S.Isaacson, R.L.

(2017) Front Mol Biosci 4: 68-68

  • DOI: 10.3389/fmolb.2017.00068
  • Primary Citation of Related Structures:  
    5LYN, 5LYP

  • PubMed Abstract: 
  • Small glutamine-rich tetratricopeptide repeat-containing protein 2 (Sgt2) is a multi-module co-chaperone involved in several protein quality control pathways. The TPR domain of Sgt2 and several other proteins, including SGTA, Hop, and CHIP, is a highly conserved motif known to form transient complexes with molecular chaperones such as Hsp70 and Hsp90 ...

    Small glutamine-rich tetratricopeptide repeat-containing protein 2 (Sgt2) is a multi-module co-chaperone involved in several protein quality control pathways. The TPR domain of Sgt2 and several other proteins, including SGTA, Hop, and CHIP, is a highly conserved motif known to form transient complexes with molecular chaperones such as Hsp70 and Hsp90. In this work, we present the first high resolution crystal structures of Sgt2_TPR alone and in complex with a C-terminal peptide PTVEEVD from heat shock protein, Ssa1. Using nuclear magnetic resonance spectroscopy and isothermal titration calorimetry, we demonstrate that Sgt2_TPR interacts with peptides corresponding to the C-termini of Ssa1, Hsc82, and Ybr137wp with similar binding modes and affinities.


    Organizational Affiliation

    Department of Chemistry, King's College London, London, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Small glutamine-rich tetratricopeptide repeat-containing protein 2A, B133Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SGT2YOR007CUNF346
UniProt
Find proteins for Q12118 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q12118 
Go to UniProtKB:  Q12118
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PRO-THR-VAL-GLU-GLU-VAL-ASPC, D7Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P10591 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P10591 
Go to UniProtKB:  P10591
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.160 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.49α = 90
b = 61.09β = 108.81
c = 55.25γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
xia2data reduction
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/L006952/1

Revision History  (Full details and data files)

  • Version 1.0: 2017-10-25
    Type: Initial release
  • Version 1.1: 2017-11-08
    Changes: Database references