5LYN

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

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:  

  • 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 high ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Small glutamine-rich tetratricopeptide repeat-containing protein 2
A, B
133Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SGT2
Find proteins for Q12118 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12118
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PRO-THR-VAL-GLU-GLU-VAL-ASP
C, D
7Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SSA1
Find proteins for P10591 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P10591
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.158 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.490α = 90.00
b = 61.090β = 108.81
c = 55.250γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
xia2data reduction
Aimlessdata scaling
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


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

Revision History 

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