6GXZ

Crystal structure of the human RPAP3(TPR2)-PIH1D1(CS) complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.96 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Deep Structural Analysis of RPAP3 and PIH1D1, Two Components of the HSP90 Co-chaperone R2TP Complex.

Henri, J.Chagot, M.E.Bourguet, M.Abel, Y.Terral, G.Maurizy, C.Aigueperse, C.Georgescauld, F.Vandermoere, F.Saint-Fort, R.Behm-Ansmant, I.Charpentier, B.Pradet-Balade, B.Verheggen, C.Bertrand, E.Meyer, P.Cianferani, S.Manival, X.Quinternet, M.

(2018) Structure 26: 1196-1209.e8

  • DOI: 10.1016/j.str.2018.06.002
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • RPAP3 and PIH1D1 are part of the HSP90 co-chaperone R2TP complex involved in the assembly process of many molecular machines. In this study, we performed a deep structural investigation of the HSP binding abilities of the two TPR domains of RPAP3. We ...

    RPAP3 and PIH1D1 are part of the HSP90 co-chaperone R2TP complex involved in the assembly process of many molecular machines. In this study, we performed a deep structural investigation of the HSP binding abilities of the two TPR domains of RPAP3. We combined 3D NMR, non-denaturing MS, and ITC techniques with Y2H, IP-LUMIER, FRET, and ATPase activity assays and explain the fundamental role played by the second TPR domain of RPAP3 in the specific recruitment of HSP90. We also established the 3D structure of an RPAP3:PIH1D1 sub-complex demonstrating the need for a 34-residue insertion, specific of RPAP3 isoform 1, for the tight binding of PIH1D1. We also confirm the existence of a complex lacking PIH1D1 in human cells (R2T), which shows differential binding to certain clients. These results highlight similarities and differences between the yeast and human R2TP complexes, and document the diversification of this family of co-chaperone complexes in human.


    Organizational Affiliation

    Université de Lorraine, CNRS, INSERM, IBSLor, 54000 Nancy, France. Electronic address: marc.quinternet@univ-lorraine.fr.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II-associated protein 3A, C165Homo sapiensMutation(s): 0 
Gene Names: RPAP3
Find proteins for Q9H6T3 (Homo sapiens)
Explore Q9H6T3 
Go to UniProtKB:  Q9H6T3
NIH Common Fund Data Resources
PHAROS  Q9H6T3
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PIH1 domain-containing protein 1D, E96Homo sapiensMutation(s): 0 
Gene Names: PIH1D1NOP17
Find proteins for Q9NWS0 (Homo sapiens)
Explore Q9NWS0 
Go to UniProtKB:  Q9NWS0
NIH Common Fund Data Resources
PHAROS  Q9NWS0
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.96 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.226 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.98α = 90
b = 42.44β = 98.25
c = 112.71γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-AA-BSV8-01503
French National Research AgencyFranceANR-16-CE11-0032-02

Revision History 

  • Version 1.0: 2018-08-08
    Type: Initial release
  • Version 1.1: 2018-09-12
    Changes: Data collection, Database references
  • Version 1.2: 2018-10-03
    Changes: Data collection