6GXZ

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.965 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 

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
  • Primary Citation of Related Structures:  

  • 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

    LBMCE, UMR 8226 CNRS Sorbonne Université, IBPC, 75005 Paris, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II-associated protein 3
A, C
165Homo sapiensMutation(s): 0 
Gene Names: RPAP3
Find proteins for Q9H6T3 (Homo sapiens)
Go to Gene View: RPAP3
Go to UniProtKB:  Q9H6T3
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PIH1 domain-containing protein 1
D, E
96Homo sapiensMutation(s): 0 
Gene Names: PIH1D1 (NOP17)
Find proteins for Q9NWS0 (Homo sapiens)
Go to Gene View: PIH1D1
Go to UniProtKB:  Q9NWS0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.965 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.223 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 135.980α = 90.00
b = 42.440β = 98.25
c = 112.710γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
XDSdata reduction
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



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
    Type: Data collection, Database references
  • Version 1.2: 2018-10-03
    Type: Data collection