4J8C

Crystal structure of the dimerization domain of Hsc70-interacting protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.135 
  • R-Value Observed: 0.136 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure and function of Hip, an attenuator of the Hsp70 chaperone cycle.

Li, Z.Hartl, F.U.Bracher, A.

(2013) Nat Struct Mol Biol 20: 929-935

  • DOI: 10.1038/nsmb.2608
  • Primary Citation of Related Structures:  
    4J8C, 4J8D, 4J8E, 4J8F

  • PubMed Abstract: 
  • The Hsp70-interacting protein, Hip, cooperates with the chaperone Hsp70 in protein folding and prevention of aggregation. Hsp70 interacts with non-native protein substrates in an ATP-dependent reaction cycle regulated by J-domain proteins and nucleotide exchange factors (NEFs) ...

    The Hsp70-interacting protein, Hip, cooperates with the chaperone Hsp70 in protein folding and prevention of aggregation. Hsp70 interacts with non-native protein substrates in an ATP-dependent reaction cycle regulated by J-domain proteins and nucleotide exchange factors (NEFs). Hip is thought to delay substrate release by slowing ADP dissociation from Hsp70. Here we present crystal structures of the dimerization domain and the tetratricopeptide repeat (TPR) domain of rat Hip. As shown in a cocrystal structure, the TPR core of Hip interacts with the Hsp70 ATPase domain through an extensive interface, to form a bracket that locks ADP in the binding cleft. Hip and NEF binding to Hsp70 are mutually exclusive, and thus Hip attenuates active cycling of Hsp70-substrate complexes. This mechanism explains how Hip enhances aggregation prevention by Hsp70 and facilitates transfer of specific proteins to downstream chaperones or the proteasome.


    Organizational Affiliation

    Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Martinsried, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hsc70-interacting proteinA, B46Rattus norvegicusMutation(s): 0 
Gene Names: Fam10a1HipSt13
UniProt
Find proteins for P50503 (Rattus norvegicus)
Explore P50503 
Go to UniProtKB:  P50503
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50503
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.135 
  • R-Value Observed: 0.136 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 28.775α = 90
b = 43.978β = 93.44
c = 32.211γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
SHELXphasing
SHELXmodel building
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata scaling
XSCALEdata scaling
SHELXDphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-07-03
    Type: Initial release
  • Version 1.1: 2013-08-28
    Changes: Database references
  • Version 1.2: 2018-06-06
    Changes: Data collection, Refinement description