3IUC

Crystal structure of the human 70kDa heat shock protein 5 (BiP/GRP78) ATPase domain in complex with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.194 

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Literature

Crystal structures of the ATPase domains of four human Hsp70 isoforms: HSPA1L/Hsp70-hom, HSPA2/Hsp70-2, HSPA6/Hsp70B', and HSPA5/BiP/GRP78

Wisniewska, M.Karlberg, T.Lehtio, L.Johansson, I.Kotenyova, T.Moche, M.Schuler, H.

(2010) PLoS One 5: e8625-e8625

  • DOI: 10.1371/journal.pone.0008625
  • Primary Citation of Related Structures:  
    3GDQ, 3FE1, 3IUC, 3JXU, 3I33

  • PubMed Abstract: 
  • The 70-kDa heat shock proteins (Hsp70) are chaperones with central roles in processes that involve polypeptide remodeling events. Hsp70 proteins consist of two major functional domains: an N-terminal nucleotide binding domain (NBD) with ATPase activity, and a C-terminal substrate binding domain (SBD) ...

    The 70-kDa heat shock proteins (Hsp70) are chaperones with central roles in processes that involve polypeptide remodeling events. Hsp70 proteins consist of two major functional domains: an N-terminal nucleotide binding domain (NBD) with ATPase activity, and a C-terminal substrate binding domain (SBD). We present the first crystal structures of four human Hsp70 isoforms, those of the NBDs of HSPA1L, HSPA2, HSPA5 and HSPA6. As previously with Hsp70 family members, all four proteins crystallized in a closed cleft conformation, although a slight cleft opening through rotation of subdomain IIB was observed for the HSPA5-ADP complex. The structures presented here support the view that the NBDs of human Hsp70 function by conserved mechanisms and contribute little to isoform specificity, which instead is brought about by the SBDs and by accessory proteins.


    Organizational Affiliation

    Structural Genomics Consortium, Karolinska Institutet, Stockholm, Sweden.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heat shock 70kDa protein 5 (Glucose-regulated protein, 78kDa)A, B [auth C]408Homo sapiensMutation(s): 0 
Gene Names: HSPA5GRP78
EC: 3.6.4.10
Find proteins for P11021 (Homo sapiens)
Explore P11021 
Go to UniProtKB:  P11021
NIH Common Fund Data Resources
PHAROS:  P11021
Protein Feature View
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  • Reference Sequence
Small Molecules
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ADPKd :  2170   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.194 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.212α = 98.85
b = 51.795β = 94.88
c = 94.994γ = 117.61
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History