1T15

Crystal Structure of the Brca1 BRCT Domains in Complex with the Phosphorylated Interacting Region from Bach1 Helicase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.206 

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This is version 1.2 of the entry. See complete history. 


Literature

Structure and mechanism of BRCA1 BRCT domain recognition of phosphorylated BACH1 with implications for cancer

Clapperton, J.A., Manke, I.A., Lowery, D.M., Ho, T., Haire, L.F., Yaffe, M.B., Smerdon, S.J.

(2004) Nat Struct Mol Biol 11: 512-518

  • DOI: 10.1038/nsmb775
  • Primary Citation of Related Structures:  
    1T15

  • PubMed Abstract: 

    • Germline mutations in the BRCA1 tumor suppressor gene often result in a significant increase in susceptibility to breast and ovarian cancers. Although the molecular basis of their effects remains largely obscure, many mutations are known to target the highly conserved C-terminal BRCT repeats that function as a phosphoserine/phosphothreonine-binding module ...

    Germline mutations in the BRCA1 tumor suppressor gene often result in a significant increase in susceptibility to breast and ovarian cancers. Although the molecular basis of their effects remains largely obscure, many mutations are known to target the highly conserved C-terminal BRCT repeats that function as a phosphoserine/phosphothreonine-binding module. We report the X-ray crystal structure at a resolution of 1.85 A of the BRCA1 tandem BRCT domains in complex with a phosphorylated peptide representing the minimal interacting region of the DEAH-box helicase BACH1. The structure reveals the determinants of this novel class of BRCA1 binding events. We show that a subset of disease-linked mutations act through specific disruption of phospho-dependent BRCA1 interactions rather than through gross structural perturbation of the tandem BRCT domains.

    Organizational Affiliation: 

    National Institute for Medical Research, Division of Protein Structure, The Ridgeway, Mill Hill, London NW7 1AA, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Breast cancer type 1 susceptibility proteinA214Homo sapiensMutation(s): 0 
Gene Names: BRCA1, RNF53
EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for P38398 (Homo sapiens)
Explore P38398 
Go to UniProtKB:  P38398
PHAROS:  P38398
GTEx:  ENSG00000012048 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP38398
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
BRCA1 interacting protein C-terminal helicase 1B8N/AMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BX63 (Homo sapiens)
Explore Q9BX63 
Go to UniProtKB:  Q9BX63
PHAROS:  Q9BX63
GTEx:  ENSG00000136492 
Entity Groups  
UniProt GroupQ9BX63
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		B L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.206 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.837α = 90
b = 65.837β = 90
c = 93.075γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-05-11
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance