Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 24.59 kDa 
• Atom Count: 1660 
• Residue Count: 207 
• Unique protein chains: 1

1JNX

Crystal structure of the BRCT repeat region from the breast cancer associated protein, BRCA1

• DOI: 10.2210/pdb1JNX/pdb

• Classification: GENE REGULATION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-07-26 Released: 2001-09-21 
• Deposition Author(s): Williams, R.S., Green, R., Glover, J.N.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.302 
• R-Value Work: 0.259 
• R-Value Observed: 0.262 

Literature

Crystal structure of the BRCT repeat region from the breast cancer-associated protein BRCA1.

Williams, R.S., Green, R., Glover, J.N.

(2001) Nat Struct Biol 8: 838-842

• PubMed: 11573086 
• DOI: 10.1038/nsb1001-838
• Primary Citation of Related Structures:  
  1JNX


• PubMed Abstract: 
  

The C-terminal BRCT region of BRCA1 is essential for its DNA repair, transcriptional regulation and tumor suppressor functions. Here we determine the crystal structure of the BRCT domain of human BRCA1 at 2.5 A resolution. The domain contains two BRCT repeats that adopt similar structures and are packed together in a head-to-tail arrangement. Cancer-causing missense mutations occur at the interface between the two repeats and destabilize the structure. The manner by which the two BRCT repeats interact in BRCA1 may represent a general mode of interaction between homologous domains within proteins that interact to regulate the cellular response to DNA damage. The structure provides a basis to predict the structural consequences of uncharacterized BRCA1 mutations.

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Organizational Affiliation: 

Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BREAST CANCER TYPE 1 SUSCEPTIBILITY PROTEIN	X	214	Homo sapiens	Mutation(s): 0  Gene Names: BRCA1, RNF53 EC: 2.3.2.27
Find proteins for P38398 (Homo sapiens) Explore P38398  Go to UniProtKB:  P38398
NIH Common Fund Data Resources
PHAROS:  P38398 GTEx:  ENSG00000012048

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NI	X	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.302 
• R-Value Work: 0.259 
• R-Value Observed: 0.262 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.844	α = 90
b = 114.844	β = 90
c = 122.111	γ = 120

Software Package:

Software Name	Purpose
SOLVE	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-07-26 
• Released Date: 2001-09-21 
Deposition Author(s): Williams, R.S., Green, R., Glover, J.N.M.

Revision History 

• Version 1.0: 2001-09-21
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-04-05
  Changes: Refinement description