Macromolecule Content

• Total Structure Weight: 26.25 kDa 
• Atom Count: 1573 
• Residue Count: 200 
• Unique protein chains: 2

1JM7

Solution structure of the BRCA1/BARD1 RING-domain heterodimer

• DOI: 10.2210/pdb1JM7/pdb

• Classification: ANTITUMOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2001-07-17 Released: 2001-10-03 
• Deposition Author(s): Brzovic, P.S., Rajagopal, P., Hoyt, D.W., King, M.-C., Klevit, R.E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 14 
• Selection Criteria: structures with the least restraint violations, structures with the lowest energy 

Literature

Structure of a BRCA1-BARD1 heterodimeric RING-RING complex.

Brzovic, P.S., Rajagopal, P., Hoyt, D.W., King, M.C., Klevit, R.E.

(2001) Nat Struct Biol 8: 833-837

• PubMed: 11573085 
• DOI: 10.1038/nsb1001-833
• Primary Citation of Related Structures:  
  1JM7


• PubMed Abstract: 
  

The RING domain of the breast and ovarian cancer tumor suppressor BRCA1 interacts with multiple cognate proteins, including the RING protein BARD1. Proper function of the BRCA1 RING domain is critical, as evidenced by the many cancer-predisposing mutations found within this domain. We present the solution structure of the heterodimer formed between the RING domains of BRCA1 and BARD1. Comparison with the RING homodimer of the V(D)J recombination-activating protein RAG1 reveals the structural diversity of complexes formed by interactions between different RING domains. The BRCA1-BARD1 structure provides a model for its ubiquitin ligase activity, illustrates how the BRCA1 RING domain can be involved in associations with multiple protein partners and provides a framework for understanding cancer-causing mutations at the molecular level.

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Organizational Affiliation: 

Department of Biochemistry and Biomolecular Structure Center, University of Washington, Seattle, Washington 98195-7742, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BREAST CANCER TYPE 1 SUSCEPTIBILITY PROTEIN	A	112	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

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BRCA1-ASSOCIATED RING DOMAIN PROTEIN 1	B	117	Homo sapiens	Mutation(s): 0  Gene Names: BARD1 EC: 2.3.2.27
Find proteins for Q99728 (Homo sapiens) Explore Q99728  Go to UniProtKB:  Q99728
NIH Common Fund Data Resources
PHAROS  Q99728 GTEx  ENSG00000138376

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 14 
• Selection Criteria: structures with the least restraint violations, structures with the lowest energy 
• OLDERADO: 1JM7 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-07-17 
• Released Date: 2001-10-03 
Deposition Author(s): Brzovic, P.S., Rajagopal, P., Hoyt, D.W., King, M.-C., Klevit, R.E.

Revision History 

• Version 1.0: 2001-10-03
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance