3FA2

Crystal Structure of the BRCA1 Associated Ring Domain (BARD1) Tandem BRCT Domains

• PDB DOI: https://doi.org/10.2210/pdb3FA2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-11-14 Released: 2008-12-23 
• Deposition Author(s): Fox III, D., Le Trong, I., Stenkamp, R.E., Klevit, R.E.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.298 
• R-Value Work: 0.222 
• R-Value Observed: 0.226 

Literature

Crystal Structure of the BRCA1 Associated Ring Domain (BARD1) Tandem BRCT Domains

Fox III, D., Le Trong, I., Stenkamp, R.E., Klevit, R.E.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 50.48 kDa 
• Atom Count: 3,439 
• Modelled Residue Count: 408 
• Deposited Residue Count: 436 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BRCA1-associated RING domain protein 1	A, B	218	Homo sapiens	Mutation(s): 0  Gene Names: BARD1
UniProt & NIH Common Fund Data Resources
Find proteins for Q99728 (Homo sapiens) Explore Q99728  Go to UniProtKB:  Q99728
PHAROS:  Q99728 GTEx:  ENSG00000138376

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	C [auth A], E [auth B], F [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
GOL	D [auth A], G [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.298 
• R-Value Work: 0.222 
• R-Value Observed: 0.226 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.979	α = 90
b = 67.466	β = 99.2
c = 86.783	γ = 90

Software Package:

Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
REFMAC	refinement
d*TREK	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-12-23 
Deposition Author(s): Fox III, D., Le Trong, I., Stenkamp, R.E., Klevit, R.E.

Revision History  

• Version 1.0: 2008-12-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.2: 2018-01-24
  Changes: Database references, Structure summary
• Version 1.3: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description