9SO9 | pdb_00009so9

BRCA1-A complex bound to K63-oligoUbATA - closed form StateC*

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental
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wwPDB Validation 3D Report Full Report

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This is version 1.0 of the entry. See complete history. 

Literature

A ubiquitin chain-feeding mechanism for BRCA1-A

Murachelli, A.G., El Oualid, F., Sixma, T.K.

(2026) bioRxiv 

Macromolecule Content 

  • Total Structure Weight: 394.69 kDa 
  • Atom Count: 21,051 
  • Modeled Residue Count: 2,626 
  • Deposited Residue Count: 3,484 
  • Unique protein chains: 8

Macromolecules

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Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
BRCA1-A complex subunit Abraxas 1
A, F
409Homo sapiensMutation(s): 0 
Gene Names: ABRAXAS1, ABRA1, CCDC98, FAM175A, UNQ496/PRO1013
UniProt & NIH Common Fund Data Resources
Find proteins for Q6UWZ7 (Homo sapiens)
Explore Q6UWZ7 
Go to UniProtKB:  Q6UWZ7
PHAROS:  Q6UWZ7
GTEx:  ENSG00000163322 
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UniProt GroupQ6UWZ7
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Reference Sequence
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Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
Lys-63-specific deubiquitinase BRCC36
B, G
316Homo sapiensMutation(s): 0 
Gene Names: BRCC3, BRCC36, C6.1A, CXorf53
EC: 3.4.19
UniProt & NIH Common Fund Data Resources
Find proteins for P46736 (Homo sapiens)
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PHAROS:  P46736
GTEx:  ENSG00000185515 
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UniProt GroupP46736
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Reference Sequence
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Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
BRISC and BRCA1-A complex member 2
C, H
383Homo sapiensMutation(s): 0 
Gene Names: BABAM2, BRCC45, BRE
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NXR7 (Homo sapiens)
Explore Q9NXR7 
Go to UniProtKB:  Q9NXR7
PHAROS:  Q9NXR7
GTEx:  ENSG00000158019 
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UniProt GroupQ9NXR7
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Reference Sequence
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Entity ID: 4
MoleculeChains  Sequence LengthOrganismDetailsImage
BRISC and BRCA1-A complex member 1
D, I
349Homo sapiensMutation(s): 0 
Gene Names: BABAM1, C19orf62, MERIT40, NBA1, HSPC142
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NWV8 (Homo sapiens)
Explore Q9NWV8 
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PHAROS:  Q9NWV8
GTEx:  ENSG00000105393 
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UniProt GroupQ9NWV8
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Reference Sequence
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Entity ID: 5
MoleculeChains  Sequence LengthOrganismDetailsImage
BRCA1-A complex subunit RAP80
E, J
171Homo sapiensMutation(s): 0 
Gene Names: UIMC1, RAP80, RXRIP110
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Find proteins for Q96RL1 (Homo sapiens)
Explore Q96RL1 
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PHAROS:  Q96RL1
GTEx:  ENSG00000087206 
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UniProt GroupQ96RL1
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Reference Sequence
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Entity ID: 6
MoleculeChains  Sequence LengthOrganismDetailsImage
UbiquitinK [auth L]76Homo sapiensMutation(s): 0 
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Find proteins for P0CG48 (Homo sapiens)
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PHAROS:  P0CG48
GTEx:  ENSG00000150991 
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UniProt GroupP0CG48
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Reference Sequence
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Entity ID: 7
MoleculeChains  Sequence LengthOrganismDetailsImage
Polyubiquitin-CL [auth M]76Homo sapiensMutation(s): 1 
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Find proteins for P0CG48 (Homo sapiens)
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PHAROS:  P0CG48
GTEx:  ENSG00000150991 
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UniProt GroupP0CG48
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Reference Sequence
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Entity ID: 8
MoleculeChains  Sequence LengthOrganismDetailsImage
Polyubiquitin-CM [auth N]76Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P0CG48 (Homo sapiens)
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PHAROS:  P0CG48
GTEx:  ENSG00000150991 
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UniProt GroupP0CG48
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Reference Sequence

Small Molecules

Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
DAB
Query on DAB		L [auth M]L-PEPTIDE LINKINGC4 H10 N2 O2ALA
A1JPL
Query on A1JPL		M [auth N]L-PEPTIDE LINKINGC4 H9 N O2 S

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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTServalcat
MODEL REFINEMENTPHENIX1.21
RECONSTRUCTIONcryoSPARC4

Structure Validation

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Entry History 

& Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Oncode InstituteNetherlands--
Netherlands Organisation for Scientific Research (NWO)NetherlandsOCENW.M.21.288

Revision History  (Full details and data files)

  • Version 1.0: 2026-06-17
    Type: Initial release