6ZN6

Protein polybromo-1 (PB1 BD2) Bound To MW278


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.02 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Pan-SMARCA/PB1 Bromodomain Inhibitors and Their Role in Regulating Adipogenesis.

Wanior, M.Preuss, F.Ni, X.Kramer, A.Mathea, S.Gobel, T.Heidenreich, D.Simonyi, S.Kahnt, A.S.Joerger, A.C.Knapp, S.

(2020) J Med Chem 63: 14680-14699

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c01242
  • Primary Citation of Related Structures:  
    6ZN6, 6ZNV, 6ZS2, 6ZS3, 6ZS4

  • PubMed Abstract: 

    Accessibility of the human genome is modulated by the ATP-driven SWI/SNF chromatin remodeling multiprotein complexes BAF (BRG1/BRM-associated factor) and PBAF (polybromo-associated BAF factor), which involves reading of acetylated histone tails by the bromodomain-containing proteins SMARCA2 (BRM), SMARCA4 (BRG1), and polybromo-1. Dysregulation of chromatin remodeling leads to aberrant cell proliferation and differentiation. Here, we have characterized a set of potent and cell-active bromodomain inhibitors with pan-selectivity for canonical family VIII bromodomains. Targeted SWI/SNF bromodomain inhibition blocked the expression of key genes during adipogenesis, including the transcription factors PPARγ and C/EBPα, and impaired the differentiation of 3T3-L1 murine fibroblasts into adipocytes. Our data highlight the role of SWI/SNF bromodomains in adipogenesis and provide a framework for the development of SWI/SNF bromodomain inhibitors for indirect targeting of key transcription factors regulating cell differentiation.


  • Organizational Affiliation

    Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein polybromo-1
A, B
116Homo sapiensMutation(s): 0 
Gene Names: PBRM1BAF180PB1
UniProt & NIH Common Fund Data Resources
Find proteins for Q86U86 (Homo sapiens)
Explore Q86U86 
Go to UniProtKB:  Q86U86
PHAROS:  Q86U86
GTEx:  ENSG00000163939 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ86U86
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.02 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.525α = 90
b = 73.193β = 90
c = 105.024γ = 90
Software Package:
Software NamePurpose
xia2data reduction
Aimlessdata scaling
PHASERphasing
REFMACrefinement
PHENIXrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-08-26
    Type: Initial release
  • Version 1.1: 2021-03-10
    Changes: Database references
  • Version 1.2: 2021-05-05
    Changes: Refinement description
  • Version 1.3: 2024-01-31
    Changes: Data collection, Database references, Refinement description