1W4S

Crystal structure of the proximal BAH domain of polybromo


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

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This is version 1.1 of the entry. See complete history


Literature

Crystal Structure of the Proximal Bah Domain of the Polybromo Protein

Oliver, A.W.Jones, S.A.Roe, S.M.Matthews, S.Goodwin, G.H.Pearl, L.H.

(2005) Biochem J 389: 657

  • DOI: https://doi.org/10.1042/BJ20050310
  • Primary Citation of Related Structures:  
    1W4S

  • PubMed Abstract: 

    The BAH domain (bromo-associated homology domain) was first identified from a repeated motif found in the nuclear protein polybromo--a large (187 kDa) modular protein comprising six bromodomains, two BAH domains and an HMG box. To date, the BAH domain has no ascribed function, although it is found in a wide range of proteins that contain additional domains involved in either transcriptional regulation (e.g. SET, PHD and bromodomain) and/or DNA binding (HMG box and AT hook). The molecular function of polybromo itself also remains unclear, but it has been identified as a key component of an SWI/SNF (switching/sucrose non-fermenting)-related, ATP-dependent chromatin-remodelling complex PBAF (polybromo, BRG1-associated factors; also known as SWI/SNF-B or SWI/SNFbeta). We present in this paper the crystal structure of the proximal BAH domain from chicken polybromo (BAH1), at a resolution of 1.6 A (1 A=0.1 nm). Structure-based sequence analysis reveals several features that may be involved in mediating protein-protein interactions.


  • Organizational Affiliation

    CR-UK DNA Repair Enzymes Group, Section of Structural Biology, The Institute of Cancer Research, 237 Fulham Road, Chelsea, London SW3 6JB, UK. antony.oliver@icr.ac.uk


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
POLYBROMO 1 PROTEIN174Gallus gallusMutation(s): 0 
UniProt
Find proteins for Q90941 (Gallus gallus)
Explore Q90941 
Go to UniProtKB:  Q90941
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ90941
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download Ideal Coordinates CCD File 
B [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.598α = 90
b = 57.712β = 90
c = 70.377γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance