3AAD

Structure of the histone chaperone CIA/ASF1-double bromodomain complex linking histone modifications and site-specific histone eviction


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.240 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of the histone chaperone CIA/ASF1-double bromodomain complex linking histone modifications and site-specific histone eviction

Akai, Y.Adachi, N.Hayashi, Y.Eitoku, M.Sano, N.Natsume, R.Kudo, N.Tanokura, M.Senda, T.Horikoshi, M.

(2010) Proc Natl Acad Sci U S A 107: 8153-8158

  • DOI: https://doi.org/10.1073/pnas.0912509107
  • Primary Citation of Related Structures:  
    3AAD

  • PubMed Abstract: 

    Nucleosomes around the promoter region are disassembled for transcription in response to various signals, such as acetylation and methylation of histones. Although the interactions between histone-acetylation-recognizing bromodomains and factors involved in nucleosome disassembly have been reported, no structural basis connecting histone modifications and nucleosome disassembly has been obtained. Here, we determined at 3.3 A resolution the crystal structure of histone chaperone cell cycle gene 1 (CCG1) interacting factor A/antisilencing function 1 (CIA/ASF1) in complex with the double bromodomain in the CCG1/TAF1/TAF(II)250 subunit of transcription factor IID. Structural, biochemical, and biological studies suggested that interaction between double bromodomain and CIA/ASF1 is required for their colocalization, histone eviction, and pol II entry at active promoter regions. Furthermore, the present crystal structure has characteristics that can connect histone acetylation and CIA/ASF1-mediated histone eviction. These findings suggest that the molecular complex between CIA/ASF1 and the double bromodomain plays a key role in site-specific histone eviction at active promoter regions. The model we propose here is the initial structure-based model of the biological signaling from histone modifications to structural change of the nucleosome (hi-MOST model).


  • Organizational Affiliation

    Biomedicinal Information Research Center, National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription initiation factor TFIID subunit 1292Homo sapiensMutation(s): 0 
Gene Names: CCG1TAF1TAFII250
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P21675 (Homo sapiens)
Explore P21675 
Go to UniProtKB:  P21675
PHAROS:  P21675
GTEx:  ENSG00000147133 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP21675
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Histone chaperone ASF1AB,
C [auth D]
158Homo sapiensMutation(s): 0 
Gene Names: ASF1ACIA-I
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y294 (Homo sapiens)
Explore Q9Y294 
Go to UniProtKB:  Q9Y294
PHAROS:  Q9Y294
GTEx:  ENSG00000111875 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y294
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
D [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.240 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.12α = 90
b = 102.12β = 90
c = 271.92γ = 120
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2014-01-29
    Changes: Database references
  • Version 1.3: 2017-10-11
    Changes: Refinement description