5BT1

histone chaperone Hif1 playing with histone H2A-H2B dimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insights into the Association of Hif1 with Histones H2A-H2B Dimer and H3-H4 Tetramer

Zhang, M.Liu, H.Gao, Y.Zhu, Z.Chen, Z.Zheng, P.Xue, L.Li, J.Teng, M.Niu, L.

(2016) Structure 24: 1810-1820

  • DOI: 10.1016/j.str.2016.08.001
  • Primary Citation of Related Structures:  
    5BT1

  • PubMed Abstract: 
  • Histone chaperones are critical for guiding specific post-transcriptional modifications of histones, safeguarding the histone deposition (or disassociation) of nucleosome (dis)assembly, and regulating chromatin structures to change gene activities. H ...

    Histone chaperones are critical for guiding specific post-transcriptional modifications of histones, safeguarding the histone deposition (or disassociation) of nucleosome (dis)assembly, and regulating chromatin structures to change gene activities. HAT1-interacting factor 1 (Hif1) has been reported to be an H3-H4 chaperone and to be involved in telomeric silencing and nucleosome (dis)assembly. However, the structural basis for the interaction of Hif1 with histones remains unknown. Here, we report the complex structure of Hif1 binding to H2A-H2B for uncovering the chaperone specificities of Hif1 on binding to both the H2A-H2B dimer and the H3-H4 tetramer. Our findings reveal that Hif1 interacts with the H2A-H2B dimer and the H3-H4 tetramer via distinct mechanisms, suggesting that Hif1 is a pivotal scaffold on alternate binding of H2A-H2B and H3-H4. These specificities are conserved features of the Sim3-Hif1-NASP interrupted tetratricopeptide repeat proteins, which provide clues for investigating their potential roles in nucleosome (dis)assembly.


    Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China; Key Laboratory of Structural Biology, Chinese Academy of Sciences, Hefei, Anhui 230026, People's Republic of China. Electronic address: lwniu@ustc.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HAT1-interacting factor 1AB393Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: HIF1YLL022CL1205
Find proteins for Q12373 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q12373 
Go to UniProtKB:  Q12373
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2A.1C143Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: HTA1H2A1SPT11YDR225WYD9934.10
Find proteins for P04911 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P04911 
Go to UniProtKB:  P04911
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2B.1D142Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: HTB1H2B1SPT12YDR224CYD9934.09C
Find proteins for P02293 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P02293 
Go to UniProtKB:  P02293
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.673α = 90
b = 48.363β = 107.05
c = 160.706γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data scaling
PHASERphasing
PDB_EXTRACTdata extraction
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2012CB917200
Ministry of Science and Technology (China)China2011CBA00800
Chinese National Natural Science FoundationChina31130018
Chinese National Natural Science FoundationChina31170726

Revision History 

  • Version 1.0: 2016-10-26
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Data collection, Database references, Derived calculations
  • Version 1.2: 2017-10-18
    Changes: Author supporting evidence