3WKJ

The nucleosome containing human TSH2B

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.244 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Structure of human nucleosome containing the testis-specific histone variant TSH2B.

Urahama, T., Horikoshi, N., Osakabe, A., Tachiwana, H., Kurumizaka, H.

(2014) Acta Crystallogr F Struct Biol Commun 70: 444-449

  • DOI: https://doi.org/10.1107/S2053230X14004695
  • Primary Citation of Related Structures:  
    3WKJ

  • PubMed Abstract: 

    • The human histone H2B variant TSH2B is highly expressed in testis and may function in the chromatin transition during spermatogenesis. In the present study, the crystal structure of the human testis-specific nucleosome containing TSH2B was determined at 2 ...

    The human histone H2B variant TSH2B is highly expressed in testis and may function in the chromatin transition during spermatogenesis. In the present study, the crystal structure of the human testis-specific nucleosome containing TSH2B was determined at 2.8 Å resolution. A local structural difference between TSH2B and canonical H2B in nucleosomes was detected around the TSH2B-specific amino-acid residue Ser85. The TSH2B Ser85 residue does not interact with H4 in the nucleosome, but in the canonical nucleosome the H2B Asn84 residue (corresponding to the TSH2B Ser85 residue) forms water-mediated hydrogen bonds with the H4 Arg78 residue. In contrast, the other TSH2B-specific amino-acid residues did not induce any significant local structural changes in the TSH2B nucleosome. These findings may provide important information for understanding how testis-specific histone variants form nucleosomes during spermatogenesis.

    Organizational Affiliation: 

    Laboratory of Structural Biology, Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H3.1A, E139Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P68431 (Homo sapiens)
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Go to UniProtKB:  P68431
PHAROS:  P68431
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UniProt GroupP68431
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H4B, F106Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P62805 (Homo sapiens)
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PHAROS:  P62805
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UniProt GroupP62805
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2A type 1-B/EC, G133Homo sapiensMutation(s): 0 
Gene Names: H2A, H2AC4, H2AFM, HIST1H2AB, H2AC8, H2AFA, HIST1H2AE
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Find proteins for P04908 (Homo sapiens)
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PHAROS:  P04908
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UniProt GroupP04908
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2B type 1-AD, H130Homo sapiensMutation(s): 0 
Gene Names: HIST1H2BA, TSH2B, H2BC1
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Find proteins for Q96A08 (Homo sapiens)
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PHAROS:  Q96A08
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Entity ID: 5
MoleculeChainsLengthOrganismImage
DNA (145-MER)I, J146Homo sapiens
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.244 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 107.037α = 90
b = 109.926β = 90
c = 182.961γ = 90
Software Package:
Software NamePurpose
BSSdata collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-09
    Type: Initial release
  • Version 1.1: 2019-12-18
    Changes: Database references