2RVQ

Solution structure of the isolated histone H2A-H2B heterodimer


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 10000 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Solution structure of the isolated histone H2A-H2B heterodimer

Moriwaki, Y.Yamane, T.Ohtomo, H.Ikeguchi, M.Kurita, J.Sato, M.Nagadoi, A.Shimojo, H.Nishimura, Y.

(2016) Sci Rep 6: 24999-24999

  • DOI: 10.1038/srep24999

  • PubMed Abstract: 
  • During chromatin-regulated processes, the histone H2A-H2B heterodimer functions dynamically in and out of the nucleosome. Although detailed crystal structures of nucleosomes have been established, that of the isolated full-length H2A-H2B heterodimer ...

    During chromatin-regulated processes, the histone H2A-H2B heterodimer functions dynamically in and out of the nucleosome. Although detailed crystal structures of nucleosomes have been established, that of the isolated full-length H2A-H2B heterodimer has remained elusive. Here, we have determined the solution structure of human H2A-H2B by NMR coupled with CS-Rosetta. H2A and H2B each contain a histone fold, comprising four α-helices and two β-strands (α1-β1-α2-β2-α3-αC), together with the long disordered N- and C-terminal H2A tails and the long N-terminal H2B tail. The N-terminal αN helix, C-terminal β3 strand, and 310 helix of H2A observed in the H2A-H2B nucleosome structure are disordered in isolated H2A-H2B. In addition, the H2A α1 and H2B αC helices are not well fixed in the heterodimer, and the H2A and H2B tails are not completely random coils. Comparison of hydrogen-deuterium exchange, fast hydrogen exchange, and {(1)H}-(15)N hetero-nuclear NOE data with the CS-Rosetta structure indicates that there is some conformation in the H2A 310 helical and H2B Lys11 regions, while the repression domain of H2B (residues 27-34) exhibits an extended string-like structure. This first structure of the isolated H2A-H2B heterodimer provides insight into its dynamic functions in chromatin.


    Organizational Affiliation

    Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone H2A type 1-B/E
C
133Homo sapiensMutation(s): 0 
Gene Names: HIST1H2AB, HIST1H2AE (H2AFM, H2AFA)
Find proteins for P04908 (Homo sapiens)
Go to Gene View: HIST1H2AB HIST1H2AE
Go to UniProtKB:  P04908
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone H2B type 1-J
D
129Homo sapiensMutation(s): 0 
Gene Names: HIST1H2BJ (H2BFR)
Find proteins for P06899 (Homo sapiens)
Go to Gene View: HIST1H2BJ
Go to UniProtKB:  P06899
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 10000 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-05-25
    Type: Initial release