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Histone H2A - P84051 (H2A_DROME)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Number of PDB entries for P84051: 3
 
Function
Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. (data source: UniProt  )
Subunit structure
The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. (data source: UniProt  )
UniProtKB:
Species: 
Gene names: His2A H2a His2A:CG31618 CG31618 His2A:CG33808 CG33808 His2A:CG33814 CG33814 His2A:CG33817 CG33817 His2A:CG33820 CG33820 His2A:CG33823 CG33823 His2A:CG33826 CG33826 His2A:CG33829 CG33829 His2A:CG33832 CG33832 His2A:CG33835 CG33835 His2A:CG33838 CG33838 His2A:CG33841 CG33841 His2A:CG33844 CG33844 His2A:CG33847 CG33847 His2A:CG33850 CG33850 His2A:CG33862 CG33862 His2A:CG33865 CG33865
Length:
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Data origin/color codes
The vertical color bar on the left side indicates data provenance.
Data in green originates from UniProtKB  
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
Data in red indicates combined ranges of Homology Models from SBKB   and the Protein Model Portal  

The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).