A0A178VZH7 · A0A178VZH7_ARATH
- ProteinHistone H2B
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids151 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
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.
GO annotations
all annotations | all molecular function | nucleotide binding | molecular_function | nucleic acid binding | dna binding | chromatin binding | dna-binding transcription factor activity | rna binding | cytoskeletal motor activity | catalytic activity | nuclease activity | signaling receptor binding | structural molecule activity | transporter activity | binding | protein binding | translation factor activity, rna binding | lipid binding | kinase activity | transferase activity | hydrolase activity | oxygen binding | enzyme regulator activity | carbohydrate binding | signaling receptor activity | translation regulator activity | transcription regulator activity | other molecular function | all biological process | carbohydrate metabolic process | generation of precursor metabolites and energy | nucleobase-containing compound metabolic process | dna metabolic process | translation | lipid metabolic process | transport | response to stress | cell cycle | cell communication | signal transduction | cell-cell signaling | multicellular organism development | circadian rhythm | biological_process | metabolic process | catabolic process | biosynthetic process | response to light stimulus | response to external stimulus | tropism | response to biotic stimulus | response to abiotic stimulus | response to endogenous stimulus | embryo development | post-embryonic development | fruit ripening | abscission | pollination | flower development | cellular process | programmed cell death | photosynthesis | cellular component organization | cell growth | protein metabolic process | cellular homeostasis | secondary metabolic process | reproductive process | cell differentiation | protein modification process | growth | epigenetic regulation of gene expression | response to chemical | anatomical structure development | regulation of molecular function | other biological process | all cellular component | cellular_component | extracellular region | cell wall | intracellular anatomical structure | nucleus | nuclear envelope | nucleoplasm | nucleolus | cytoplasm | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | cytosol | ribosome | cytoskeleton | plasma membrane | chloroplast | plastid | thylakoid | membrane | external encapsulating structure | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | nucleosome | |
Cellular Component | nucleus | |
Molecular Function | DNA binding | |
Molecular Function | protein heterodimerization activity | |
Molecular Function | structural constituent of chromatin |
Keywords
- Molecular function
Names & Taxonomy
Protein names
- Recommended nameHistone H2B
Gene names
Organism names
- Strains
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis
Accessions
- Primary accessionA0A178VZH7
- Secondary accessions
Proteomes
Genome annotation databases
Subcellular Location
PTM/Processing
Keywords
- PTM
Expression
Gene expression databases
Interaction
Subunit
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.
Structure
Family & Domains
Features
Showing features for region, domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 1-54 | Disordered | ||||
Sequence: MAPKAGKKPAEKKPAEKAPAEEEKVAEKAPAEKKPKAGKKLPKEAVTGGVEKKK | ||||||
Domain | 13-127 | Histone H2A/H2B/H3 | ||||
Sequence: KPAEKAPAEEEKVAEKAPAEKKPKAGKKLPKEAVTGGVEKKKKRVKKSTETYKIYIFKVLKQVHPDIGISSKAMGIMNSFINDIFEKLAQEASKLARYNKKPTITSREIQTAVRL |
Sequence similarities
Belongs to the histone H2B family.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length151
- Mass (Da)16,529
- Last updated2016-09-07 v1
- Checksum2A79E7172E52D9CE
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CACSHJ010000088 EMBL· GenBank· DDBJ | CAA0372978.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
LR881467 EMBL· GenBank· DDBJ | CAD5319783.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
LUHQ01000002 EMBL· GenBank· DDBJ | OAP11667.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CACRSJ010000105 EMBL· GenBank· DDBJ | VYS53819.1 EMBL· GenBank· DDBJ | Genomic DNA |