A3LXD5 · H31_PICST
- ProteinHistone H3.1/H3.2
- GeneHHT1; HHT2
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids136 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
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 | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | 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 | |
Biological Process | rRNA transcription |
Keywords
- Molecular function
Names & Taxonomy
Protein names
- Recommended nameHistone H3.1/H3.2
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Fungi > Dikarya > Ascomycota > Saccharomycotina > Saccharomycetes > Saccharomycetales > Debaryomycetaceae > Scheffersomyces
Accessions
- Primary accessionA3LXD5
Proteomes
Subcellular Location
PTM/Processing
Features
Showing features for initiator methionine, chain, modified residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Initiator methionine | 1 | Removed | ||||
Sequence: M | ||||||
Chain | PRO_0000297753 | 2-136 | Histone H3.1/H3.2 | |||
Sequence: ARTKQTARKSTGGKAPRKQLASKAARKSAPSTGGVKKPHRYKPGTVALREIRRFQKSTELLIRKLPFQRLVREIAQDFKTDLRFQSSAIGALQESVEAYLVSLFEDTNLCAIHAKRVTIQKKDIQLARRLRGERS | ||||||
Modified residue | 5 | N6,N6,N6-trimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 5 | N6,N6-dimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 5 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 10 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 10 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 11 | Phosphoserine | ||||
Sequence: S | ||||||
Modified residue | 15 | N6,N6-dimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 15 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 19 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 19 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 24 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 24 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 28 | N6,N6,N6-trimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 28 | N6,N6-dimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 28 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 28 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 37 | N6,N6,N6-trimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 37 | N6,N6-dimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 37 | N6-acetyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 37 | N6-methyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 57 | N6-acetyllysine | ||||
Sequence: K | ||||||
Modified residue | 65 | N6-acetyllysine | ||||
Sequence: K | ||||||
Modified residue | 80 | N6,N6,N6-trimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 80 | N6,N6-dimethyllysine; alternate | ||||
Sequence: K | ||||||
Modified residue | 80 | N6-methyllysine; alternate | ||||
Sequence: K |
Post-translational modification
Phosphorylated to form H3S10ph. H3S10ph promotes subsequent H3K14ac formation and is required for transcriptional activation through TBP recruitment to the promoters (By similarity).
Mono-, di- and trimethylated by the COMPASS complex to form H3K4me1/2/3. H3K4me activates gene expression by regulating transcription elongation and plays a role in telomere length maintenance. H3K4me enrichment correlates with transcription levels, and occurs in a 5' to 3' gradient with H3K4me3 enrichment at the 5'-end of genes, shifting to H3K4me2 and then H3K4me1. Methylated by SET2 to form H3K36me. H3K36me represses gene expression. Methylated by DOT1 to form H3K79me. H3K79me is required for association of SIR proteins with telomeric regions and for telomeric silencing. The COMPASS-mediated formation of H3K4me2/3 and the DOT1-mediated formation of H3K79me require H2BK123ub1 (By similarity).
Acetylation of histone H3 leads to transcriptional activation. H3K14ac formation by GCN5 is promoted by H3S10ph. H3K14ac can also be formed by ESA1. H3K56ac formation occurs predominantly in newly synthesized H3 molecules during G1, S and G2/M of the cell cycle and may be involved in DNA repair (By similarity).
Keywords
- PTM
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.
Protein-protein interaction databases
Structure
Family & Domains
Features
Showing features for region.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 1-43 | Disordered | ||||
Sequence: MARTKQTARKSTGGKAPRKQLASKAARKSAPSTGGVKKPHRYK |
Sequence similarities
Belongs to the histone H3 family.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length136
- Mass (Da)15,388
- Last updated2007-04-03 v1
- ChecksumA613633B480AC67A
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000500 EMBL· GenBank· DDBJ | ABN67439.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CP000500 EMBL· GenBank· DDBJ | ABN67869.1 EMBL· GenBank· DDBJ | Genomic DNA |