Cell Senescence Entries for HIRA

Cell Types
Lung fibroblast
Cell Lines
WI-38
Cancer Cell?
No
Method
Overexpression
Type of senescence
Oncogene-induced
Senescence Effect
Induces
Primary Reference
Zhang et al. (2005) Formation of MacroH2A-containing senescence-associated heterochromatin foci and senescence driven by ASF1a and HIRA. Dev Cell 8(1)19-30 (PubMed)

HIRA Gene Information

HGNC symbol
HIRA 
Aliases
DGCR1; TUP1; TUPLE1 
Common name
histone cell cycle regulator 
Entrez Id
7290
Description
This gene encodes a histone chaperone that preferentially places the variant histone H3.3 in nucleosomes. Orthologs of this gene in yeast, flies, and plants are necessary for the formation of transcriptionally silent heterochomatin. This gene plays an important role in the formation of the senescence-associated heterochromatin foci. These foci likely mediate the irreversible cell cycle changes that occur in senescent cells. It is considered the primary candidate gene in some haploinsufficiency syndromes such as DiGeorge syndrome, and insufficient production of the gene may disrupt normal embryonic development. [provided by RefSeq, Jul 2008].

HIRA Ontologies

Gene Ontology
Process: GO:6355; regulation of transcription, DNA-templated
GO:6325; chromatin organization
GO:6351; transcription, DNA-templated
GO:45892; negative regulation of transcription, DNA-templated
GO:6357; regulation of transcription by RNA polymerase II
GO:9653; anatomical structure morphogenesis
GO:6336; DNA replication-independent nucleosome assembly
GO:1649; osteoblast differentiation
GO:7369; gastrulation
GO:42692; muscle cell differentiation
Cellular component: GO:5634; nucleus
GO:32991; protein-containing complex
GO:5654; nucleoplasm
GO:785; chromatin
GO:16605; PML body
GO:70062; extracellular exosome
GO:417; HIR complex
Function: GO:5515; protein binding
GO:3714; transcription corepressor activity
GO:31491; nucleosome binding
GO:61629; RNA polymerase II-specific DNA-binding transcription factor binding
GO:42393; histone binding
Show all GO terms

Homologs of HIRA in Model Organisms

Caenorhabditis elegans
K10D2.1
Danio rerio
hira
Drosophila melanogaster
Hira
Mus musculus
Hira
Rattus norvegicus
LOC100911837
Saccharomyces cerevisiae
HIR2
Schizosaccharomyces pombe
hip1

In other databases

GenAge model organism genes
  • A homolog of this gene for Saccharomyces cerevisiae is present as HIR2

External links

OMIM
600237
Ensembl
ENSG00000100084
Entrez Gene
7290
UniGene
474206
1000 Genomes
1000 Genomes
HPRD
GenAtlas
HIRA
GeneCards
HIRA