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JMJD1A is a histone demethylase that specifically demethylates 'Lys-9' of histone H3, thereby playing a central role in histone code. It preferentially demethylates mono- and dimethylated H3 'Lys-9' residue, with a preference for dimethylated residue, while it has weak or no activity on trimethylated H3 'Lys-9'. Demethylation of Lys residue generates formaldehyde and succinate. JMJD1A is involved in hormone-dependent transcriptional activation, by participating in recruitment to androgen-receptor target genes, resulting in H3 'Lys-9' demethylation and transcriptional activation. It's also Involved in spermatogenesis by regulating expression of target genes such as PRM1 and TMP1 which are required for packaging and condensation of sperm chromatin. Involved in obesity resistance through regulation of metabolic genes such as PPARA and UCP1.
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Protein Aliases: [histone H3]-dimethyl-L-lysine(9) demethylase 3A; DKFZp686A24246; DKFZp686P07111; JmjC domain-containing histone demethylation protein 2A; jumonji C domain-containing histone demethylase 2A; Jumonji domain-containing protein 1A; lysine (K)-specific demethylase 3A; Lysine-specific demethylase 3A; testis-specific protein A
Gene Aliases: JHDM2A; JHMD2A; JMJD1; JMJD1A; KDM3A; KIAA0742; TSGA
UniProt ID: (Human) Q9Y4C1
Entrez Gene ID: (Human) 55818
Molecular Function: histone modifying enzyme