cofactor:Fe(2+).,function:Histone demethylase that specifically demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-9', H3 'Lys-27', H3 'Lys-36', H3 'Lys-79' or H4 'Lys-20'. Demethylates trimethylated and dimethylated but not monomethylated H3 'Lys-4'. May stimulate transcription mediated by nuclear receptors. May be involved in transcriptional regulation of Hox proteins during cell differentiation. May participate in transcriptional repression of cytokines such as CXCL12.,similarity:Belongs to the JARID1 histone demethylase family.,similarity:Contains 1 ARID domain.,similarity:Contains 1 JmjC domain.,similarity:Contains 1 JmjN domain.,similarity:Contains 3 PHD-type zinc fingers.,subunit:Interacts with the viral protein-binding domain of RB1. Interacts with ESR1, MYC, MYCN and LMO2.,
Nucleus, nucleolus . Nucleus . Occupies promoters of genes involved in RNA metabolism and mitochondrial function. .
Epithelium,Eye,Testis,