JMJD3 is a histone demethylase that specifically demethylates trimethylated and dimethylated 'Lys-27' of histone H3, thereby playing a central role in histone code. JMJD3 is also important for the regulation of posterior development by regulating HOX gene expression. JMJD3 is involved in inflammatory response by participating in macrophage differentiation in case of inflammation by regulating gene expression and macrophage differentiation. It has also been shown to be essential to mammalian epidermal differentiation and is upregulated in prostate cancer.
JMJD3 antibodies are useful tools for epigenetics research and specifically for histone modification studies.