(JmjC domain-containing histone demethylation protein 1 (JHD1))
Histone demethylase that specifically demethylates 'Lys- 36' of histone H3, thereby playing a central role in histone code. Does not demethylate H3 'Lys-4' nor 'Lys-79'. {ECO:0000269|PubMed:16362057}.