KDM1B, Lysine-specific histone demethylase 1B
Enzyme Classification 1.-.-.-
Also Known as
KDM1B_HUMAN, KDM1B, AOF1, C6orf193, LSD2
Histone demethylase that demethylates 'Lys-4' of histone H3, a specific tag for epigenetic transcriptional activation, thereby acting as a corepressor. Required for de novo DNA methylation of a subset of imprinted genes during oogenesis. Acts by oxidizing the substrate by FAD to generate the corresponding imine that is subsequently hydrolyzed. Demethylates both mono- and di-methylated 'Lys-4' of histone H3. Has no effect on tri-methylated 'Lys-4', mono-, di- or tri-methylated 'Lys-9', mono-, di- or tri-methylated 'Lys-27', mono-, di- or tri-methylated 'Lys-36' of histone H3, or on mono-, di- or tri-methylated 'Lys-20' of histone H4. Does not form a complex with RCOR1/CoREST (By similarity). Interacts with its cofactor GLYR1 at nucleosomes; this interaction stimulates H3K4me1 and H3K4me2 demethylation (PubMed:23260659).