YUKA1 is a potent and cell-permeable Lysine demethylase 5A inhibitor (IC50: 2.66 μM) and less active on KDM5C (IC50, 7.12 μM). YUKA1 is inactive on KDM5B, KDM6A, or KDM6B.
GSK-J2 sodium, the sodium form of GSK-J2, is an isomer of GSK-J1 and lacks specific activity. GSK-J1 is a potent inhibitor of H3K27me3 me2-demethylases JMJD3 KDM6B and UTX KDM6A [1].