Enzyme kinetic studies of histone demethylases KDM4C and KDM6A: Towards understanding selectivity of inhibitors targeting oncogenic histone demethylases
作者:Jan B.L. Kristensen、Anders L. Nielsen、Lars Jørgensen、Line H. Kristensen、Charlotte Helgstrand、Lina Juknaite、Jesper L. Kristensen、Jette S. Kastrup、Rasmus P. Clausen、Lars Olsen、Michael Gajhede
DOI:10.1016/j.febslet.2011.05.023
日期:2011.6.23
To investigate ligand selectivity between the oncogenic KDM4C and tumor repressor protein KDM6A histone demethylases, KDM4C and KDM6A were enzymatically characterized, and subsequently, four compounds were tested for inhibitory effects. 2,4‐dicarboxypyridine and (R)‐N‐oxalyl‐O‐benzyltyrosine (3) are both known to bind to a close KDM4C homolog and 3 binds in the part of the cavity that accommodates
为了研究致癌 KDM4C 和肿瘤抑制蛋白 KDM6A 组蛋白去甲基化酶之间的配体选择性,对 KDM4C 和 KDM6A 进行了酶学表征,随后,测试了四种化合物的抑制作用。已知 2,4-二羧基吡啶和 (R)-N-草酰-O-苄基酪氨酸 (3) 均与紧密的 KDM4C 同源物结合,并且 3 结合在容纳组蛋白 3 位置 11 侧链的空腔部分. 抑制测量显示 KDM4C 和 KDM6A 之间具有显着的选择性。这表明尽管活性位点拓扑结构非常相似,但即使使用小分子配体也可以获得 Jumonji 家族组蛋白去甲基化酶之间的选择性。