Sogabe Yuri, Matsumoto Takashi, Hashimoto Takuma, Kirii Yasuyuki, Sawa Masaaki, Kinoshita Takayoshi
Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.
Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan.
Bioorg Med Chem Lett. 2015 Feb 1;25(3):593-6. doi: 10.1016/j.bmcl.2014.12.011. Epub 2014 Dec 13.
5Z-7-Oxozeaenol (5Z7O) is a covalent bonding inhibitor against the several protein kinases (e.g., ERK2 and TAK1) that possess a free cysteine at the gatekeeper-2 position. In addition to this cysteine, MAP2K7 has three other cysteine residues that are candidate for covalent bonding by the inhibitor 5Z7O. The crystal structure of the MAP2K7/5Z7O complex revealed that the inhibitor binds to MAP2K7 at a cysteine residue located at the end of the hinge region and not at the gatekeeper-2 residue. The structural insights into the interaction of 5Z7O with MAP2K7 should aid the development of 5Z7O derivatives with improved potency and selectivity.
5Z-7-氧代泽兰醇(5Z7O)是一种针对几种在守门人-2位置具有游离半胱氨酸的蛋白激酶(如ERK2和TAK1)的共价结合抑制剂。除了这个半胱氨酸外,MAP2K7还有其他三个半胱氨酸残基,它们是抑制剂5Z7O共价结合的候选位点。MAP2K7/5Z7O复合物的晶体结构表明,该抑制剂在位于铰链区末端的一个半胱氨酸残基处与MAP2K7结合,而不是在守门人-2残基处。对5Z7O与MAP2K7相互作用的结构洞察应有助于开发具有更高效力和选择性的5Z7O衍生物。