5Z-7-Oxozeaenol covalently binds to MAP2K7 at Cys218 in an unprecedented manner.
Sogabe, Y., Matsumoto, T., Hashimoto, T., Kirii, Y., Sawa, M., Kinoshita, T.(2015) Bioorg Med Chem Lett 25: 593-596
- PubMed: 25529738 
- DOI: https://doi.org/10.1016/j.bmcl.2014.12.011
- Primary Citation of Related Structures:  
3WZU - PubMed Abstract: 
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.
Organizational Affiliation: 
Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.