Division of Structural Biology, Division of Signal Transduction, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0101, Japan.
The effector domain of human protein serine/threonine kinase N (PKN), an effector protein for the small GTP-binding protein Rho, was expressed and purified for protein characterization and crystallization in a complex form with human RhoA. In solution, RhoA binds to the PKN effector domain with 1:2 stoichiometry in a GTP-dependent manner. The obtained complex crystals diffract to 2.2 A resolution. Copyright 1999 Academic Press.