Abstract
MST4 is a member of the GCKIII kinases. The interaction between cerebral cavernous malformation 3 (CCM3) and GCKIII kinases plays a critical role in cardiovascular development and in cerebral cavernous malformations. The complex of CCM3 and the C-terminal domain of MST4 has been constructed, purified and crystallized, and a diffraction data set has been collected to 2.4 Å resolution. The crystal of the CCM3-MST4 C-terminal domain complex belonged to space group P4(1)2(1)2 or P4(3)2(1)2, with unit-cell parameters a = 69.10, b = 69.10, c = 117.57 Å.