9398511 , Related PDB id: 1AVH
- Kaneko N, Ago H, Matsuda R, Inagaki E, Miyano M
- Crystal structure of annexin V with its ligand K-201 as a calcium channel activity inhibitor.
- J Mol Biol. 1997 Nov 21;274(1):16-20.
- The crystal structure of recombinant human annexin V complexed with K-201, an inhibitor of the calcium ion channel activity of annexin V, was solved at 3.0 A by molecular replacement including the apo and high-calcium forms. K-201 was bound at the hinge region cavity formed by the N-terminal strand and domains II, III and IV, at the side opposite the calcium and membrane-binding surface, in an L-shaped conformation. Based on the complex and other annexin structures, K-201 is proposed to restrain the hinge movement of annexin V in an allosteric manner, resulting in the inhibition of calcium movement across the annexin V molecule.