Structures of multiple Ca2+-binding sites in a K+ channel RCK domain
Pau, V.P., Smith, F.J., Taylor, A.B., Samakai, E., Callaghan, M.M., Abarca-Heidemann, K., Parfenova, L.V., Hart, P.J., Rothberg, B.S.(2011) Proc Natl Acad Sci U S A