K+ channel selectivity depends on kinetic as well as thermodynamic factors.

Grabe M, Bichet D, Qian X, Jan YN, Jan LY. K+ channel selectivity depends on kinetic as well as thermodynamic factors. Proc Natl Acad Sci U S A. 2006 Sep 26; 103(39):14361-6.

2006
https://researcherprofiles.org/profile/1451868
16983068

Grabe M, Bichet D, Qian X, Jan YN, Jan LY