the inside-out preference in the absence of added metal cations is gradually reduced as the k+ concentration is raised to 200 mm until a slight right-side-out preference may be exhibited divalent cations ( denoted 72+ ; ca2+ , mg2+ and mn2+ ) induce inside-out curvature at very low concentrations , right-side-out curvature at intermediate concentrations , and inside-out curvature again at high ones .
C0007447
cations
C0007448
divalent cations