Fig. 9.
Binding isotherms for association of cyto with 210 μM DOPG at low and high ionic strengths. Low ionic strength: 0.21 mM (filled circle), 4.35 mM (open circle), 10 mM (filled square), 16.9 mM (star), and 29.4 mM NaCl (open square); high ionic strength: 42 mM (filled triangle), 54.4 mM (open triangle), 79.4 mM (filled rhombus), and 104.4 mM NaCl (open rhombus). Global nonlinear least-squares fits of the isotherms as described in the text yielded the full lines. Two different stoichiometries, α = 11.9 and 4.9, were used for separate fits in the high and low ionic strength regimes, respectively. Taken from ref. (Heimburg and Marsh 1995) with permission