Bmax 30% lower, Kd unchanged: p<0.05 for Bmax, one ratio per experiment 97.0%; for Kd, one ratio per experiment 4.5%; for Kd, global fit pooling wells 13.0% Kd 1.5 times higher, Bmax unchanged: p<0.05 for Bmax, one ratio per experiment 4.5%; for Kd, one ratio per experiment 98.4%; for Kd, global fit pooling wells 100.0%