Fig. 1.
Binding of 125I-vWF and 125I-VCL to heparin. Heparin-agarose beads were incubated for 1 hour at 20°C with 125I-vWF (A) or 125I-VCL (B) in the presence of varying concentrations of unlabeled vWF (▪) or VCL (□). The mean ± SEM of percentage of bound radioactivity was calculated as described in Materials and Methods for 3 separate experiments.