Fraction of APh labeled filaments that were observed to also be labeled with Rh-rIgG or fluorescent secondary antibody to monoclonal CD45 antibody.

Data are given as mean ± SEM where SEM was estimated from the observed fraction, f, according to SEM = √f(1-f)/n where n was the total number of observed filaments in a given experiment. The data were obtained in assay solution as filament motility made it more straightforward to unequivocally associate all fluorescent molecules with filaments. Polyclonal antibodies (a-rIgG) were used if not otherwise stated.