Fig. 2.
Serial dilution of maternal plasma samples. Representative maternal antibody samples shown react at 37 and 73 or 39 and 73 kDa were diluted at 1:400, 1:800, 1:1,600 and 1:3,200 and were used to probe a western blot of 152 day gestation fetal Rhesus brain protein. Reactivity was observed at 1:1,600 dilution for all antigens