(A) HRP conjugated anti-goat 2nd antibodies were tested with varying
concentrations of CRL-1912 monoclonal antibody coating the ELISA trays. Filled
circles, rabbit anti-goat antibody; open circle, donkey anti-goat antibody;
filled triangles, bovine anti-goat antibody. (B–D). Dilution of bovine
anti-goat antibody in the presence of CRL-1912 monoclonal antibody and MuLV p30
recombinant protein. Panel B, 1:5000 dilution; Panel C, 1:10,000 dilution; Panel
D, 1:20,000 dilution of bovine anti-goat antibody. Closed circles, absence of
CA; open circles, 20 ng/nl CA.