FIG. 2.

Competition between anti-HgbA MAbs. Purified HgbA was immobilized onto an NC membrane (in duplicate) and probed with each of the iodinated MAbs in the absence (none) or presence of a 50-fold excess of each unlabeled MAb. After washing of the unbound MAbs, the dot blots were exposed to film to detect binding to HgbA by the labeled MAb.