Cell binding studies. Flow cytometric analysis showing the mean fluorescence index for anti-mCD45 Ab, DOTA-Ab, and Ab-SA conjugates with peripheral blood mononuclear cells (PBMCs) from leukemic SJL/J mice. Included in these studies were the nonbinding control conjugates, including rat IgG Ab, rat IgG-DOTA-Ab, and rat IgG Ab-SA.