Reactivity of rabbit antimolecular mimicry Ab with HIV-1 proteins. Immunoblot of control sera (lane 1); 2 positive control sera (lanes 2 and 3); 3 rabbit antimolecular mimicry Ab sera, 1096, 1098, and 1099 (lanes 4, 5, and 6, respectively); preimmune rabbit sera (lane 7); and affinity-purified HIV-1-ITP patient sera (lane 8).