FIG. 1.

HTLV-I Western blot blocking results obtained with Indonesian transmigrant and Philippine samples. Lanes: 1, 2, 4, and 5, samples from the four Indonesian transmigrant HTLV-I EIA seroconverters in Table 1; 3, sample from a volunteer who was HTLV-I negative but Exp-1 positive by EIA; 6 to 11, Philippine samples; 12, HTLV-I-positive control; 13, kit positive (P) and negative (N) controls. (A) Samples preabsorbed and blocked with recombinant Exp-1 protein. (B) Samples preabsorbed and blocked with HLA DR control recombinant protein. Note that GD21 is a recombinant env-encoded glycoprotein that migrates at a faster rate than the other HTLV-I proteins.