Dot Blot analysis of recombinant HIV protease.  The total amount of recombinant HIV-protease spotted on the nitrocellulose membrane are indicated in left column.  Lane 1: anti-HIV protease (1696); 0.2 µg/ml  Lane 2: anti-HIV protease (1696); 1.0 µg/ml  Lane 3: anti-HIV protease (1696); 2.0 µg/ml