>3F4Y_1|Chains A, B, C|Envelope glycoprotein gp160|null
XSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILX
>3F4Y_2|Chains D, E, F|Mutant peptide derived from HIV gp41 CHR domain|null
XTTWEAWDRAIAEYAARIEALIRAAQEQQEKNEAALRELX