AIDS-188904 AIDS188904 Ac-Arg-Ala-Val-Gly-Ile-Gly-Ala-Leu-Phe-Leu-Gly-Phe-Leu-Gly-Ala-Ala-Gly-Ser-Thr-Met-Gly-Ala-Ala-Ser-Met-NH2 Ac-RAVGIGALFL GFLGAAGSTM GAASM-NH2 Residues 511-535 of gp120/gp41