MHC CLASS I H-2DD HEAVY CHAIN COMPLEXED WITH BETA-2 MICROGLOBULIN AND A VARIANT PEPTIDE, PI10, FROM THE HUMAN IMMUNODEFICIENCY VIRUS (BAL) ENVELOPE GLYCOPROTEIN 120 IMMUNE SYSTEM, COMPLEX (HISTOCOMPATIBILITY/ANTIGEN), GLYCOPROTEIN, IMMUNE RESPONSE, MEMBRANE, MHC I, PHOSPHOPROTEIN, TRANSMEMBRANE, IMMUNOGLOBULIN DOMAIN, SECRETED, ENVELOPE PROTEIN 3E6H