>4r4n_S mol:protein length:352 HIV-1 gp120 IWKDANTTLFCASDAKAYDTEVHNVWATHACVPTDPSPQELKMENVTEEFNMWKNNMVE QMHTDIISLWDQSLKPCVQLTGGSALTQACPKVTFEPIPIHYCAPAGYAILKCNDKEFN GTGLCKNVSTVQCTHGIRPVVSTQLLLNGSLAEGKVMIRSENITNNVKNIIVQLNESVT INCTRPNNGGSGSGGDIRQAHCNVSGSQWNKTLHQVVEQLRKYWNNNTIIFNSSSGGDL EITTHSFNCGGEFFYCNTSGLFNSTWVNGTASIENGTITLPCRIKQIINMWQRVGQAIY APPIQGVIRCVSNITGLILTRDGGGNSNENETFRPGGGDMRDNWRSELYKYKVVKIE