>4r2g_O mol:protein length:309  Surface protein gp160
DFNMWKNNMVEQMQEDVINLWDQSLKPCVKLTGGSVITQACPKVSFEPIPIHYCAPAGF
AILKCNNKTFNGKGQCKNVSTVQCTHGIRPVVSTQLLLNGSLAEEKVVIRSDNFTDNAK
TIIVQLNESVKINCTRPSNNTRPGEIIGDIRQAHCNISRAQWNNTLKQIVEKLREQFNN
KTIVFTHSSGGDPEIVMHSFNCGGEFFYCNSTQLFNSTWNDTEKSSGTEGNDTIILPCR
IKQIINMWQEVGKAMYAPPIKGQIRCSSNITGLLLTRDGGKNESEIEIFRPGGGDMRDN
WRSELYKYKVVKIE