>4r2g_K mol:protein length:309 Surface protein gp160
DFNMWKNNMVEQMQEDVINLWDQSLKPCVKLTGGSVITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGKGQCKNVSTVQCTHGIRPVVSTQLLLNGSLAEEKVVIRSDNFTDNAKTIIVQLNESVKINCTRPSNNTRPGEIIGDIRQAHCNISRAQWNNTLKQIVEKLREQFNNKTIVFTHSSGGDPEIVMHSFNCGGEFFYCNSTQLFNSTWNDTEKSSGTEGNDTIILPCRIKQIINMWQEVGKAMYAPPIKGQIRCSSNITGLLLTRDGGKNESEIEIFRPGGGDMRDNWRSELYKYKVVKIE