Immunogen sequence: KVPRNQDWLG VSRQLRTKAW NRQLYPEWTE AQRLDCWRGG QVSLKVSNDG PTLIGANASF SIALNFPGSQ KVLPDGQVIW VNNTIINGSQ VWGGQPVYPQ ETDDACIFPD GGPCPSGSWS QKRSFVYVWK TWGQYWQVLG GPVSGLSIGT GRAMLGTHTM EVTVYHRRGS RSYVPLAHSS SAFTITD. Melanoma is a malignant tum