Immunogen sequence: DEYVNEPLYL NTFANTLGKA EYLKNNILSM PEKAKKAFDN PDYWNHSLPP RSTLQHPDYL QEYSTKYFYK QNGRIRPIVA ENPEYLSEFS LKPGTVLPPP PYRHRNTVV. Oncogene ERBB4 (HER4) is a member of the type I receptor protein tyrosine subfamily that includes EGFR, ERBB2, an