The series of molecular signals initiated by binding of a ligand to a ERBB4 receptor on the surface of a cell, followed by transmission of the signal by a heterodimeric complex of ERBB2 and ERBB4. ERBB2, which does not bind any known ligand, is activated through formation of a heterodimer with another ligand-activated ERBB family member such as ERBB4. [GOC:signaling, PMID:16460914, Reactome:R-HSA-1963589]
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M5: Ontology GO: Gene Ontology GO:BP: GO Biological Process
