TrkA Protein (isoform 3) belongs to the nerve growth factor receptor family and can promote angiogenesis and has carcinogenic activity when overexpressed. TrkA Protein (isoform 3) antagonizes the anti-proliferative NGF-NTRK1 signaling that promotes the differentiation of neuronal precursors. TrkA Protein, Canine (HEK293, His) is the recombinant canine-derived TrkA protein, expressed by HEK293 , with N-His labeled tag.