ANGPT2/Angiopoietin-2 (dog) complexly regulates angiogenesis by binding to TEK/TIE2, competitively affecting ANGPT1 signaling. It independently induces TEK/TIE2 phosphorylation and, in the absence of VEGF, may cause endothelial cell apoptosis, thereby promoting vascular regression. ANGPT2/Angiopoietin-2 Protein, Dog (HEK293, His) is the recombinant dog-derived ANGPT2/Angiopoietin-2, Dog, expressed by HEK293 , with C-6*His labeled tag.