Neuropilin-1 protein plays an important role by binding to VEGF-165, possibly inhibiting its cellular binding and inducing apoptosis. This dual function suggests its role in regulating VEGF-mediated processes. Neuropilin-1 Protein, Human (HEK293, Fc) is the recombinant human-derived Neuropilin-1 protein, expressed by HEK293 , with C-hFc labeled tag.