PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33672235-2 2021 Proteolysis is most prominent among the lymph-angiogenic VEGF-C and VEGF-D, which are synthesized as precursors that need to undergo enzymatic removal of their C- and N-terminal propeptides before they can activate their receptors. propeptides 178-189 vascular endothelial growth factor D Homo sapiens 68-74