Exploration of inhibitor effect of Gly-Pro (GP), Arg-Gly-Asp-Ser (RGDS) and Ser-Asp-Gly-Arg-Gly (SDGRG) bioactive peptides on angiotensin-converting enzyme activity purified from human serum

value was 0.15 nM. Herein, it was concluded that GP, RGDS and SDGRG have ACE inhibitor potential.