Peptide Database

Body Protection Compound 157 · PL 14736

BPC-157 is a 15-amino-acid peptide fragment derived from human gastric juice. It is one of the most extensively researched peptides for tissue repair, demonstrating accelerated healing of tendons, ligaments, muscle, bone, and gut lining in animal models. It appears to upregulate growth hormone receptors and promote angiogenesis at injury sites.

C₆₂H₉₈N₁₆O₂₂ · 1419.55 Da

BK · Kallidin precursor fragment

Bradykinin is a 9-amino-acid vasoactive peptide of the kinin-kallikrein system. It produces vasodilation, increased vascular permeability, pain, and inflammation by acting on B1 and B2 receptors. ACE inhibitors (a major drug class) lower blood pressure partly by preventing bradykinin degradation. Icatibant, a B2 antagonist, is approved for hereditary angioedema. Research also implicates bradykinin in COVID-19 pathology (bradykinin storm hypothesis).