Peptides are tiny messenger molecules that cells use to send signals and...

https://magic-wiki.win/index.php/What_Does_It_Mean_When_a_Peptide_Is_Degraded_Quickly_in_a_System%3F

Peptides are tiny messenger molecules that cells use to send signals and trigger responses. In the lab, researchers apply peptides to cells to study how receptors respond, how selective these interactions are, and which signaling pathways get activated