Peptides are tiny proteins that act as messengers in the body, binding to...

https://www.mediafire.com/file/guwzkywsxmn8jqi/pdf-32210-24754.pdf/file

Peptides are tiny proteins that act as messengers in the body, binding to specific receptors to trigger responses. Researchers use them to explore how receptors work, which peptides bind best, and the signaling routes they activate