How Peptides Are Made — 20 Amino Acids, 7,000 Different Signals

Your cells are running a communication network more complex than the internet.

Think of the 20 amino acids like letters in an alphabet. The same letters that spell STOP can be rearranged to spell POST. Identical building blocks, entirely different meaning.

Peptides work the same way. Link amino acids in one order and you get a growth signal. Rearrange those exact same blocks and you get a pain reliever. Sequence dictates function.

The same 20 amino acids that build a hunger signal also build a pain reliever. The difference between them is not ingredients. It is order.

Amino acids

7,000

Distinct signals

The instructions are not in the ingredients. They are in the order.

One More Thing

The ribosome — the cellular machine that assembles peptides — makes about 20 amino acid bonds per second. A 40-residue peptide like GLP-1 takes roughly 2 seconds to build. Your body produces millions of peptide molecules per minute. What we call "peptide therapy" is really just supplementing a production system that's been running since before you were born.

GLP-3 RT