Peptide ScienceIntermediate 2 min read Updated 9 July 2026

Peptide Classification

How research peptides are grouped — by structure, origin and receptor target — the cluster tying together peptide chemistry and receptor biology.

Peptide Classification

Peptides can be classified by structure, origin and the receptors they target.

Analogues resemble a natural peptide; secretagogues act on secretagogue receptors.

Classification helps organise how research compounds relate to one another.

Why classify peptides?

Classifying peptides helps researchers organise a large and growing field. Grouping compounds by structure, origin or receptor target makes it easier to compare them and understand their relationships.

Common classes

Analogues are designed to resemble a naturally occurring peptide, such as alpha-MSH analogues. Secretagogues act on secretagogue receptors. Multi-receptor agonists engage more than one receptor at once, as with triple agonists.

Frequently asked questions

How are peptides classified?+

Commonly by structure, origin and receptor target — for example analogues, secretagogues and multi-receptor agonists.

For laboratory research use only. Not for human or animal consumption.