Receptor Binding
The molecular interaction between a drug and its receptor — the first step in pharmacodynamics and the determinant of specificity.
Definition
Receptor binding is the physical interaction between a ligand and its receptor, characterised by affinity (binding strength) and selectivity (how preferentially it binds one receptor over others). Peptides often have high selectivity because their three-dimensional structure is shaped to match a specific receptor pocket — a key advantage over small-molecule drugs.
Read More
PharmacodynamicsPD
What a drug does to the body — the receptor binding and downstream signalling that produce the clinical effect.
MechanismAgonist
A molecule that binds a receptor and triggers its activity — most therapeutic peptides are agonists of a specific endogenous receptor.
MechanismAntagonist
A molecule that binds a receptor and blocks its activation — used therapeutically to silence an over-active signalling pathway.
$149 panel.
A clinician reads it in 24 hours.
Order the Peptide Readiness Panel, draw at a Quest or LabCorp near you, and your clinician sends back a matched protocol with a confidence score.