PT-141 is a synthetic peptide studied in vitro solely for its binding to melanocortin receptors, a family of G-protein-coupled receptors. This profile describes the compound strictly at the level of receptor biochemistry.
What is PT-141?
PT-141 is a synthetic melanocortin-receptor-targeting peptide used as a research material. It is described here only by structure and molecular target, with no reference to any physiological effect.
Its receptor target
PT-141 binds members of the melanocortin receptor family. In cell models expressing these receptors, researchers characterize its binding and the resulting change in receptor signaling state.
How it is studied in vitro
Characterization uses receptor-binding assays and cell-based signaling readouts (such as cyclic AMP) in cells engineered to express the target receptor, compared against proper controls.
Why it is of research interest
As a defined melanocortin-receptor ligand, PT-141 is a tool for probing that receptor family in a reproducible laboratory system.
Related research guides
- PT-141 (bremelanotide): structure and melanocortin-receptor profile
- Melanocortin & peptide-receptor (overview)
- Kisspeptin-10 (GPR54)
- Melanocortin receptor family
- GPCR binding assays
Research-use note
PT-141 is supplied as a research material for in vitro research use only. It is not for human or animal use.
Related research: PT-141.








