Peptide Medix product catalog

Research Catalog · peptide family

Receptorphin — Research Products

4 catalog items

Catalog # Product Type Species Size Price Add to cart
022-50 Receptorphin Peptides Other species 500 µg $88.00 $104.00
FG-022-50A Receptorphin – FAM Labeled Fluorescent-labeled Labeled Peptides Other species 1 nmol $341.00 $402.00
T-022-50 Receptorphin – I-125 Labeled I-125 labeled Labeled Peptides Other species 10 µCi $1159.00 $1364.00
FR-022-50 Receptorphin – Rhodamine Labeled Fluorescent-labeled Labeled Peptides Other species 1 nmol $341.00 $402.00

All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy. Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.

Receptorphin — frequently asked

What is receptorphin?
Receptorphin is a short peptide whose sequence derives from a conserved region of the opioid receptors rather than from a classical opioid precursor. It belongs to a small group sometimes described as receptor-derived or receptor-sequence peptides.
How well established is its activity?
Reports describe opioid-like behaviour in some binding and functional assays, but the literature is limited and the proposed mechanism has not been widely replicated. It is best treated as an exploratory pharmacological probe rather than a confirmed endogenous ligand.
What are the labeled versions used for?
FAM- and rhodamine-labeled analogues support fluorescence binding and imaging experiments, while the iodine-125 labeled form suits classical radioligand binding and autoradiography. Labeled forms are typically used in competition assays against established opioid ligands.