Our libraries are continuously updated to include all new and current peptides, receptors and references.

From thousands of peptides from our stock, we have put together various peptide family libraries for receptor and natural ligand studies:

		Alzheimer Fingerprint Library (Updated April 17th, 2012)
		GPCR Peptide Ligand Library (Updated Oct 8th, 2012)
		New Orphan Receptor Peptide Ligand Library (Updated August 25th, 2011)
		Chop-Suey Peptide Library (Variety Pack) (Updated August 25th, 2011)
		Opioid Peptide Library (Updated August 25th, 2011)
		Obesity Peptide Libraries (Updated August 25th, 2011)
		Gastrointestinal Peptide Library (Updated August 25th, 2011)
		Brain Peptide Library (Bees) (Updated August 25th, 2011)
		Anti-angiogenic Peptide Library (Updated August 25th, 2011)
		Custom Peptide Library

Alzheimer Fingerprint Library*
G Protein Coupled Receptor Peptide Ligand Library*:
More than 40 families of identified or suspected G Protein Coupled Receptor Peptide Ligands as well as its related agonists and antagonists enable a "reverse pharmacology approach" for large scale screening Orphan G Protein Coupled Receptors included over five hunderd peptides which are HPLC-purified and fluorescein free. This library covers various newly identified G Protein Coupled Receptor Ligands including RFamide Related Peptides (OT7T022), Neuromedin U (NmU R-1/FM-3 and NmU R-2/FM-4), human Urotensin II (GPR14), Neuropeptide AF/FF(NPFF-1 and NPFF-2), Ghrelin(GHS-Rs), Motilin(GPR-38-A), MCH(SLC-1), Orexins and Hypocretins (HFGAN-72), Prolactin Releasing Peptide (HGR-3/GPR-10/UHR-1), Orphanin FQ (ORL-1) and Apelin(APJ).

Chop-Suey Peptides Library (Variety Pack)*
Opioid Peptides Library*
Obesity Related Peptide Library*
Gastrointestinal Peptides Library*
Brain Peptide Library (Bees)
Anti-angiogenic Peptide Library
Custom Peptide Library

Phoenix's Peptide Receptor Ligand Libraries, a broad set of peptides (thousands), enables a "reverse pharmacology" approach to identify unknown membrane receptors, G-protein-coupled receptors, ion channels, intracellular signaling enzymes and receptors.Feighner et al. (1), successfully identified a human motilin receptor using the Phoenix Gastrointestinal Peptide Library and HEK293 cells in which a human motilin receptor was coexpressed with aequorin, a bioluminescent calcium sensitive reporter protein. A similar approach was taken by Chambers et al. (2), to identify an orphan G-protein coupled receptor as a human MCH receptor, using over 700 naturally occurring and putative neuropeptide's. Recently, neuromedin U has been identified as a natural ligand for two orphan G protein coupled receptors, FM-3 and FM-4.

Howard, A.D. et al. Nature 406, 70-75 (July 6, 2000)

References:

1. Feighner, S.D. et al., Science 284, 2184-2188 (1999)
2. Chambers, J. et al., Nature 400, 261-265 (1999)
3. Howard, A.D. et al.Identification of receptors for neuromedin U and its role in feeding. Nature 406, 70-75 (July 6, 2000).