[cPP1-7,NPY19-23,Ala31,Aib32,Gln34] - hPancreatic polypeptide

[cPP1-7,NPY19-23,Ala31,Aib32,Gln34] - hPancreatic polypeptide

• Handling and Storage of Synthetic Peptides
• Material Safety Data Sheets (MSDS)

Batch to batch variation of the purity

GPSQPTYPGDNATPEQMARYYSALRRYINMAXRQRY-NH2, X = Aib

H-Gly-Pro-Ser-Gln-Pro-Thr-Tyr-Pro-Gly-Asp-Asn-Ala-Thr-Pro-Glu-Gln-Met-Ala-Arg-Tyr-Tyr-Ser-Ala-Leu-Arg-Arg-Tyr-Ile-Asn-Met-Ala-Aib-Arg-Gln-Arg-Tyr-NH2

36

95.25%

C₁₈₃H₂₈₁N₅₇O₅₄S₂

4207.67

Synthetic

Powder

[cPP1-7,NPY19-23,Ala31,Aib32,Gln34] - hPancreatic Polypeptide is a potent and selective peptide agonist for the neuropeptide Y Y5 receptor , with IC50 values for inhibition of neuropeptide Y binding to human Y5, Y1, Y2 and Y4 receptors of 0.24, 530, > 500, and 51 nM respectively, and a Ki at Y5 of 0.1 - 0.15 nM. [cPP1-7,NPY19-23,Ala31,Aib32,Gln34] - hPancreatic Polypeptide stimulates food intake in vivo.

Normally, this peptide will be delivered in lyophilized form and should be stored in a freezer at or below -20 °C. For more details, please refer to the manual: Handling and Storage of Synthetic Peptides

• Cabrele et al (2000) The first selective agonist for the neuropeptide YY5 receptor increases food intake in rats. J.Biol.Chem. 275 36043 PMID: 10944518
• Quarta et al (2011) Central administration of NPY or an NPY-Y5 selective agonist increase in vivo extracellular monoamine levels in mesocorticolimbic projecting areas. Neuropharmacology 60(2-3) 328 PMID: 20868698
• Medeiros and Jackson (2013) Neuropeptide Y Y5-receptor activation on breast cancer cells acts as a paracrine system that stimulates VEGF expression and secretion to promote angiogenesis. Peptides 48 106 PMID: 23932937

Trifluoroacetic acid (TFA) has a significant impact on peptides due to its role in the peptide synthesis process.

TFA is essential for the protonation of peptides that lack basic amino acids such as Arginine (Arg), Histidine (His), and Lysine (Lys), or ones that have blocked N-termini. As a result, peptides often contain TFA salts in the final product.

TFA residues, when present in custom peptides, can cause unpredictable fluctuations in experimental data. At a nanomolar (nM) level, TFA can influence cell experiments, hindering cell growth at low concentrations (as low as 10 nM) and promoting it at higher doses (0.5–7.0 mM). It can also serve as an allosteric regulator on the GlyR of glycine receptors, thereby increasing receptor activity at lower glycine concentrations.

In an in vivo setting, TFA can trifluoroacetylate amino groups in proteins and phospholipids, inducing potentially unwanted antibody responses. Moreover, TFA can impact structure studies as it affects spectrum absorption.