Neuropeptide Y (human, rat)

Neuropeptide Y (human, rat)

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

H-YPSKPDNPGEDAPAEDMARYYSALRHYINLITRQRY-NH2

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

36

95.5%

C₁₈₉H₂₈₅N₅₅O₅₇S

4271.66

Synthetic

Powder

Neuropeptide Y (human, rat) is a widely distributed endogenous neuropeptide which mediates its physiological effects through at least four receptors, Y1, Y2, Y4, and Y5. Neuropeptide Y (human, rat) is one of the most abundant peptides in the central nervous system and is highly conserved throughout evolution. Neuropeptide Y (human, rat) is involved in a range of biochemical processes including appetite control, sexual behaviour and blood pressure regulation.

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

• Michel et al (1998) XVI. International Union of Pharmacology recommendations for the nomenclature of neuropeptide Y, peptide YY, and pancreatic polypeptide receptors. Pharmacol.Rev. 50 143 PMID: 9549761
• Morales-Medina et al (2010) A possible role of neuropeptide Y in depression and stress. Brain Res. 1314 194 PMID: 19782662
• Holzer et al (2012) Neuropeptide Y, peptide YY and pancreatic polypeptide in the gut-brain axis. Neuropeptides 2012 46(6) 261 PMID: 22979996

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.