PR-39 peptide

PR-39 peptide

• COA/MS/HPLC Report
• Handling and Storage of Synthetic Peptides
• Material Safety Data Sheets (MSDS)

Batch to batch variation of the purity

H-RRRPRPPYLPRPRPPPFFPPRLPPRIPPGFPPRFPPRFP-NH2

H-Arg-Arg-Arg-Pro-Arg-Pro-Pro-Tyr-Leu-Pro-Arg-Pro-Arg-Pro-Pro-Pro-Phe-Phe-Pro-Pro-Arg-Leu-Pro-Pro-Arg-Ile-Pro-Pro-Gly-Phe-Pro-Pro-Arg-Phe-Pro-Pro-Arg-Phe-Pro-NH2

39

98.83%

C₂₂₉H₃₄₆N₇₀O₄₀

4719.63

Synthetic

Powder

PR 39 is a 39 amino acid proline-rich cathelicidin host defence and immunomodulatory peptide isolated from porcine polymorphonuclear neutrophils. PR 39 plays a pivotal role in the innate immune defence of the pig against infections. Besides direct antimicrobial activity, PR 39 is involved in wound healing and also stimulates angiogenesis and inhibits inflammatory responses by selectively blocking proteasome degradation of IκBα.

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

• Li et al (2000) PR39, a peptide regulator of angiogenesis. Nat.Med. 6 356 PMID: 10613823
• Gaczynska et al (2003) Proline and arginine-rich peptides constitute a novel class of allosteric inhibitors of proteasome activity. Biochemistry 42 8663 PMID: 12873125
• Veldhuizen et al (2014) Antimicrobial and immunomodulatory activities of PR-39 derived peptides. PLoS One 9(4) e95939 PMID: 24755622

Trifluoroacetic acid (TFA) is a common counterion from the purification process using High-Performance Liquid Chromatography (HPLC). The presence of TFA can affect the peptide's net weight, appearance, and solubility.

Impact on Net Weight: The TFA salt contributes to the total mass of the product. In most cases, the peptide content constitutes >80% of the total weight, with TFA accounting for the remainder.

Solubility: TFA salts generally enhance the solubility of peptides in aqueous solutions.

In Biological Assays: For most standard in vitro assays, the residual TFA levels do not cause interference. However, for highly sensitive cellular or biochemical studies, please be aware of its presence.