Red pigment concentrating hormone(Panbo-RPCH) peptide

Red pigment concentrating hormone(Panbo-RPCH) peptide

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

Batch to batch variation of the purity

pELNFSPGW-NH2

pGlu-Leu-Asn-Phe-Ser-Pro-Gly-Trp-NH2

8

98.2%

C₄₅H₅₉N₁₁O₁₁

930

Synthetic

Powder

Red Pigment Concentrating Hormone (RPCH) belongs to the chromatophorotropic hormones family in crustaceans. RPCH's function is to cause the aggregation of pigment granules in tegumentary chromatophores and retinal cells, which is the opposite of what Pigment Dispersing Hormone (PDH) does. Structurally, it is closely related to the Adipokinetic Hormone (AKH) family found in insects and the APGWamide neuropeptides in mollusks. RPCH and AKH are often grouped into the AKH/RPCH family due to their similarities.

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

• Fernlund P, Josefsson L. Crustacean color-change hormone: amino acid sequence and chemical synthesis. Science. 1972;177(4044):173-5.
• Martínez-Pérez F, Valdés J, Zinker S, Aréchiga H. The genomic organization of the open reading frame of the red pigment concentrating hormone gene in the blue crab Callinectes sapidus. Peptides. 2002 Apr;23(4):781-6. doi: 10.1016/s0196-9781(01)00648-9. PMID: 11897398.

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.