• RP-182 peptide (TFA removed)

RP-182 peptide (TFA removed)

Not For Human Use, Lab Use Only.

Cat.#: 318940

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Product Information

  • Product Name
    RP-182 peptide (TFA removed)
  • Documents
  • Sequence Shortening
    H-KFRKAFKRFF-OH
  • Sequence
    H-Lys-Phe-Arg-Lys-Ala-Phe-Lys-Arg-Phe-Phe-OH
  • Length (aa)
    10
  • Peptide Purity (HPLC)
    95.04%
  • Molecular Formula
    C69H103N19O11
  • Molecular Weight
    1374.67
  • Source
    Synthetic
  • Form
    Powder
  • Description
    The company Riptide Biosciences (Vallejo, CA, USA) designed a linear peptide that binds to CD206. The peptide, named RP-182 (sequence: KFRKAFKRFF) consists of alternating hydrophobic and hydrophilic aminoacids. Because the peptide also binds to RelB and CD47, the selectivity of systemically administered RP-182 for M2 TAMs remains to be seen. Interestingly, in a congress abstract the peptide was recently reported to induce phagocytosis and apoptosis in M2 mouse macrophages. This activity could be linked to the conformational change of CD206 produced by RP-182.
  • Storage Guidelines
    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
  • References
    • Sable R., Jaynes J., Ronzetti M., Guzman W., Knotts Z., Val N., de Morgan J., Yates C., Bolormaa B., Rudloff U. Abstract B49: Precision targeting of M2-like macrophages by the innate defense regulator RP-182 in pancreatic cancer and noncancerous diseases. Cancer Res. 2019;79:B49.
    • Scodeller, P., Simón-Gracia, L., Kopanchuk, S. et al. Precision Targeting of Tumor Macrophages with a CD206 Binding Peptide. Sci Rep 7, 14655 (2017). https://doi.org/10.1038/s41598-017-14709-x
  • About TFA salt

    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.

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Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Peptide Services: NovoPro's peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression.

Standard Peptide Synthesis: NovoPro offers quality peptides at the most competitive prices in the industry, starting at $3.20 per amino acid. NovoPro provides PepBox – Automatic Quote Tool for online price calculation.

Peptide Modifications: NovoPro offers a wide range of peptide modification services including isotope labeling (2H, 15N, and 13C), multiple disulfide bonds, multiple phosphorylations, KLH, BSA, ovalbumin, amidation, acetylation, biotin, FITC, etc.

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"