• Peptide defense signal 1 with 10 pentose residues

Peptide defense signal 1 with 10 pentose residues

Not For Human Use, Lab Use Only.

Cat.#: 300940

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Product Information

  • Product Name
    Peptide defense signal 1 with 10 pentose residues
  • Documents
  • Sequence Shortening
    H-REEKPPPPAPETDDPNRP-OH
  • Sequence
    H-Arg-Glu-Glu-Lys-Pro-Pro-Pro-Pro-Ala-Pro-Glu-Thr-Asp-Asp-Pro-Asn-Arg-Pro-OH
  • Length (aa)
    18
  • Peptide Purity (HPLC)
    95.94%
  • Molecular Formula
    C87H136N26O31
  • Molecular Weight
    2042.15
  • Source
    Synthetic
  • Form
    Powder
  • Description
    Peptide defense signal 1 with 10 pentose residues, which is also called IbHypSys I, is found in the leaves of sweet potato / batate (Ipomoea batateas).
    IbHypSys I is one of the six proline-rich peptides encoded within a precursor protein, and acts as defense signals in sweet potato plants.
    Synthetic IbHypSys I, along with the other five putative IbHypSys peptides, was active in inducing the expression of the defense gene sporamin in sweet potato leaves.
  • 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
    • Chen YC, Siems WF, Pearce G, Ryan CA. Six peptide wound signals derived from a single precursor protein in Ipomoea batatas leaves activate the expression of the defense gene sporamin. J Biol Chem. 2008;283(17):11469-76.
  • 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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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"