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  • Human PD-L1 inhibitor Ar5Y_4 peptide

Human PD-L1 inhibitor Ar5Y_4 peptide

Not For Human Use, Lab Use Only.

Cat.#: 318735

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* Buy 1 get 1 free (?) What is TFA?

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Product Information

  • Product Name
    Human PD-L1 inhibitor Ar5Y_4 peptide
  • Documents

    Batch to batch variation of the purity

  • Sequence Shortening
    GNWDYNSQRAQLYNQ
  • Sequence
    H-Gly-Asn-Trp-Asp-Tyr-Asn-Ser-Gln-Arg-Ala-Gln-Leu-Tyr-Asn-Gln-OH
  • Length (aa)
    15
  • Peptide Purity (HPLC)
    98.62%
  • Molecular Formula
    C80H113N25O27
  • Molecular Weight
    1856.89
  • Source
    Synthetic
  • Form
    Powder
  • Description
    Blocking the interaction of human programmed death 1 (hPD-1) and its ligand hPD-L1 has been a promising immunotherapy in cancer treatment. Human PD-L1 inhibitor (Ar5Y_4, GNWDYNSQRAQLYNQ) showed a KD value of 1.38 ± 0.39 μM, comparable to the binding affinity of the cognate hPD-L1. A Surface Plasmon Resonance (SPR) competitive binding assay result indicated that Ar5Y_4 could inhibit the interaction of hPD-1/hPD-L1. Moreover, Ar5Y_4 could restore the function of Jurkat T cells which had been suppressed by stimulated HCT116 cells. Human PD-L1 inhibitor provides promising biologic candidates for cancer immunotherapy or diagnostics.
  • 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
    • Li Q, Quan L, Lyu J, et al. Discovery of peptide inhibitors targeting human programmed death 1 (PD-1) receptor. Oncotarget. 2016;7(40):64967-64976
  • About TFA salt

    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.

  • Molar Concentration Calculator

  • Dilution Calculator

  • Percent Concentration Calculator

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

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Molecular Weight

Peptide Property

  • Analysed Sequence:H-GNWDYNSQRAQLYNQ-OH
  • Chemical Formula:C80H113N25O27
  • Sequence length:15
  • Extinction coefficient:8250 M-1cm-1
  • GRAVY:-1.87
  • Mw average:1856.89
  • Theoretical pI:7
  • Data Source:Peptide Property Calculator

GRAVY = grand average of hydropathy

X: Hydrophobic uncharged residues, like F I L M V W A and P

X: Basic residues, like R K H

X: Acidic residues, like D E

X: Polar uncharged residues, like G S T C N Q and Y

• 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"