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  • Ac-IETD-pNA peptide

Ac-IETD-pNA peptide

Not For Human Use, Lab Use Only.

Cat.#: 319652

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

Special Price 169.00 USD

Availability: 1-2 weeks
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Product Information

  • Product Name
    Ac-IETD-pNA peptide
  • Documents

    Batch to batch variation of the purity

  • Sequence Shortening
    Ac-IETD-pNA
  • Sequence
    Ac-Ile-Glu-Thr-Asp-pNA
  • Length (aa)
    4
  • Peptide Purity (HPLC)
    95.02%
  • Molecular Formula
    C27H38N6O12
  • Molecular Weight
    638.62
  • CAS No.
    219138-21-3
  • PubChem CID
    25108782
  • Source
    Synthetic
  • Form
    Powder
  • Description
    Ac-IETD-pNA is a substrate for caspase-8. Caspase-8 preferentially binds to and cleaves the Ile-Glu-Thr-Asp (IETD) peptide sequence to release p-nitroalinide, which can be quantified by colorimetric detection at 405 nm as a measure of enzyme activity.
  • 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
    • Smith GK, Barrett DG, Blackburn K, Cory M, Dallas WS, Davis R, Hassler D, McConnell R, Moyer M, Weaver K. Expression, preparation, and high-throughput screening of caspase-8: discovery of redox-based and steroid diacid inhibition. Arch Biochem Biophys. 2002 Mar 15;399(2):195-205. doi: 10.1006/abbi.2002.2757. PMID: 11888206.
  • 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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• 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"