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  • Latarcin 3a peptide

Latarcin 3a peptide

Not For Human Use, Lab Use Only.

Cat.#: 307853

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

Special Price 253.00 USD

Availability: 1-2 weeks
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Product Information

  • Product Name
    Latarcin 3a peptide
  • Documents

    Batch to batch variation of the purity

  • Sequence Shortening
    SWKSMAKKLKEYMEKLKQRA
  • Sequence
    H-Ser-Trp-Lys-Ser-Met-Ala-Lys-Lys-Leu-Lys-Glu-Tyr-Met-Glu-Lys-Leu-Lys-Gln-Arg-Ala-NH2
  • Length (aa)
    20
  • Peptide Purity (HPLC)
    97.8%
  • Molecular Formula
    C111H188N32O28S2
  • Molecular Weight
    2482.9
  • Source
    Synthetic
  • Form
    Powder
  • Description
    The same peptide called La47 is also found by Garcia F et al. (2013) J Antibiotic 66: 3-10. These authors found that the peptide is poorly active against E. coli (MIC 100 ug/ml) or S. aureus (MIC 84 ug/ml). Updated Jan 2013. Latarcin 3a has Antibacterial, Antifungal activity. Latarcin 3a was found in Lachesana tarabaevi, Central Asia.
  • 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
    • Kozlov SA, Vassilevski AA, Feofanov AV, Surovoy AY, Karpunin DV, Grishin EV. Latarcins, antimicrobial and cytolytic peptides from the venom of the spider Lachesana tarabaevi (Zodariidae) that exemplify biomolecular diversity. J Biol Chem. 2006;281(30):20983-92.
  • 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)

Mass
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Concentration
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Volume
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Molecular Weight

Peptide Property

  • Analysed Sequence:A
  • Chemical Formula:A
  • Sequence length:A
  • Extinction coefficient:A M-1cm-1
  • GRAVY:A
  • Mw average:A
  • Theoretical pI:A
  • 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"