• DRAMP ID

    • DRAMP04001
    • Peptide Name

    • [K7]-IsCT (Mutant: E7K; IsCT analog)
    • Source

    • Synthetic construct
    • Family

    • Not found
    • Gene

    • Not found
    • Sequence

    • ILGKIWKGIKSLF
    • Sequence Length

    • 13
    • UniProt Entry

    • No entry found
    • Protein Existence

    • Synthetic
    • Biological Activity

    • Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
    • Target Organism

      • Gram-negative bacteria: Escherichia coli KCTC 1682 (MIC=2 µM), Pseudomonas aeruginosa KCTC 1637 (MIC=2 µM), Salmonella typhimurium KCTC 1926 (MIC=1 µM);
      • Gram-positive bacteria: Staphylococcus epidermidis KCTC 1917 (MIC=1 µM), Staphylococcus aureus KCTC 1621 (MIC=1 µM)
    • Hemolytic Activity

      • No hemolysis information or data found in the reference(s) presented in this entry
    • Cytotoxicity

      • Not included yet
    • Binding Target

    • Cell membrane
    • Linear/Cyclic

    • Not included yet
    • N-terminal Modification

    • Not included yet
    • C-terminal Modification

    • Not included yet
    • Nonterminal Modifications and Unusual Amino Acids

    • Not included yet
    • Stereochemistry

    • Not included yet
    • Structure

    • Not found
    • Structure Description

    • Not found
    • Helical Wheel Diagram

    • DRAMP04001 helical wheel diagram
    • PDB ID

    • None
    • Predicted Structure

    • Formula

    • C75H123N17O15
    • Absent Amino Acids

    • ACDEHMNPQRTVY
    • Common Amino Acids

    • IK
    • Mass

    • 1502.91
    • PI

    • 10.3
    • Basic Residues

    • 3
    • Acidic Residues

    • 0
    • Hydrophobic Residues

    • 7
    • Net Charge

    • +3
    • Boman Index

    • 11.74
    • Hydrophobicity

    • 0.746
    • Aliphatic Index

    • 150
    • Half Life

      • Mammalian:20 hour
      • Yeast:30 min
      • E.coli:>10 hour
    • Extinction Coefficient Cystines

    • 5500
    • Absorbance 280nm

    • 458.33
    • Polar Residues

    • 3

DRAMP04001

    • Function

    • [K7]-IsCT displays a similar or 2-fold increase in antibacterial activity against both Gram-positive and Gram-negative bacteria, and complete loss of hemolysis activity.
    • Chemical modification

    • C-terminal amidation.
  • ·Literature 1
    • Title

    • Antibiotic activity and structural analysis of the scorpion-derived antimicrobial peptide IsCT and its analogs.
    • Reference

    • Biochem Biophys Res Commun. 2004 Oct 15;323(2):712-719.
    • Author

    • Lee K, Shin SY, Kim K, Lim SS, Hahm KS, Kim Y.