• DRAMP ID

    • DRAMP01623
    • Peptide Name

    • Bombinin-H4 (bombinin H isomers; Frogs, amphibians, animals)
    • Source

    • Bombina variegata (European frog)
    • Family

    • Belongs to the bombinin family
    • Gene

    • Not found
    • Sequence

    • LIGPVLGLVGSALGGLLKKI
    • Sequence Length

    • 20
    • Protein Existence

    • Protein level
    • Biological Activity

    • Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, hemolytic against mammalian cells, Antifungal
    • Target Organism

      • [Ref.8223491] Gram-negative bacterium: Escherichia coli D21 (MIC=4.8 µM);
      • Gram-positive bacterium: Staphylococcus aureus Cowan 1 (MIC=3.3 µM).
    • Hemolytic Activity

      • [Ref.8223491] Lethal concentration is 14.6 µM against human red blood cell.
    • Cytotoxicity

      • Not included yet
    • Binding Target

    • Not found
    • 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

    • Alpha helix
    • Structure Description

    • The epimerization reaction is incomplete, or, after racemization, the peptides still containing the L-amino acid in position 2 are partly degraded.
    • Helical Wheel Diagram

    • DRAMP01623 helical wheel diagram
    • PDB ID

    • None
    • Predicted Structure

    • Formula

    • C91H164N22O22
    • Absent Amino Acids

    • CDEFHMNQRTWY
    • Common Amino Acids

    • L
    • Mass

    • 1918.44
    • PI

    • 10
    • Basic Residues

    • 2
    • Acidic Residues

    • 0
    • Hydrophobic Residues

    • 11
    • Net Charge

    • +2
    • Boman Index

    • 39.45
    • Hydrophobicity

    • 1.49
    • Aliphatic Index

    • 190
    • Half Life

      • Mammalian:5.5 hour
      • Yeast:3 min
      • E.coli:2 min
    • Extinction Coefficient Cystines

    • 0
    • Absorbance 280nm

    • 0
    • Polar Residues

    • 6

DRAMP01623

DRAMP01623 chydropathy plot
    • Function

    • Have antimicrobial activity. Have some hemolytic activity.
  • ·Literature 1
    • Title

    • Antibacterial and haemolytic peptides containing D-alloisoleucine from the skin of Bombina variegata.
    • Reference

    • EMBO J. 1993; 12:4829-4832.
    • Author

    • Mignogna G, Simmaco M, Kreil G, Barra D.1993