• DRAMP ID

    • DRAMP03471
    • Peptide Name

    • Recombinant Crassostrea Gigas Defensin (Cg-Def; molluscs, animals)
    • Source

    • Crassostrea gigas (Pacific oyster)
    • Family

    • Not found
    • Gene

    • def
    • Sequence

    • GFGCPGNQLKCNNHCKSISCRAGYCDAATLWLRCTCTDCNGKK
    • Sequence Length

    • 43
    • Protein Existence

    • Protein level
    • Biological Activity

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

      • Gram-positive bacteria: Micrococcus lysodeikticus (MIC=0.005-0.01 µM), Staphylococcus aureus (MIC=1.25-2.5 µM), Microbacterium maritypicum (MIC=0.5-1 µM), Bacillus megaterium (MIC>20 µM);
      • Gram-negative bacteria: Escherichia coli 363 (MIC=35-20 µM), Vibrio alginolyticus (MIC>20 µM), Salmonella typhimurium (MIC>20 µM).
      • Fungi: Fusarium oxysporum (MIC=9-4.5 µM), Botrytis cinerea (MIC>20 µM), Penicillium crustosum (MIC>20 µM).
    • Hemolytic Activity

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

      • Not included yet
    • Binding Target

    • Lipid II
    • Linear/Cyclic

    • Cyclic
    • N-terminal Modification

    • Free
    • C-terminal Modification

    • Free
    • Nonterminal Modifications and Unusual Amino Acids

    • Disulfide bonds between Cys4 and Cys25,Cys11 and Cys34,Cys15 and Cys36,Cys20 and Cys39.
    • Stereochemistry

    • Not included yet
    • Structure

    • Combine helix and strand structure
    • Structure Description

    • Not found
    • Helical Wheel Diagram

    • DRAMP03471 helical wheel diagram
    • PDB ID

    • 2B68 resolved by NMR.
  • 2B68-> 
    • Predicted Structure

    • There is no predicted structure for DRAMP03471.
    • Formula

    • C190H303N61O59S8
    • Absent Amino Acids

    • EMV
    • Common Amino Acids

    • C
    • Mass

    • 4642.35
    • PI

    • 8.73
    • Basic Residues

    • 7
    • Acidic Residues

    • 2
    • Hydrophobic Residues

    • 9
    • Net Charge

    • +5
    • Boman Index

    • -75.53
    • Hydrophobicity

    • -0.412
    • Aliphatic Index

    • 43.26
    • Half Life

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

    • 7490
    • Absorbance 280nm

    • 178.33
    • Polar Residues

    • 23

DRAMP03471

DRAMP03471 chydropathy plot
    • Function

    • Has antibacterial activity (By similarity).
  • ·Literature 1
    • Title

    • Characterization of a defensin from the oyster Crassostrea gigas. Recombinant production, folding, solution structure, antimicrobial activities, and gene expression.
    • Reference

    • J Biol Chem. 2006 Jan 6;281(1):313-323.
    • Author

    • Gueguen Y, Herpin A, Aumelas A, Garnier J, Fievet J, Escoubas JM, Bulet P, Gonzalez M, Lelong C, Favrel P, Bachère E.