• DRAMP ID

    • DRAMP02272
    • Peptide Name

    • PGLa (chain of PYLa/PGLa A; Frogs, amphibians, animals)
    • Source

    • Xenopus laevis (African clawed frog)
    • Family

    • Belongs to the gastrin/cholecystokinin family (Magainin subfamily)
    • Gene

    • pgla-a AND pgla-b
    • Sequence

    • GMASKAGAIAGKIAKVALKAL
    • Sequence Length

    • 21
    • Protein Existence

    • Protein level
    • Biological Activity

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

      • Gram-negative bacteria: Escherichia coli 25922 (MIC=62-125 µg/ml), Klebsiella pneumoniae 13883 (MIC=250-500 µg/ml), Pseudomonas aeruginosa 27853 (MIC=250-500 µg/ml);
      • Gram-positive bacteria: Staphylococcus aureus 29213 (MIC=125-500 µg/ml), Strepococcus faecalis (MIC>500 µg/ml).
      • Yeast: Candida albicans 14053 (MIC=250-500 µg/ml).
    • Hemolytic Activity

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

    • Not found
    • Structure Description

    • Not found
    • Helical Wheel Diagram

    • DRAMP02272 helical wheel diagram
    • PDB ID

    • None
    • Predicted Structure

    • There is no predicted structure for DRAMP02272.
    • Formula

    • C88H161N25O23S
    • Absent Amino Acids

    • CDEFHNPQRTWY
    • Common Amino Acids

    • A
    • Mass

    • 1969.46
    • PI

    • 10.48
    • Basic Residues

    • 4
    • Acidic Residues

    • 0
    • Hydrophobic Residues

    • 12
    • Net Charge

    • +4
    • Boman Index

    • 15.96
    • Hydrophobicity

    • 0.843
    • Aliphatic Index

    • 121.43
    • Half Life

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

    • 0
    • Absorbance 280nm

    • 0
    • Polar Residues

    • 4

DRAMP02272

DRAMP02272 chydropathy plot
    • Function

    • PGLa display a broad-spectrum of antibacterial activity against a range of Gram-positive and Gram-negative bacteria. PGLa also displays antifungal activity against C. albicans ATCC 14053.
    • Tissue specificity

    • Expressed by the skin glands. Synthesized in the stomach and stored in a novel granular multinucleated cell in the gastric mucosa. Stored as active, processed peptides in large granules within the granular gland secretions of the skin.
    • PTM

    • Leucine amide at position 21.
  • ·Literature 1
    • Title

    • Biosynthesis and degradation of peptides derived from Xenopus laevis prohormones.
    • Reference

    • Biochem J. 1987 Apr 1;243(1):113-120.
    • Author

    • Giovannini MG, Poulter L, Gibson BW, Williams DH.
  • ·Literature 2
    • Title

    • Antimicrobial peptides in the stomach of Xenopus laevis.
    • Reference

    • J Biol Chem. 1991 Oct 15;266(29):19851-19857.
    • Author

    • Moore KS, Bevins CL, Brasseur MM, Tomassini N, Turner K, Eck H, Zasloff M.