• DRAMP ID

    • DRAMP02273
    • Peptide Name

    • PGLa-H (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

    • KIAKVALKAL
    • Sequence Length

    • 10
    • Protein Existence

    • Protein level
    • Biological Activity

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

      • [Ref.22014884]Gram-positive bacteria: Staphylococcus aureus ATCC 25923 (MIC=8.7 µg/ml), Bacillus subtilis (MIC=14.4 µg/ml), Staphylococcus aureus (MRSA) (MIC=67.8 µg/ml);
      • Gram-negative bacteria: Escherichia coli ATCC 25922 (MIC=23.6 µg/ml)
    • Hemolytic Activity

      • [Ref.22014884]3.15% hemolytic activity at 100 μg/mL, 7.95% hemolytic activity at 200 μg/mL against rabbit red blood cells
    • 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

    • DRAMP02273 helical wheel diagram
    • PDB ID

    • None
    • Predicted Structure

    • Formula

    • C50H95N13O11
    • Absent Amino Acids

    • CDEFGHMNPQRSTWY
    • Common Amino Acids

    • AK
    • Mass

    • 1054.38
    • PI

    • 10.3
    • Basic Residues

    • 3
    • Acidic Residues

    • 0
    • Hydrophobic Residues

    • 7
    • Net Charge

    • +3
    • Boman Index

    • 7.58
    • Hydrophobicity

    • 1
    • Aliphatic Index

    • 176
    • Half Life

      • Mammalian:1.3 hour
      • Yeast:3 min
      • E.coli:2 min
    • Extinction Coefficient Cystines

    • 0
    • Absorbance 280nm

    • 0
    • Polar Residues

    • 0

DRAMP02273

    • Function

    • PGLa-H display a broad-spectrum of antibacterial activity against a range of Gram-positive and Gram-negative bacteria. PGLa-H shows moderate antibacterial activity against the multidrug-resistant methicillin-resistant S. aureus (MRSA) but exhibits hemolytic activity.
    • 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 10.
  • ·Literature 1
    • Title

    • Isolation and characterisation of a new antimicrobial peptide from the skin of Xenopus laevis.
    • Reference

    • Int J Antimicrob Agents. 2011 Dec;38(6):510-515.
    • Author

    • Hou F, Li J, Pan P, Xu J, Liu L, Liu W, Song B, Li N, Wan J, Gao H.
  • ·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.