General Information

    • DRAMP ID

    • DRAMP01562

    • Peptide Name

    • Caerin-2.1 (Frogs, amphibians, animals)

    • Source

    • Litoria splendida (Magnificent tree frog) (Emerald spotted tree frog)

    • Family

    • Belongs to the frog skin active peptide family (Caerin subfamily)

    • Gene

    • Not found

    • Sequence

    • GLVSSIGRALGGLLADVVKSKGQPA

    • Sequence Length

    • 25

    • Protein Existence

    • Protein level

Activity Information

    • Biological Activity

    • Antimicrobial, Antibacterial, Anti-Gram-

    • Target Organism

      • Gram-negative bacterium: Pasteurella multocida (MIC=25 µg/ml). (Ref.2)

    • Hemolytic Activity

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

    • Cytotoxicity

      • [Ref.15203252]No cytotoxicity information found
      • [Ref.19642086]No cytotoxicity information found

    • Binding Target

    • Not found

Structure Information

    • Linear/Cyclic

    • Linear

    • N-terminal Modification

    • Free

    • C-terminal Modification

    • Free

    • Nonterminal Modifications and Unusual Amino Acids

    • Free

    • Stereochemistry

    • L

    • Structure

    • Not found

    • Structure Description

    • Not found

    • Helical Wheel Diagram

    • DRAMP01562 helical wheel diagram

    • PDB ID

    • None

    • Predicted Structure

    • There is no predicted structure for DRAMP01562.

Physicochemical Information

    • Formula

    • C105H185N31O32

    • Absent Amino Acids

    • CEFHMNTWY

    • Common Amino Acids

    • G

    • Mass

    • 2393.81

    • PI

    • 9.99

    • Basic Residues

    • 3

    • Acidic Residues

    • 1

    • Hydrophobic Residues

    • 11

    • Net Charge

    • +2

    • Boman Index

    • -3.63

    • Hydrophobicity

    • 0.496

    • Aliphatic Index

    • 124.8

    • Half Life

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

    • Extinction Coefficient Cystines

    • 0

    • Absorbance 280nm

    • 0

    • Polar Residues

    • 8

DRAMP01562

DRAMP01562 chydropathy plot

Comments Information

    • Function

    • Antibacterial peptide, that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.

    • Tissue specificity

    • Expressed by the skin parotoid and/or rostral glands.

Literature Information

  • ·Literature 1

    • Title

    • Host-defence peptides of Australian anurans: structure, mechanism of action and evolutionary significance.

    • Reference

    • Peptides. 2004 Jun;25(6):1035-1054.

    • Author

    • Apponyi MA, Pukala TL, Brinkworth CS, Maselli VM, Bowie JH, Tyler MJ, Booker GW, Wallace JC, Carver JA, Separovic F, Doyle J, Llewellyn LE.
  • ·Literature 2

    • Title

    • The host-defence skin peptide profiles of Peron's Tree Frog Litoria peronii in winter and summer. Sequence determination by electrospray mass spectrometry and activities of the peptides.

    • Reference

    • Rapid Commun Mass Spectrom. 2009 Sep;23(17):2628-2636.

    • Author

    • Bilusich D, Jackway RJ, Musgrave IF, Tyler MJ, Bowie JH.