General Information

    • DRAMP ID

    • DRAMP01372

    • Peptide Name

    • Odorranain-B1 (OdB1; Frogs, amphibians, animals)

    • Source

    • Odorrana hainanensis (Odor frog) (Rana hainanensis)

    • Family

    • Belongs to the frog skin active peptide (FSAP) family. Brevinin subfamily.

    • Gene

    • Not found

    • Sequence

    • AALKGCWTKSIPPKPCFGKR

    • Sequence Length

    • 20

    • Protein Existence

    • Homology

Activity Information

    • Biological Activity

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

    • Target Organism

      • [Ref.17272268] Gram-negative bacterium: Escherichia coli (MIC=3.21 μg/ml);
      • Gram-positive bacteria: Staphylococcus aureus (MIC=5.83 μg/ml), Bacillus subtilis (MIC=1.85 μg/ml).
      • Yeast: Candida albicans (MIC=2.4 μg/ml).

    • Hemolytic Activity

      • [Ref:17272268] No detectable hemolytic activity against rabbit red blood cells.

    • Cytotoxicity

    • No cytotoxicity information found in the reference(s) presented

    • Binding Target

    • Not found

Structure Information

    • Linear/Cyclic

    • Cyclic

    • N-terminal Modification

    • Free

    • C-terminal Modification

    • Free

    • Nonterminal Modifications and Unusual Amino Acids

    • [Ref:17272268] There are one disulfide bond between Cys6 and Cys16

    • Stereochemistry

    • L

    • Structure

    • Not found

    • Structure Description

    • Odorranain-B1 adopts 5.9 %

    • Helical Wheel Diagram

    • DRAMP01372 helical wheel diagram

    • PDB ID

    • None

    • Predicted Structure

Physicochemical Information

    • Formula

    • C100H162N28O23S2

    • Absent Amino Acids

    • DEHMNQVY

    • Common Amino Acids

    • K

    • Mass

    • 2188.68

    • PI

    • 10.07

    • Basic Residues

    • 5

    • Acidic Residues

    • 0

    • Hydrophobic Residues

    • 6

    • Net Charge

    • +5

    • Boman Index

    • -19.88

    • Hydrophobicity

    • -0.42

    • Aliphatic Index

    • 49

    • Half Life

      • Mammalian:4.4 hour
      • Yeast:>20 hour
      • E.coli:>10 hour

    • Extinction Coefficient Cystines

    • 5625

    • Absorbance 280nm

    • 296.05

    • Polar Residues

    • 6

DRAMP01372

DRAMP01372 chydropathy plot

Comments Information

    • Function

    • Odorranain-B1 exhibites antimicrobial activities against all of the tested microbes including Gram-positive and Gram-negative bacteria and fungi. Has no hemolytic activity against red cell.

    • Tissue specificity

    • Expressed by the skin glands.

Literature Information

  • ·Literature 1

    • Title

    • Anti-infection peptidomics of amphibian skin.

    • Reference

    • Mol Cell Proteomics. 2007 May;6(5):882-894.

    • Author

    • Li J, Xu X, Xu C, Zhou W, Zhang K, Yu H, Zhang Y, Zheng Y, Rees HH, Lai R, Yang D, Wu J.