General Information
-
DRAMP ID
- DRAMP01246
-
Peptide Name
- Japonicin-2 (Frogs, amphibians, animals)
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Source
- Rana japonica (Japanese brown frog)
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Family
- Belongs to the frog skin active peptide family (Brevinin subfamily)
-
Gene
- Not found
-
Sequence
- FGLPMLSILPKALCILLKRKC
-
Sequence Length
- 21
-
UniProt Entry
- P83306
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Protein Existence
- Protein level
Activity Information
-
Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
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Target Organism
-
- Gram-negative bacterium: Escherichia coli (MIC=12 µM);
- Gram-positive bacterium: Staphylococcus aureus (MIC=20 µM).
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Hemolytic Activity
-
- No hemolysis information or data found in the reference(s) presented in this entry
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Cytotoxicity
- No cytotoxicity information found in the reference(s) presented
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Binding Target
- Not found
Structure Information
-
Linear/Cyclic
- Cyclic
-
N-terminal Modification
- Free
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C-terminal Modification
- Cyclization (Cys14 and Cys21)
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Nonterminal Modifications and Unusual Amino Acids
- Disulfide bond between Cys14 and Cys21.
-
Stereochemistry
- L
-
Structure
- Not found
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Structure Description
- Not found
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Helical Wheel Diagram
-
PDB ID
- None
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Predicted Structure
- Please click DRAMP01246_predicted_structure.pdb to download.
Physicochemical Information
-
Formula
- C110H193N27O23S3
Absent Amino Acids
- DEHNQTVWY
Common Amino Acids
- L
Mass
- 2358.09
PI
- 9.85
Basic Residues
- 4
Acidic Residues
- 0
Hydrophobic Residues
- 10
Net Charge
- +4
-
Boman Index
- 15.03
Hydrophobicity
- 1.081
Aliphatic Index
- 153.33
Half Life
-
- Mammalian:1.1 hour
- Yeast:3 min
- E.coli:2 min
Extinction Coefficient Cystines
- 125
Absorbance 280nm
- 6.25
Polar Residues
- 4
DRAMP01246
Comments Information
Tissue specificity
- Expressed by the skin glands.
Literature Information
- ·Literature 1
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Title
- Antimicrobial peptides with atypical structural features from the skin of the Japanese brown frog Rana japonica.
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Pubmed ID
- 11835990
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Reference
- Peptides. 2002;23:419-425.
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Author
- Isaacson T, Soto A, Iwamuro S, Knoop FC, Conlon JM.