General Information
-
DRAMP ID
- DRAMP01249
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Peptide Name
- Dybowskin-2 (Frogs, amphibians, animals)
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Source
- Rana dybowskii (Korea brown frog)
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Family
- Not found
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Gene
- Not found
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Sequence
- FLIGMTQGLICLITRKC
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Sequence Length
- 17
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UniProt Entry
- No entry found
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Protein Existence
- Not found
Activity Information
-
Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
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Target Organism
-
- [Ref.17698251]Gram-positive bacteria: Micrococcus luteus ATCC4698 (MIC=6.25 µg/ml), Staphylococcus aureus KCTC3881 (MIC=15 µg/ml), Bacillus subtilis ATCC6633 (MIC=25 µg/ml), Staphylococcus epidermidis ATCC12228 (MIC=25 µg/ml);
- Gram-negative bacteria: Shigella dysenteriae ATCC9752 (MIC=50 µg/ml), Escherichia coli KCTC2433 (MIC=60 µg/ml), Klebsiella pneumoniae ATCC10031 (MIC=60 µg/ml), Proteus mirabilis ATCC25933 (MIC>100 µg/ml);
- Yeast: Candida albicans ATCC36232 (MIC=100 µg/ml).
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Hemolytic Activity
-
- [Ref:17698251] It has 10.99% hemolytic activity at 100 μg/ml against human red blood cells
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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
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N-terminal Modification
- Free
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C-terminal Modification
- Cyclization (Cys11 and Cys17)
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Nonterminal Modifications and Unusual Amino Acids
- Disulfide bond between Cys11 and Cys17.
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Stereochemistry
- L
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Structure
- Not found
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Structure Description
- Not found
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Helical Wheel Diagram
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PDB ID
- None
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Predicted Structure
- Please click DRAMP01249_predicted_structure.pdb to download.
Physicochemical Information
-
Formula
- C85H148N22O21S3
Absent Amino Acids
- ADEHNPSVWY
Common Amino Acids
- IL
Mass
- 1910.42
PI
- 8.96
Basic Residues
- 2
Acidic Residues
- 0
Hydrophobic Residues
- 7
Net Charge
- +2
-
Boman Index
- 8.14
Hydrophobicity
- 1.206
Aliphatic Index
- 137.65
Half Life
-
- Mammalian:1.1 hour
- Yeast:3 min
- E.coli:2 min
Extinction Coefficient Cystines
- 125
Absorbance 280nm
- 7.81
Polar Residues
- 6
DRAMP01249
Comments Information
Function
- Dybowskin-2 has hemolytic activity against human red blood cells (hRBCs).
Literature Information
- ·Literature 1
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Title
- Purification and characterization of antimicrobial peptides from the skin secretion of Rana dybowskii.
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Pubmed ID
- 17698251
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Reference
- Peptides 2007; 28: 1532-1539.
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Author
- Kim SS, Shim MS, Chung J, Lim DY, Lee BJ.