General Information
-
DRAMP ID
- DRAMP01844
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Peptide Name
- Ascaphin-5 (Frogs, amphibians, animals)
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Source
- Ascaphus truei (Coastal tailed frog)
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Family
- Belongs to the ascaphin family
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Gene
- Not found
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Sequence
- GIKDWIKGAAKKLIKTVASNIANQ
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Sequence Length
- 24
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UniProt Entry
- P0CJ29
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Protein Existence
- Protein level
Activity Information
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Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, Antifungal
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Target Organism
-
- [Ref.15207717]Gram-negative bacteria: Escherichia coli (MIC=6 µM), Pseudomonas aeruginosa (MIC=13 µM), Enterobacter cloacae (MIC=6 µM), Klebsiella pneumoniae (MIC=13 µM), Proteus mirabilis (MIC>100 µM);
- Gram-positive bacteria: Staphylococcus aureus (MIC=50 µM), Staphylococcus epidermidis (MIC=13 µM), Enterococcus faecalis (MIC>100 µM), Streptococcus Group B (MIC=6 µM);
- Yeast: Candida albicans (MIC=100 µM).
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Hemolytic Activity
-
- [Ref.15207717]Not found
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Cytotoxicity
-
- Not included yet
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Binding Target
- Not found
Structure Information
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Linear/Cyclic
- Not included yet
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N-terminal Modification
- Not included yet
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C-terminal Modification
- Not included yet
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Nonterminal Modifications and Unusual Amino Acids
- Not included yet
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Stereochemistry
- Not included yet
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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 DRAMP01844_predicted_structure.pdb to download.
Physicochemical Information
-
Formula
- C116H199N33O32
Absent Amino Acids
- CEFHMPRY
Common Amino Acids
- K
Mass
- 2568.06
PI
- 10.18
Basic Residues
- 5
Acidic Residues
- 1
Hydrophobic Residues
- 11
Net Charge
- +4
-
Boman Index
- -21.17
Hydrophobicity
- -0.146
Aliphatic Index
- 110
Half Life
-
- Mammalian:30 hour
- Yeast:>20 hour
- E.coli:>10 hour
Extinction Coefficient Cystines
- 5500
Absorbance 280nm
- 239.13
Polar Residues
- 6
DRAMP01844
Comments Information
Function
- Antimicrobial peptide that shows higher potency against Gram-negative bacteria than against Gram-positive bacteria. Tissue specificity
Literature Information
- ·Literature 1
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Title
- The ascaphins: a family of antimicrobial peptides from the skin secretions of the most primitive extant frog, Ascaphus truei.
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Pubmed ID
- 15207717
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Reference
- Biochem Biophys Res Commun. 2004 Jul 16;320(1):170-175.
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Author
- Conlon JM, Sonnevend A, Davidson C, Smith DD, Nielsen PF.