General Information
-
DRAMP ID
- DRAMP02768
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Peptide Name
- Pilosulin-1 (Myr b I; ants, insects, animals)
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Source
- Myrmecia banksi (Jack jumper ant) (Australian jumper ant)
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Family
- Belongs to the pilosulin family
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Gene
- Not found
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Sequence
- GLGSVFGRLARILGRVIPKVAKKLGPKVAKVLPKVMKEAIPMAVEMAKSQEEQQPQ
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Sequence Length
- 56
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Protein Existence
- Protein level
Activity Information
-
Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, Antifungal
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Target Organism
-
- [Ref.9813247]Gram-positive bacteria: Micrococcus luteus (MIC=0.5 µM), Enterococcus spp.I-11305b (MIC=2 µM), Enterococcus spp. I-11054 (MIC=2 µM), Staphylococcus simulans 22 (MIC=2 µM), S. haemolyticus I-10925 (MIC=2 µM), S. epidermidis LT1324 (MIC=2 µM), S. aureuss 5185 (MI=2 µM), S. aureuss methicillin-sensitive I-11574 (MIC=2 µM), S. aureuss (MRSA) LT1338 (MIC=3 µM), S. aureuss (MRSA) LT1334 (MIC=1.5 µM);
- Gram-negative bacteria: Citrobacter freundii I-11090 (MIC=2 µM), Klebsiella pneumoniae I-10910 (MIC=2 µM), Escherichia coli I-11276b (MIC=4 µM), E. coli O-19592 (MIC=2 µM), Stenotrophomonas maltophilia O-16451 (MIC=2 µM), S. maltophila I-10717 (MIC=2 µM), Pseudomonas aeruginosa 4991 (MIC=4 µM), Pseudomonas aeruginosa I-10968 (MIC=4 µM);
- Fungi: Candida albicans I-11301 (MIC=4 µM), Candida albicans I-11134 (MIC>4 µM).
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Hemolytic Activity
-
- [Ref.9813247]Complete lysis in the presence of pilosulin 1 was obtained at a concentration of 40 μM with evidence of partial lysis visible down to 1.25 μM
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Cytotoxicity
-
- Not included yet
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Binding Target
- IgE
Structure Information
-
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
- Alpha helix
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Structure Description
- Not found
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Helical Wheel Diagram
-
PDB ID
- None
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Predicted Structure
- There is no predicted structure for DRAMP02768.
Physicochemical Information
-
Formula
- C272H471N77O71S3
Absent Amino Acids
- CDHNTWY
Common Amino Acids
- KV
Mass
- 6052.39
PI
- 10.45
Basic Residues
- 11
Acidic Residues
- 4
Hydrophobic Residues
- 22
Net Charge
- +7
-
Boman Index
- -52.13
Hydrophobicity
- -0.055
Aliphatic Index
- 102.68
Half Life
-
- Mammalian:30 hour
- Yeast:>20 hour
- E.coli:>10 hour
Extinction Coefficient Cystines
- 0
Absorbance 280nm
- 0
Polar Residues
- 7
DRAMP02768
Comments Information
Function
- Has strong cytotoxic and hemolytic activities. Is more potent against mononuclear leukocytes than against granulocytes. The synthesized peptide 57-76 shows a potent and broad spectrum antimicrobial activity against both Gram-positive and Gram-negative bacteria, and also against the fungus C. albicans. Adopts an alpha-helical structure.
Tissue specificity
- Expressed by the venom gland.
Allergenic properties
- Causes an allergic reaction in human.
Literature Information
- ·Literature 1
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Title
- Identification and optimization of an antimicrobial peptide from the ant venom toxin pilosulin.
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Pubmed ID
- 9813247
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Reference
- Arch Biochem Biophys. 2005 Feb 15;434(2):358-364.
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Author
- Zelezetsky I, Pag U, Antcheva N, Sahl HG, Tossi A.
- ·Literature 2
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Title
- Flow cytometric analysis of cell killing by the jumper ant venom peptide pilosulin 1.
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Pubmed ID
- 9701394
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Reference
- Cytometry. 1998 Aug 1;32(4):268-273.
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Author
- King MA, Wu QX, Donovan GR, Baldo BA.
- ·Literature 3
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Title
- Identification and optimization of an antimicrobial peptide from the ant venom toxin pilosulin.
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Pubmed ID
- 15639237
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Reference
- Arch Biochem Biophys. 2005 Feb 15;434(2):358-364.
-
Author
- Zelezetsky I, Pag U, Antcheva N, Sahl HG, Tossi A.
- ·Literature 4
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Title
- Expression of jumper ant (Myrmecia pilosula) venom allergens: post-translational processing of allergen gene products.
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Pubmed ID
- 8866004
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Reference
- Biochem Mol Biol Int. 1996 Aug;39(5):877-885.
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Author
- Donovan GR, Street MD, Tetaz T, Smith AI, Alewood D, Alewood P, Sutherland SK, Baldo BA.