General Information
-
DRAMP ID
- DRAMP01555
-
Peptide Name
- Caerin-1.5 (Frogs, amphibians, animals)
-
Source
- Litoria caerulea (Green tree frog)
-
Family
- Belongs to the frog skin active peptide family (Caerin subfamily)
-
Gene
- Not found
-
Sequence
- GLLSVLGSVVKHVIPHVVPVIAEHL
-
Sequence Length
- 25
-
UniProt Entry
- P56230
-
Protein Existence
- Protein level
-
SMILES
- CC[C@@H](C)[C@H](NC(=O)[C@@H](NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](Cc1c[nH]cn1)NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](Cc1c[nH]cn1)NC(=O)[C@H](CCCCN)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)CN)C(C)C)C(C)C)C(C)C)C(C)C)[C@H](C)CC)C(C)C)C(C)C)C(C)C)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](CC(C)C)C(N)=O
Activity Information
-
Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-,Antiviral
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Target Organism
-
- [Ref.15203252]Gram-positive bacteria:
Target Organism Activity Bacillus cereus MIC=50 µg/ml Leuconostoc lactis MIC=3 µg/ml Listeria innocua MIC=50 µg/ml Micrococcus luteus MIC=12 µg/ml Staphylococcus aureus MIC=25 µg/ml Staphylococcus epidermis MIC=25 µg/ml Streptococcus uberis (MIC=50 µg/ml); - - Gram-negative bacterium:
Target Organism Activity Pasteurella multocida MIC=25 µg/ml - [Ref.26026377]Virus:
Target Organism Activity HIV: inhibition of HIV Pseudovirus (PsV) infection in CD4+ T cells IC50=3 µM
- [Ref.15203252]Gram-positive bacteria:
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Hemolytic Activity
-
- No hemolysis information or data found in the reference(s) presented in this entry
-
Cytotoxicity
-
- [Ref.26026377]Human endocervical cells End1/E6E7:50% cell death at 12.5 µM.
-
Binding Target
- Not found
Structure Information
Physicochemical Information
-
Formula
- C123H206N32O30
Absent Amino Acids
- CDFMNQRTWY
Common Amino Acids
- V
Mass
- 2613.19
PI
- 7.02
Basic Residues
- 4
Acidic Residues
- 1
Hydrophobic Residues
- 14
Net Charge
- +3
-
Boman Index
- 28.35
Hydrophobicity
- 1.312
Aliphatic Index
- 178.8
Half Life
-
- Mammalian:30 hour
- Yeast:>20 hour
- E.coli:>10 hour
Extinction Coefficient Cystines
- 0
Absorbance 280nm
- 0
Polar Residues
- 4
DRAMP01555
Comments Information
Function
- Antibacterial peptide, that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Tissue specificity
- Expressed by the skin parotoid and/or rostral glands.
Domain
- Contains two amphipathic alpha helix regions separated by a region of less-defined helicity and greater flexibility (By similarity).
PTM
- C-terminal amidation.
Literature Information
- ·Literature 1
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Title
- Inhibition of HIV infection by caerin 1 antimicrobial peptides.
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Pubmed ID
- 26026377
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Reference
- Peptides. 2015 Sep;71:296-303.
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Author
- VanCompernolle S, Smith PB, Bowie JH, Tyler MJ, Unutmaz D, Rollins-Smith LA.
- ·Literature 2
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Title
- Host-defence peptides of Australian anurans: structure, mechanism of action and evolutionary significance.
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Pubmed ID
- 15203252
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Reference
- Peptides. 2004 Jun;25(6):1035-1054.
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Author
- Apponyi MA, Pukala TL, Brinkworth CS, Maselli VM, Bowie JH, Tyler MJ, Booker GW, Wallace JC, Carver JA, Separovic F, Doyle J, Llewellyn LE.
- ·Literature 3
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Title
- Peptides from Australian frogs. The structures of the caerins from Litoria caerula.
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Pubmed ID
- PubMed ID is not available
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Reference
- J. Chem. Res. 1993; 138: 910-936.
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Author
- Stone DJM, Waugh RJ, Bowie JH, Wallace JC, Tyler MJ.
