General Information
-
DRAMP ID
- DRAMP03288
-
Peptide Name
- Ostricacin-4 (Beta-defensin 8; Birds, animals)
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Source
- Struthio camelus (Ostrich)
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Family
- Belongs to the beta-defensin family
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Gene
- Not found
-
Sequence
- LPVNEAQCRQVGGYCGLRICNFPSRFLGLCTRNHPCCSRVWV
-
Sequence Length
- 42
-
UniProt Entry
- P85116
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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-positive bacterium: Staphylococcus aureus 1056-MRSA (MIC=11.48 µg/ml);
- Gram-negative bacterium: Escherichia coli O157:H7 (MIC=12.03 µg/ml).
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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
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N-terminal Modification
- Free
-
C-terminal Modification
- Free
-
Nonterminal Modifications and Unusual Amino Acids
- Disulfide bonds between Cys8 and Cys36,Cys15 and Cys30,Cys20 and Cys37.
-
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 DRAMP03288_predicted_structure.pdb to download.
Physicochemical Information
-
Formula
- C205H323N65O54S6
Absent Amino Acids
- DKM
Common Amino Acids
- C
Mass
- 4754.58
PI
- 8.98
Basic Residues
- 6
Acidic Residues
- 1
Hydrophobic Residues
- 13
Net Charge
- +5
-
Boman Index
- -64.28
Hydrophobicity
- 0.031
Aliphatic Index
- 76.43
Half Life
-
- Mammalian:5.5 hour
- Yeast:3 min
- E.coli:2 min
Extinction Coefficient Cystines
- 7365
Absorbance 280nm
- 179.63
Polar Residues
- 17
DRAMP03288
Comments Information
PTM
- Contains three disulfide bonds 8-36; 15-30; 20-37.
Literature Information
- ·Literature 1
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Title
- Identification of three novel ostricacins: an update on the phylogenetic perspective of beta-defensins.
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Pubmed ID
- 16459058
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Reference
- Int J Antimicrob Agents. 2006 Mar;27(3):229-235.
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Author
- Sugiarto H, Yu PL.