General Information
Activity Information
-
Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
-
Target Organism
-
- [Ref.12074933] Gram-positive bacterium: Staphylococcus aureus (MIC=0.003%);
- Gram-negative bacterium: Escherichia coli (MIC=0.007%);
- Fungus: Candida albicans (MIC=0.015%)
-
Hemolytic Activity
-
- No hemolysis information or data found in the reference(s) presented in this entry
-
Cytotoxicity
-
- Not included yet
-
Binding Target
- Not found
Structure Information
-
Linear/Cyclic
- Not included yet
-
N-terminal Modification
- Not included yet
-
C-terminal Modification
- Not included yet
-
Nonterminal Modifications and Unusual Amino Acids
- Not included yet
-
Stereochemistry
- Not included yet
-
Structure
- No secondary structure
-
Structure Description
- The backbone structure in DPC, well defined between residues 3 and 11, is extended, with two half-turns at residues Lys-5 and Trp-8. The backbone structure in SDS, well defined between residues 5 and 11, is also extended, but lackes the bend in the C-terminal half. Indolicidin in complexes with DPC has a central hydrophobic core composed of proline and tryptophan, which is bracketed by positively charged regions near the peptide termini
-
Helical Wheel Diagram
- 1G8C-> 
-
Predicted Structure
- There is no predicted structure for DRAMP02857.
Physicochemical Information
-
Formula
- C100H131N25O14
Absent Amino Acids
- ACDEFGHMNQSTVY
Common Amino Acids
- W
Mass
- 1907.3
PI
- 12.01
Basic Residues
- 3
Acidic Residues
- 0
Hydrophobic Residues
- 7
Net Charge
- +3
-
Boman Index
- -13.9
Hydrophobicity
- -1.069
Aliphatic Index
- 60
Half Life
-
- Mammalian:20 hour
- Yeast:30 min
- E.coli:>10 hour
Extinction Coefficient Cystines
- 27500
Absorbance 280nm
- 2291.67
Polar Residues
- 0
DRAMP02857
Comments Information
Function
- Potent microbicidal activity; active against Staphylococcus aureus, Escherichia coli and Candida albicans.
Tissue specificity
- Large granules of neutrophils.
PTM
- Contains two disulfide bonds and C-terminal amidation.
Literature Information
- ·Literature 1
-
Title
- Indolicidin, a novel bactericidal tridecapeptide amide from neutrophils.
-
Pubmed ID
- 1537821
-
Reference
- J Biol Chem. 1992 Mar 5;267(7):4292-4295.
-
Author
- Selsted ME, Novotny MJ, Morris WL, Tang YQ, Smith W, Cullor JS.
- ·Literature 2
-
Title
- Structure of the bovine antimicrobial peptide indolicidin bound to dodecylphosphocholine and sodium dodecyl sulfate micelles.
-
Pubmed ID
- 11123901
-
Reference
- Biochemistry. 2000 Dec 26;39(51):15765-74.
-
Author
- Rozek A, Friedrich CL, Hancock RE.
- ·Literature 3
-
Title
- Direct antimicrobial properties of substance P.
-
Pubmed ID
- 12074933
-
Reference
- Life Sci. 2002 Jul 5;71(7):747-50.
-
Author
- Kowalska K, Carr DB, Lipkowski AW.