Identity
- Class
- Antimicrobial
- Molecular weight
- 1906 Da
- Residues
- 13
- Heavy atoms
- 139
- Reference slug
- indolicidin
These are published properties of the molecule, given for identification. Values we cannot confirm are omitted rather than estimated. What these terms mean.
What this compound is
Thirteen residues, five of which are tryptophan and three proline. That composition is extraordinary: no other peptide here is close, and the mass of indole rings makes it visually unmistakable.
Sequence
| 1 | ILPWKWPWWP WRR |
|---|
- Three-letter code
- Ile-Leu-Pro-Trp-Lys-Trp-Pro-Trp-Trp-Pro-Trp-Arg-Arg
The one-letter code gives the amino-acid backbone. Terminal modifications, where a compound carries them, are accounted for in the molecular weight above but are not visible in the letters.
Residue composition
Counted directly from the sequence above. Indolicidin is built from 6 of the twenty standard amino acids across 13 positions.
By residue
| Residue | Code | Count | Share |
|---|---|---|---|
| Tryptophan | W · Trp | 5 | 38.5% |
| Proline | P · Pro | 3 | 23.1% |
| Arginine | R · Arg | 2 | 15.4% |
| Isoleucine | I · Ile | 1 | 7.7% |
| Lysine | K · Lys | 1 | 7.7% |
| Leucine | L · Leu | 1 | 7.7% |
By side-chain class
Nonpolar, aliphatic
5 · 38.5%
I L P
Aromatic
5 · 38.5%
W
Positively charged
3 · 23.1%
K R
Side-chain classes follow the standard grouping of the twenty proteinogenic amino acids. Composition is arithmetic over the published sequence and says nothing about how the molecule behaves.
Others in Antimicrobial
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21 residues · 2435 Da
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Cecropin B
35 residues · 3835 Da
Thirty-five residues in two helices joined by a hinge: a charged one at the front and a hydropho…
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This is a reference entry. Sequence, residue count, molecular weight and atom count are published properties of the molecule, given for identification. Nothing on this page describes an application, benefit, dose, route or outcome, and nothing here should be read as an offer to supply or as guidance for use in a person or an animal. Materials sold by PepXtide are for laboratory research use only, are not for human or animal consumption, and have not been evaluated by the FDA.