Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_2553 |
| Number of amino acids: | 40 |
| Molecular Weight: | 4223.77 Da |
| Theoretical pI: | 8.75 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 3 | 7.5% |
| Cysteine CYS (C) | 8 | 20% |
| Glutamic Acid GLU (E) | 0 | 0% |
| Aspartic Acid ASP (D) | 0 | 0% |
| Glycine GLY (G) | 7 | 17.5% |
| Phynylalanine PHE (F) | 0 | 0% |
| Isoleucine ILE (I) | 0 | 0% |
| Histidine HIS (H) | 0 | 0% |
| Lysine LYS (K) | 0 | 0% |
| Methionine MET (M) | 0 | 0% |
| Leucine LEU (L) | 2 | 5% |
| Asparagine ASN (N) | 1 | 2.5% |
| Glutamine GLN (Q) | 5 | 12.5% |
| Proline PRO (P) | 0 | 0% |
| Serine SER (S) | 5 | 12.5% |
| Arginine ARG (R) | 4 | 10% |
| Threonine THR (T) | 1 | 2.5% |
| Tryptophan TRP (W) | 1 | 2.5% |
| Valine VAL (V) | 0 | 0% |
| Tyrosine TYR (Y) | 2 | 5% |
| As there is at least one ambiguous position (B, J, X or Z) in the sequence considered, the atomic composition cannot be computed. |
| Total number of positively charged residues (ARG + LYS): | 4 |
| Total number of negatively charged residues (ASP + GLU): | 0 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 8980 Absorption 0.1% (=1 g/l) 2.126, assuming all pairs of CYS residues form cystines Ext. coefficient 8480 Absorption 0.1% (=1 g/l) 2.008, assuming all CYS residues are reduced |
| Aromaticity: | 0.075 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 20.84 This indicates that the protein/peptide is stable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [12.50, 32.50, 12.50] Amino acids in helix: V, I, Y, F, W, L || Amino acids in turn: N, P, G, S || Amino acids in sheet: E, M, A, L |
| Aliphatic index: | 27 |
| Grand average of hydropathicity (GRAVY): | 0.00 |