Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_1368 |
| Number of amino acids: | 255 |
| Molecular Weight: | 26547.53 Da |
| Theoretical pI: | 4.53 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 17 | 6.67% |
| Cysteine CYS (C) | 17 | 6.67% |
| Glutamic Acid GLU (E) | 7 | 2.75% |
| Aspartic Acid ASP (D) | 11 | 4.31% |
| Glycine GLY (G) | 28 | 10.98% |
| Phynylalanine PHE (F) | 14 | 5.49% |
| Isoleucine ILE (I) | 11 | 4.31% |
| Histidine HIS (H) | 1 | 0.39% |
| Lysine LYS (K) | 5 | 1.96% |
| Methionine MET (M) | 3 | 1.18% |
| Leucine LEU (L) | 15 | 5.88% |
| Asparagine ASN (N) | 8 | 3.14% |
| Glutamine GLN (Q) | 10 | 3.92% |
| Proline PRO (P) | 18 | 7.06% |
| Serine SER (S) | 37 | 14.51% |
| Arginine ARG (R) | 6 | 2.35% |
| Threonine THR (T) | 26 | 10.2% |
| Tryptophan TRP (W) | 2 | 0.78% |
| Valine VAL (V) | 9 | 3.53% |
| Tyrosine TYR (Y) | 10 | 3.92% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1150 |
| Hydrogen | H | 1750 |
| Nitrogen | N | 300 |
| Oxygen | O | 383 |
| Sulphur | S | 20 |
| Formula | C1150H1750N300O383S20 |
| Total Number of Atoms: | 3603 |
| Total number of positively charged residues (ARG + LYS): | 11 |
| Total number of negatively charged residues (ASP + GLU): | 18 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 26900 Absorption 0.1% (=1 g/l) 1.013, assuming all pairs of CYS residues form cystines Ext. coefficient 25900 Absorption 0.1% (=1 g/l) 0.976, assuming all CYS residues are reduced |
| Aromaticity: | 0.102 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 56.34 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [23.92, 35.69, 16.47] 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: | 56.6667 |
| Grand average of hydropathicity (GRAVY): | -0.06 |