Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_1274 |
| Number of amino acids: | 255 |
| Molecular Weight: | 26265.9 Da |
| Theoretical pI: | 4.53 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 22 | 8.63% |
| Cysteine CYS (C) | 16 | 6.27% |
| Glutamic Acid GLU (E) | 7 | 2.75% |
| Aspartic Acid ASP (D) | 15 | 5.88% |
| Glycine GLY (G) | 31 | 12.16% |
| Phynylalanine PHE (F) | 12 | 4.71% |
| Isoleucine ILE (I) | 4 | 1.57% |
| Histidine HIS (H) | 0 | 0% |
| Lysine LYS (K) | 7 | 2.75% |
| Methionine MET (M) | 3 | 1.18% |
| Leucine LEU (L) | 12 | 4.71% |
| Asparagine ASN (N) | 5 | 1.96% |
| Glutamine GLN (Q) | 5 | 1.96% |
| Proline PRO (P) | 18 | 7.06% |
| Serine SER (S) | 37 | 14.51% |
| Arginine ARG (R) | 8 | 3.14% |
| Threonine THR (T) | 27 | 10.59% |
| Tryptophan TRP (W) | 3 | 1.18% |
| Valine VAL (V) | 11 | 4.31% |
| Tyrosine TYR (Y) | 12 | 4.71% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1130 |
| Hydrogen | H | 1707 |
| Nitrogen | N | 299 |
| Oxygen | O | 386 |
| Sulphur | S | 19 |
| Formula | C1130H1707N299O386S19 |
| Total Number of Atoms: | 3541 |
| Total number of positively charged residues (ARG + LYS): | 15 |
| Total number of negatively charged residues (ASP + GLU): | 22 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 35380 Absorption 0.1% (=1 g/l) 1.347, assuming all pairs of CYS residues form cystines Ext. coefficient 34380 Absorption 0.1% (=1 g/l) 1.309, assuming all CYS residues are reduced |
| Aromaticity: | 0.106 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 58.16 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [21.18, 35.69, 17.25] 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: | 45.6079 |
| Grand average of hydropathicity (GRAVY): | -0.21 |