Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_755 |
| Number of amino acids: | 255 |
| Molecular Weight: | 25250.11 Da |
| Theoretical pI: | 4.51 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 51 | 20% |
| Cysteine CYS (C) | 15 | 5.88% |
| Glutamic Acid GLU (E) | 6 | 2.35% |
| Aspartic Acid ASP (D) | 12 | 4.71% |
| Glycine GLY (G) | 30 | 11.76% |
| Phynylalanine PHE (F) | 11 | 4.31% |
| Isoleucine ILE (I) | 1 | 0.39% |
| Histidine HIS (H) | 0 | 0% |
| Lysine LYS (K) | 3 | 1.18% |
| Methionine MET (M) | 5 | 1.96% |
| Leucine LEU (L) | 16 | 6.27% |
| Asparagine ASN (N) | 7 | 2.75% |
| Glutamine GLN (Q) | 3 | 1.18% |
| Proline PRO (P) | 14 | 5.49% |
| Serine SER (S) | 29 | 11.37% |
| Arginine ARG (R) | 9 | 3.53% |
| Threonine THR (T) | 18 | 7.06% |
| Tryptophan TRP (W) | 3 | 1.18% |
| Valine VAL (V) | 13 | 5.1% |
| Tyrosine TYR (Y) | 9 | 3.53% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1085 |
| Hydrogen | H | 1662 |
| Nitrogen | N | 298 |
| Oxygen | O | 358 |
| Sulphur | S | 20 |
| Formula | C1085H1662N298O358S20 |
| Total Number of Atoms: | 3423 |
| Total number of positively charged residues (ARG + LYS): | 12 |
| 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 30785 Absorption 0.1% (=1 g/l) 1.219, assuming all pairs of CYS residues form cystines Ext. coefficient 29910 Absorption 0.1% (=1 g/l) 1.185, assuming all CYS residues are reduced |
| Aromaticity: | 0.090 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 39.45 This indicates that the protein/peptide is stable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [20.78, 31.37, 30.59] 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: | 60.7843 |
| Grand average of hydropathicity (GRAVY): | 0.21 |