Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_257 |
| Number of amino acids: | 66 |
| Molecular Weight: | 7490.75 Da |
| Theoretical pI: | 5.22 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 3 | 4.55% |
| Cysteine CYS (C) | 9 | 13.64% |
| Glutamic Acid GLU (E) | 6 | 9.09% |
| Aspartic Acid ASP (D) | 4 | 6.06% |
| Glycine GLY (G) | 1 | 1.52% |
| Phynylalanine PHE (F) | 3 | 4.55% |
| Isoleucine ILE (I) | 3 | 4.55% |
| Histidine HIS (H) | 1 | 1.52% |
| Lysine LYS (K) | 7 | 10.61% |
| Methionine MET (M) | 1 | 1.52% |
| Leucine LEU (L) | 6 | 9.09% |
| Asparagine ASN (N) | 3 | 4.55% |
| Glutamine GLN (Q) | 3 | 4.55% |
| Proline PRO (P) | 3 | 4.55% |
| Serine SER (S) | 2 | 3.03% |
| Arginine ARG (R) | 1 | 1.52% |
| Threonine THR (T) | 5 | 7.58% |
| Tryptophan TRP (W) | 0 | 0% |
| Valine VAL (V) | 4 | 6.06% |
| Tyrosine TYR (Y) | 1 | 1.52% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 321 |
| Hydrogen | H | 518 |
| Nitrogen | N | 84 |
| Oxygen | O | 101 |
| Sulphur | S | 10 |
| Formula | C321H518N84O101S10 |
| Total Number of Atoms: | 1034 |
| Total number of positively charged residues (ARG + LYS): | 8 |
| Total number of negatively charged residues (ASP + GLU): | 10 |
| Extinction Coefficient: | This protein does not contain any Tryptophan residues. Experience shows that this could result in more than 10% error in the computed extinction coefficient. Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 1990 Absorption 0.1% (=1 g/l) 0.266, assuming all pairs of CYS residues form cystines Ext. coefficient 1490 Absorption 0.1% (=1 g/l) 0.199, assuming all CYS residues are reduced |
| Aromaticity: | 0.061 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 51.44 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [25.76, 13.64, 24.24] 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: | 75.303 |
| Grand average of hydropathicity (GRAVY): | -0.17 |