Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_781 |
| Number of amino acids: | 159 |
| Molecular Weight: | 15950.9 Da |
| Theoretical pI: | 4.59 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 20 | 12.58% |
| Cysteine CYS (C) | 8 | 5.03% |
| Glutamic Acid GLU (E) | 1 | 0.63% |
| Aspartic Acid ASP (D) | 7 | 4.4% |
| Glycine GLY (G) | 22 | 13.84% |
| Phynylalanine PHE (F) | 6 | 3.77% |
| Isoleucine ILE (I) | 5 | 3.14% |
| Histidine HIS (H) | 2 | 1.26% |
| Lysine LYS (K) | 1 | 0.63% |
| Methionine MET (M) | 4 | 2.52% |
| Leucine LEU (L) | 13 | 8.18% |
| Asparagine ASN (N) | 9 | 5.66% |
| Glutamine GLN (Q) | 4 | 2.52% |
| Proline PRO (P) | 8 | 5.03% |
| Serine SER (S) | 15 | 9.43% |
| Arginine ARG (R) | 3 | 1.89% |
| Threonine THR (T) | 16 | 10.06% |
| Tryptophan TRP (W) | 3 | 1.89% |
| Valine VAL (V) | 9 | 5.66% |
| Tyrosine TYR (Y) | 3 | 1.89% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 689 |
| Hydrogen | H | 1067 |
| Nitrogen | N | 189 |
| Oxygen | O | 223 |
| Sulphur | S | 12 |
| Formula | C689H1067N189O223S12 |
| Total Number of Atoms: | 2180 |
| Total number of positively charged residues (ARG + LYS): | 4 |
| Total number of negatively charged residues (ASP + GLU): | 8 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 21470 Absorption 0.1% (=1 g/l) 1.346, assuming all pairs of CYS residues form cystines Ext. coefficient 20970 Absorption 0.1% (=1 g/l) 1.315, 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 : 39.87 This indicates that the protein/peptide is stable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [24.53, 33.96, 23.90] 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: | 73.1446 |
| Grand average of hydropathicity (GRAVY): | 0.26 |