Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_968 |
| Number of amino acids: | 176 |
| Molecular Weight: | 18435.44 Da |
| Theoretical pI: | 4.43 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 19 | 10.8% |
| Cysteine CYS (C) | 10 | 5.68% |
| Glutamic Acid GLU (E) | 2 | 1.14% |
| Aspartic Acid ASP (D) | 10 | 5.68% |
| Glycine GLY (G) | 16 | 9.09% |
| Phynylalanine PHE (F) | 10 | 5.68% |
| Isoleucine ILE (I) | 5 | 2.84% |
| Histidine HIS (H) | 2 | 1.14% |
| Lysine LYS (K) | 3 | 1.7% |
| Methionine MET (M) | 2 | 1.14% |
| Leucine LEU (L) | 12 | 6.82% |
| Asparagine ASN (N) | 18 | 10.23% |
| Glutamine GLN (Q) | 6 | 3.41% |
| Proline PRO (P) | 12 | 6.82% |
| Serine SER (S) | 14 | 7.95% |
| Arginine ARG (R) | 3 | 1.7% |
| Threonine THR (T) | 16 | 9.09% |
| Tryptophan TRP (W) | 3 | 1.7% |
| Valine VAL (V) | 9 | 5.11% |
| Tyrosine TYR (Y) | 4 | 2.27% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 801 |
| Hydrogen | H | 1209 |
| Nitrogen | N | 219 |
| Oxygen | O | 259 |
| Sulphur | S | 12 |
| Formula | C801H1209N219O259S12 |
| Total Number of Atoms: | 2500 |
| Total number of positively charged residues (ARG + LYS): | 6 |
| Total number of negatively charged residues (ASP + GLU): | 12 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 23085 Absorption 0.1% (=1 g/l) 1.252, assuming all pairs of CYS residues form cystines Ext. coefficient 22460 Absorption 0.1% (=1 g/l) 1.218, assuming all CYS residues are reduced |
| Aromaticity: | 0.097 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 28.16 This indicates that the protein/peptide is stable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [24.43, 34.09, 19.89] 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: | 63.2955 |
| Grand average of hydropathicity (GRAVY): | -0.09 |