Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_1397 |
| Number of amino acids: | 172 |
| Molecular Weight: | 17491.38 Da |
| Theoretical pI: | 4.33 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 18 | 10.47% |
| Cysteine CYS (C) | 10 | 5.81% |
| Glutamic Acid GLU (E) | 2 | 1.16% |
| Aspartic Acid ASP (D) | 8 | 4.65% |
| Glycine GLY (G) | 23 | 13.37% |
| Phynylalanine PHE (F) | 10 | 5.81% |
| Isoleucine ILE (I) | 9 | 5.23% |
| Histidine HIS (H) | 2 | 1.16% |
| Lysine LYS (K) | 1 | 0.58% |
| Methionine MET (M) | 2 | 1.16% |
| Leucine LEU (L) | 10 | 5.81% |
| Asparagine ASN (N) | 10 | 5.81% |
| Glutamine GLN (Q) | 10 | 5.81% |
| Proline PRO (P) | 11 | 6.4% |
| Serine SER (S) | 19 | 11.05% |
| Arginine ARG (R) | 3 | 1.74% |
| Threonine THR (T) | 13 | 7.56% |
| Tryptophan TRP (W) | 2 | 1.16% |
| Valine VAL (V) | 6 | 3.49% |
| Tyrosine TYR (Y) | 3 | 1.74% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 755 |
| Hydrogen | H | 1148 |
| Nitrogen | N | 208 |
| Oxygen | O | 248 |
| Sulphur | S | 12 |
| Formula | C755H1148N208O248S12 |
| Total Number of Atoms: | 2371 |
| Total number of positively charged residues (ARG + LYS): | 4 |
| Total number of negatively charged residues (ASP + GLU): | 10 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 16095 Absorption 0.1% (=1 g/l) 0.920, assuming all pairs of CYS residues form cystines Ext. coefficient 15470 Absorption 0.1% (=1 g/l) 0.884, assuming all CYS residues are reduced |
| Aromaticity: | 0.087 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 42.85 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [23.26, 36.63, 18.60] 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: | 63.6628 |
| Grand average of hydropathicity (GRAVY): | 0.04 |