Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_1382 |
| Number of amino acids: | 251 |
| Molecular Weight: | 27541.04 Da |
| Theoretical pI: | 6.4 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 15 | 5.98% |
| Cysteine CYS (C) | 17 | 6.77% |
| Glutamic Acid GLU (E) | 9 | 3.59% |
| Aspartic Acid ASP (D) | 9 | 3.59% |
| Glycine GLY (G) | 29 | 11.55% |
| Phynylalanine PHE (F) | 15 | 5.98% |
| Isoleucine ILE (I) | 6 | 2.39% |
| Histidine HIS (H) | 4 | 1.59% |
| Lysine LYS (K) | 9 | 3.59% |
| Methionine MET (M) | 5 | 1.99% |
| Leucine LEU (L) | 12 | 4.78% |
| Asparagine ASN (N) | 15 | 5.98% |
| Glutamine GLN (Q) | 9 | 3.59% |
| Proline PRO (P) | 21 | 8.37% |
| Serine SER (S) | 12 | 4.78% |
| Arginine ARG (R) | 8 | 3.19% |
| Threonine THR (T) | 26 | 10.36% |
| Tryptophan TRP (W) | 10 | 3.98% |
| Valine VAL (V) | 11 | 4.38% |
| Tyrosine TYR (Y) | 9 | 3.59% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1225 |
| Hydrogen | H | 1798 |
| Nitrogen | N | 326 |
| Oxygen | O | 359 |
| Sulphur | S | 22 |
| Formula | C1225H1798N326O359S22 |
| Total Number of Atoms: | 3730 |
| Total number of positively charged residues (ARG + LYS): | 17 |
| 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 69410 Absorption 0.1% (=1 g/l) 2.520, assuming all pairs of CYS residues form cystines Ext. coefficient 68410 Absorption 0.1% (=1 g/l) 2.484, assuming all CYS residues are reduced |
| Aromaticity: | 0.135 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 41.28 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [25.10, 30.68, 16.33] 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: | 46.6534 |
| Grand average of hydropathicity (GRAVY): | -0.34 |