Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_4438 |
| Number of amino acids: | 291 |
| Molecular Weight: | 30174.73 Da |
| Theoretical pI: | 9.43 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 32 | 11% |
| Cysteine CYS (C) | 8 | 2.75% |
| Glutamic Acid GLU (E) | 2 | 0.69% |
| Aspartic Acid ASP (D) | 9 | 3.09% |
| Glycine GLY (G) | 48 | 16.49% |
| Phynylalanine PHE (F) | 13 | 4.47% |
| Isoleucine ILE (I) | 4 | 1.37% |
| Histidine HIS (H) | 12 | 4.12% |
| Lysine LYS (K) | 4 | 1.37% |
| Methionine MET (M) | 3 | 1.03% |
| Leucine LEU (L) | 22 | 7.56% |
| Asparagine ASN (N) | 16 | 5.5% |
| Glutamine GLN (Q) | 14 | 4.81% |
| Proline PRO (P) | 14 | 4.81% |
| Serine SER (S) | 25 | 8.59% |
| Arginine ARG (R) | 16 | 5.5% |
| Threonine THR (T) | 12 | 4.12% |
| Tryptophan TRP (W) | 8 | 2.75% |
| Valine VAL (V) | 23 | 7.9% |
| Tyrosine TYR (Y) | 6 | 2.06% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1326 |
| Hydrogen | H | 2015 |
| Nitrogen | N | 405 |
| Oxygen | O | 387 |
| Sulphur | S | 11 |
| Formula | C1326H2015N405O387S11 |
| Total Number of Atoms: | 4144 |
| Total number of positively charged residues (ARG + LYS): | 20 |
| Total number of negatively charged residues (ASP + GLU): | 11 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 53440 Absorption 0.1% (=1 g/l) 1.771, assuming all pairs of CYS residues form cystines Ext. coefficient 52940 Absorption 0.1% (=1 g/l) 1.754, assuming all CYS residues are reduced |
| Aromaticity: | 0.093 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 42.74 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [26.12, 35.40, 20.27] 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: | 68.7629 |
| Grand average of hydropathicity (GRAVY): | -0.13 |