Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_867 |
| Number of amino acids: | 250 |
| Molecular Weight: | 25406.47 Da |
| Theoretical pI: | 5.05 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 29 | 11.6% |
| Cysteine CYS (C) | 17 | 6.8% |
| Glutamic Acid GLU (E) | 6 | 2.4% |
| Aspartic Acid ASP (D) | 13 | 5.2% |
| Glycine GLY (G) | 35 | 14% |
| Phynylalanine PHE (F) | 11 | 4.4% |
| Isoleucine ILE (I) | 6 | 2.4% |
| Histidine HIS (H) | 4 | 1.6% |
| Lysine LYS (K) | 9 | 3.6% |
| Methionine MET (M) | 3 | 1.2% |
| Leucine LEU (L) | 17 | 6.8% |
| Asparagine ASN (N) | 9 | 3.6% |
| Glutamine GLN (Q) | 3 | 1.2% |
| Proline PRO (P) | 13 | 5.2% |
| Serine SER (S) | 24 | 9.6% |
| Arginine ARG (R) | 4 | 1.6% |
| Threonine THR (T) | 20 | 8% |
| Tryptophan TRP (W) | 3 | 1.2% |
| Valine VAL (V) | 14 | 5.6% |
| Tyrosine TYR (Y) | 10 | 4% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1105 |
| Hydrogen | H | 1682 |
| Nitrogen | N | 294 |
| Oxygen | O | 355 |
| Sulphur | S | 20 |
| Formula | C1105H1682N294O355S20 |
| Total Number of Atoms: | 3456 |
| Total number of positively charged residues (ARG + LYS): | 13 |
| Total number of negatively charged residues (ASP + GLU): | 19 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 32400 Absorption 0.1% (=1 g/l) 1.275, assuming all pairs of CYS residues form cystines Ext. coefficient 31400 Absorption 0.1% (=1 g/l) 1.236, assuming all CYS residues are reduced |
| Aromaticity: | 0.096 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 44.78 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [24.40, 32.40, 22.00] 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: | 63.72 |
| Grand average of hydropathicity (GRAVY): | 0.09 |