Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_991 |
| Number of amino acids: | 251 |
| Molecular Weight: | 25028.29 Da |
| Theoretical pI: | 4.57 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 40 | 15.94% |
| Cysteine CYS (C) | 17 | 6.77% |
| Glutamic Acid GLU (E) | 5 | 1.99% |
| Aspartic Acid ASP (D) | 12 | 4.78% |
| Glycine GLY (G) | 34 | 13.55% |
| Phynylalanine PHE (F) | 11 | 4.38% |
| Isoleucine ILE (I) | 4 | 1.59% |
| Histidine HIS (H) | 0 | 0% |
| Lysine LYS (K) | 2 | 0.8% |
| Methionine MET (M) | 2 | 0.8% |
| Leucine LEU (L) | 22 | 8.76% |
| Asparagine ASN (N) | 6 | 2.39% |
| Glutamine GLN (Q) | 2 | 0.8% |
| Proline PRO (P) | 18 | 7.17% |
| Serine SER (S) | 20 | 7.97% |
| Arginine ARG (R) | 10 | 3.98% |
| Threonine THR (T) | 21 | 8.37% |
| Tryptophan TRP (W) | 3 | 1.2% |
| Valine VAL (V) | 14 | 5.58% |
| Tyrosine TYR (Y) | 8 | 3.19% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1092 |
| Hydrogen | H | 1684 |
| Nitrogen | N | 294 |
| Oxygen | O | 343 |
| Sulphur | S | 19 |
| Formula | C1092H1684N294O343S19 |
| Total Number of Atoms: | 3432 |
| Total number of positively charged residues (ARG + LYS): | 12 |
| Total number of negatively charged residues (ASP + GLU): | 17 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 29420 Absorption 0.1% (=1 g/l) 1.175, assuming all pairs of CYS residues form cystines Ext. coefficient 28420 Absorption 0.1% (=1 g/l) 1.136, assuming all CYS residues are reduced |
| Aromaticity: | 0.088 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 43.24 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [24.70, 31.08, 27.49] 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: | 72.51 |
| Grand average of hydropathicity (GRAVY): | 0.33 |