Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_977 |
| Number of amino acids: | 252 |
| Molecular Weight: | 27265.05 Da |
| Theoretical pI: | 8.15 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 20 | 7.94% |
| Cysteine CYS (C) | 16 | 6.35% |
| Glutamic Acid GLU (E) | 8 | 3.17% |
| Aspartic Acid ASP (D) | 6 | 2.38% |
| Glycine GLY (G) | 22 | 8.73% |
| Phynylalanine PHE (F) | 15 | 5.95% |
| Isoleucine ILE (I) | 8 | 3.17% |
| Histidine HIS (H) | 16 | 6.35% |
| Lysine LYS (K) | 8 | 3.17% |
| Methionine MET (M) | 2 | 0.79% |
| Leucine LEU (L) | 23 | 9.13% |
| Asparagine ASN (N) | 11 | 4.37% |
| Glutamine GLN (Q) | 7 | 2.78% |
| Proline PRO (P) | 19 | 7.54% |
| Serine SER (S) | 24 | 9.52% |
| Arginine ARG (R) | 9 | 3.57% |
| Threonine THR (T) | 15 | 5.95% |
| Tryptophan TRP (W) | 3 | 1.19% |
| Valine VAL (V) | 13 | 5.16% |
| Tyrosine TYR (Y) | 7 | 2.78% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 1212 |
| Hydrogen | H | 1834 |
| Nitrogen | N | 340 |
| Oxygen | O | 345 |
| Sulphur | S | 18 |
| Formula | C1212H1834N340O345S18 |
| Total Number of Atoms: | 3749 |
| Total number of positively charged residues (ARG + LYS): | 17 |
| Total number of negatively charged residues (ASP + GLU): | 14 |
| Extinction Coefficient: | Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water. Ext. coefficient 27930 Absorption 0.1% (=1 g/l) 1.024, assuming all pairs of CYS residues form cystines Ext. coefficient 26930 Absorption 0.1% (=1 g/l) 0.988, assuming all CYS residues are reduced |
| Aromaticity: | 0.099 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 54.48 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [27.38, 30.16, 21.03] 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: | 70.873 |
| Grand average of hydropathicity (GRAVY): | -0.06 |