Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_1261 |
| Number of amino acids: | 207 |
| Molecular Weight: | 21261.67 Da |
| Theoretical pI: | 6.28 |
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 21 | 10.14% |
| Cysteine CYS (C) | 18 | 8.7% |
| Glutamic Acid GLU (E) | 13 | 6.28% |
| Aspartic Acid ASP (D) | 1 | 0.48% |
| Glycine GLY (G) | 22 | 10.63% |
| Phynylalanine PHE (F) | 6 | 2.9% |
| Isoleucine ILE (I) | 4 | 1.93% |
| Histidine HIS (H) | 0 | 0% |
| Lysine LYS (K) | 11 | 5.31% |
| Methionine MET (M) | 4 | 1.93% |
| Leucine LEU (L) | 23 | 11.11% |
| Asparagine ASN (N) | 12 | 5.8% |
| Glutamine GLN (Q) | 3 | 1.45% |
| Proline PRO (P) | 12 | 5.8% |
| Serine SER (S) | 16 | 7.73% |
| Arginine ARG (R) | 3 | 1.45% |
| Threonine THR (T) | 18 | 8.7% |
| Tryptophan TRP (W) | 3 | 1.45% |
| Valine VAL (V) | 15 | 7.25% |
| Tyrosine TYR (Y) | 2 | 0.97% |
| Element | Element's Abbreviation | Count |
| Carbon | C | 919 |
| Hydrogen | H | 1483 |
| Nitrogen | N | 245 |
| Oxygen | O | 287 |
| Sulphur | S | 22 |
| Formula | C919H1483N245O287S22 |
| Total Number of Atoms: | 2956 |
| Total number of positively charged residues (ARG + LYS): | 14 |
| 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 20605 Absorption 0.1% (=1 g/l) 0.969, assuming all pairs of CYS residues form cystines Ext. coefficient 19480 Absorption 0.1% (=1 g/l) 0.916, assuming all CYS residues are reduced |
| Aromaticity: | 0.053 Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 42.15 This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [25.60, 29.95, 29.47] 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: | 82.0289 |
| Grand average of hydropathicity (GRAVY): | 0.28 |