Physicochemical Properties of Peptide
| PPepDB ID: | PPepDB_2797 |
| Number of amino acids: | 18 |
| Molecular Weight: | 1871.22 Da |
| Theoretical pI: | 12.01 |
Amino Acid Composition:
| Amino acid | Amino acid count | Amino acid percentage |
| Alanine ALA (A) | 4 | 22.22% |
| Cysteine CYS (C) | 0 | 0% |
| Glutamic Acid GLU (E) | 0 | 0% |
| Aspartic Acid ASP (D) | 0 | 0% |
| Glycine GLY (G) | 0 | 0% |
| Phynylalanine PHE (F) | 0 | 0% |
| Isoleucine ILE (I) | 1 | 5.56% |
| Histidine HIS (H) | 1 | 5.56% |
| Lysine LYS (K) | 1 | 5.56% |
| Methionine MET (M) | 0 | 0% |
| Leucine LEU (L) | 0 | 0% |
| Asparagine ASN (N) | 0 | 0% |
| Glutamine GLN (Q) | 0 | 0% |
| Proline PRO (P) | 8 | 44.44% |
| Serine SER (S) | 0 | 0% |
| Arginine ARG (R) | 2 | 11.11% |
| Threonine THR (T) | 1 | 5.56% |
| Tryptophan TRP (W) | 0 | 0% |
| Valine VAL (V) | 0 | 0% |
| Tyrosine TYR (Y) | 0 | 0% |
Atomic Composition:
| Element | Element's Abbreviation | Count |
| Carbon | C | 86 |
| Hydrogen | H | 139 |
| Nitrogen | N | 27 |
| Oxygen | O | 20 |
| Sulphur | S | 0 |
| Formula | C86H139N27O20S0 |
| Total Number of Atoms: | 272 |
| Total number of positively charged residues (ARG + LYS): | 3 |
| Total number of negatively charged residues (ASP + GLU): | 0 |
| Extinction Coefficient: | As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry. |
| Aromaticity: | 0.000
Aromaticity is the calculated relative frequency of Phe+Trp+Tyr |
| Instability Index: | The computed Instability Index (II) is : 96.11
This indicates that the protein/peptide is unstable |
| Secondary Structure Fraction [Helix, Turn, Sheet]: | [5.56, 44.44, 22.22]
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: | 43.8889 |
| Grand average of hydropathicity (GRAVY): | -0.99 |