Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3206
Number of amino acids:20
Molecular Weight:2022.48 Da
Theoretical pI:12.02


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)315%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)00%
Glycine GLY (G)315%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)15%
Histidine HIS (H)00%
Lysine LYS (K)210%
Methionine MET (M)15%
Leucine LEU (L)15%
Asparagine ASN (N)00%
Glutamine GLN (Q)00%
Proline PRO (P)210%
Serine SER (S)00%
Arginine ARG (R)210%
Threonine THR (T)210%
Tryptophan TRP (W)00%
Valine VAL (V)315%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC89
HydrogenH160
NitrogenN28
OxygenO23
SulphurS1

FormulaC89H160N28O23S1
Total Number of Atoms:301


Total number of positively charged residues (ARG + LYS):4
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 : 14.36

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[25.00, 25.00, 25.00]

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:97.5
Grand average of hydropathicity (GRAVY):0.28