Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2796
Number of amino acids:19
Molecular Weight:2086.29 Da
Theoretical pI:8.6


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)15.26%
Aspartic Acid ASP (D)15.26%
Glycine GLY (G)15.26%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)00%
Histidine HIS (H)15.26%
Lysine LYS (K)210.53%
Methionine MET (M)00%
Leucine LEU (L)15.26%
Asparagine ASN (N)00%
Glutamine GLN (Q)210.53%
Proline PRO (P)526.32%
Serine SER (S)315.79%
Arginine ARG (R)15.26%
Threonine THR (T)15.26%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC89
HydrogenH144
NitrogenN28
OxygenO30
SulphurS0

FormulaC89H144N28O30S0
Total Number of Atoms:291


Total number of positively charged residues (ARG + LYS):3
Total number of negatively charged residues (ASP + GLU):2
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 : 104.77

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[5.26, 47.37, 10.53]

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:20.5263
Grand average of hydropathicity (GRAVY):-1.96