Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3337
Number of amino acids:19
Molecular Weight:2154.28 Da
Theoretical pI:4.21


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)15.26%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)210.53%
Glycine GLY (G)00%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)15.26%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)315.79%
Asparagine ASN (N)631.58%
Glutamine GLN (Q)210.53%
Proline PRO (P)15.26%
Serine SER (S)15.26%
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
CarbonC87
HydrogenH144
NitrogenN30
OxygenO34
SulphurS0

FormulaC87H144N30O34S0
Total Number of Atoms:295


Total number of positively charged residues (ARG + LYS):1
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 : -9.30

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[21.05, 42.11, 21.05]

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:87.3685
Grand average of hydropathicity (GRAVY):-1.31