Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3378
Number of amino acids:28
Molecular Weight:2815.13 Da
Theoretical pI:9.7


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)310.71%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)27.14%
Glycine GLY (G)27.14%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)13.57%
Histidine HIS (H)00%
Lysine LYS (K)310.71%
Methionine MET (M)00%
Leucine LEU (L)13.57%
Asparagine ASN (N)13.57%
Glutamine GLN (Q)13.57%
Proline PRO (P)27.14%
Serine SER (S)517.86%
Arginine ARG (R)13.57%
Threonine THR (T)310.71%
Tryptophan TRP (W)00%
Valine VAL (V)310.71%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC118
HydrogenH204
NitrogenN36
OxygenO43
SulphurS0

FormulaC118H204N36O43S0
Total Number of Atoms:401


Total number of positively charged residues (ARG + LYS):4
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 : 35.69

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[17.86, 35.71, 14.29]

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:69.6429
Grand average of hydropathicity (GRAVY):-0.50