Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2453
Number of amino acids:27
Molecular Weight:2840.32 Da
Theoretical pI:10.75


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)13.7%
Aspartic Acid ASP (D)00%
Glycine GLY (G)518.52%
Phynylalanine PHE (F)13.7%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)725.93%
Methionine MET (M)00%
Leucine LEU (L)27.41%
Asparagine ASN (N)27.41%
Glutamine GLN (Q)00%
Proline PRO (P)311.11%
Serine SER (S)311.11%
Arginine ARG (R)13.7%
Threonine THR (T)13.7%
Tryptophan TRP (W)00%
Valine VAL (V)13.7%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC125
HydrogenH215
NitrogenN39
OxygenO36
SulphurS0

FormulaC125H215N39O36S0
Total Number of Atoms:415


Total number of positively charged residues (ARG + LYS):8
Total number of negatively charged residues (ASP + GLU):1
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.037

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 34.91

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[14.81, 48.15, 11.11]

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:39.6296
Grand average of hydropathicity (GRAVY):-1.39