Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2868
Number of amino acids:23
Molecular Weight:2452.64 Da
Theoretical pI:12.18


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)14.35%
Aspartic Acid ASP (D)00%
Glycine GLY (G)626.09%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)00%
Histidine HIS (H)28.7%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)28.7%
Glutamine GLN (Q)00%
Proline PRO (P)313.04%
Serine SER (S)14.35%
Arginine ARG (R)521.74%
Threonine THR (T)28.7%
Tryptophan TRP (W)00%
Valine VAL (V)14.35%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC98
HydrogenH162
NitrogenN44
OxygenO31
SulphurS0

FormulaC98H162N44O31S0
Total Number of Atoms:335


Total number of positively charged residues (ARG + LYS):5
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:0.000

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 69.66

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[4.35, 52.17, 4.35]

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:12.6087
Grand average of hydropathicity (GRAVY):-1.94