Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3508
Number of amino acids:15
Molecular Weight:1696.79 Da
Theoretical pI:4.63


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)16.67%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)213.33%
Aspartic Acid ASP (D)16.67%
Glycine GLY (G)16.67%
Phynylalanine PHE (F)16.67%
Isoleucine ILE (I)16.67%
Histidine HIS (H)213.33%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)16.67%
Asparagine ASN (N)213.33%
Glutamine GLN (Q)00%
Proline PRO (P)00%
Serine SER (S)00%
Arginine ARG (R)00%
Threonine THR (T)213.33%
Tryptophan TRP (W)00%
Valine VAL (V)16.67%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC73
HydrogenH109
NitrogenN21
OxygenO26
SulphurS0

FormulaC73H109N21O26S0
Total Number of Atoms:229


Total number of positively charged residues (ARG + LYS):0
Total number of negatively charged residues (ASP + GLU):3
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.067

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 26.78

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[26.67, 20.00, 26.67]

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:78
Grand average of hydropathicity (GRAVY):-0.57