Physicochemical Properties of Peptide



PPepDB ID:PPepDB_6061
Number of amino acids:133
Molecular Weight:12597.32 Da
Theoretical pI:8.5


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)2418.05%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)21.5%
Aspartic Acid ASP (D)00%
Glycine GLY (G)86.02%
Phynylalanine PHE (F)32.26%
Isoleucine ILE (I)21.5%
Histidine HIS (H)00%
Lysine LYS (K)10.75%
Methionine MET (M)10.75%
Leucine LEU (L)96.77%
Asparagine ASN (N)32.26%
Glutamine GLN (Q)43.01%
Proline PRO (P)2921.8%
Serine SER (S)2115.79%
Arginine ARG (R)21.5%
Threonine THR (T)118.27%
Tryptophan TRP (W)00%
Valine VAL (V)139.77%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC563
HydrogenH905
NitrogenN147
OxygenO177
SulphurS1

FormulaC563H905N147O177S1
Total Number of Atoms:1793


Total number of positively charged residues (ARG + LYS):3
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:0.023

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 87.17

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[20.30, 45.86, 27.07]

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:78.6466
Grand average of hydropathicity (GRAVY):0.25