Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3568
Number of amino acids:14
Molecular Weight:1853.13 Da
Theoretical pI:9.45


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)17.14%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)214.29%
Aspartic Acid ASP (D)17.14%
Glycine GLY (G)00%
Phynylalanine PHE (F)214.29%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)17.14%
Leucine LEU (L)214.29%
Asparagine ASN (N)17.14%
Glutamine GLN (Q)00%
Proline PRO (P)00%
Serine SER (S)00%
Arginine ARG (R)428.57%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC80
HydrogenH129
NitrogenN27
OxygenO22
SulphurS1

FormulaC80H129N27O22S1
Total Number of Atoms:259


Total number of positively charged residues (ARG + LYS):4
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:0.143

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 73.49

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[28.57, 7.14, 42.86]

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:62.8571
Grand average of hydropathicity (GRAVY):-1.08