Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3496
Number of amino acids:50
Molecular Weight:5587.47 Da
Theoretical pI:6.08


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)24%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)36%
Aspartic Acid ASP (D)48%
Glycine GLY (G)36%
Phynylalanine PHE (F)24%
Isoleucine ILE (I)612%
Histidine HIS (H)00%
Lysine LYS (K)612%
Methionine MET (M)12%
Leucine LEU (L)48%
Asparagine ASN (N)12%
Glutamine GLN (Q)510%
Proline PRO (P)24%
Serine SER (S)24%
Arginine ARG (R)12%
Threonine THR (T)510%
Tryptophan TRP (W)00%
Valine VAL (V)36%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC248
HydrogenH415
NitrogenN65
OxygenO78
SulphurS1

FormulaC248H415N65O78S1
Total Number of Atoms:807


Total number of positively charged residues (ARG + LYS):7
Total number of negatively charged residues (ASP + GLU):7
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.040

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 15.85

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[30.00, 16.00, 20.00]

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:99.4
Grand average of hydropathicity (GRAVY):-0.34