Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3181
Number of amino acids:13
Molecular Weight:1668.02 Da
Theoretical pI:11.17


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)00%
Glycine GLY (G)17.69%
Phynylalanine PHE (F)646.15%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)215.38%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)00%
Proline PRO (P)17.69%
Serine SER (S)00%
Arginine ARG (R)17.69%
Threonine THR (T)17.69%
Tryptophan TRP (W)00%
Valine VAL (V)17.69%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC88
HydrogenH118
NitrogenN18
OxygenO15
SulphurS0

FormulaC88H118N18O15S0
Total Number of Atoms:239


Total number of positively charged residues (ARG + LYS):3
Total number of negatively charged residues (ASP + GLU):0
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.462

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 12.17

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[53.85, 15.38, 0.00]

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:22.3077
Grand average of hydropathicity (GRAVY):0.46