Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3674
Number of amino acids:13
Molecular Weight:1557.86 Da
Theoretical pI:5.81


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)17.69%
Glycine GLY (G)00%
Phynylalanine PHE (F)215.38%
Isoleucine ILE (I)215.38%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)215.38%
Asparagine ASN (N)215.38%
Glutamine GLN (Q)00%
Proline PRO (P)215.38%
Serine SER (S)00%
Arginine ARG (R)17.69%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)17.69%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC75
HydrogenH116
NitrogenN18
OxygenO18
SulphurS0

FormulaC75H116N18O18S0
Total Number of Atoms:227


Total number of positively charged residues (ARG + LYS):1
Total number of negatively charged residues (ASP + GLU):1
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.154

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 30.85

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[53.85, 30.77, 15.38]

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:142.308
Grand average of hydropathicity (GRAVY):0.63