Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3514
Number of amino acids:16
Molecular Weight:1881.25 Da
Theoretical pI:8.75


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)16.25%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)16.25%
Aspartic Acid ASP (D)00%
Glycine GLY (G)16.25%
Phynylalanine PHE (F)425%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)16.25%
Methionine MET (M)00%
Leucine LEU (L)212.5%
Asparagine ASN (N)16.25%
Glutamine GLN (Q)00%
Proline PRO (P)212.5%
Serine SER (S)00%
Arginine ARG (R)16.25%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)212.5%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC94
HydrogenH137
NitrogenN21
OxygenO20
SulphurS0

FormulaC94H137N21O20S0
Total Number of Atoms:272


Total number of positively charged residues (ARG + LYS):2
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:0.250

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 63.08

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[50.00, 25.00, 25.00]

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:91.25
Grand average of hydropathicity (GRAVY):0.62