Physicochemical Properties of Peptide



PPepDB ID:PPepDB_295
Number of amino acids:8
Molecular Weight:1011.26 Da
Theoretical pI:4


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)112.5%
Aspartic Acid ASP (D)00%
Glycine GLY (G)00%
Phynylalanine PHE (F)225%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)225%
Leucine LEU (L)112.5%
Asparagine ASN (N)00%
Glutamine GLN (Q)00%
Proline PRO (P)225%
Serine SER (S)00%
Arginine ARG (R)00%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC49
HydrogenH70
NitrogenN8
OxygenO11
SulphurS2

FormulaC49H70N8O11S2
Total Number of Atoms:140


Total number of positively charged residues (ARG + LYS):0
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 : 108.22

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[37.50, 25.00, 50.00]

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:48.75
Grand average of hydropathicity (GRAVY):0.81