Physicochemical Properties of Peptide



PPepDB ID:PPepDB_577
Number of amino acids:8
Molecular Weight:959.97 Da
Theoretical pI:5.97


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)112.5%
Glycine GLY (G)00%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)00%
Histidine HIS (H)225%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)225%
Glutamine GLN (Q)112.5%
Proline PRO (P)112.5%
Serine SER (S)00%
Arginine ARG (R)00%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)112.5%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC39
HydrogenH57
NitrogenN15
OxygenO14
SulphurS0

FormulaC39H57N15O14S0
Total Number of Atoms:125


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:0.000

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 5.15

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[12.50, 37.50, 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:36.25
Grand average of hydropathicity (GRAVY):-2.23