Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3191
Number of amino acids:7
Molecular Weight:903.99 Da
Theoretical pI:4.37


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)114.29%
Aspartic Acid ASP (D)114.29%
Glycine GLY (G)00%
Phynylalanine PHE (F)114.29%
Isoleucine ILE (I)114.29%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)114.29%
Proline PRO (P)114.29%
Serine SER (S)00%
Arginine ARG (R)114.29%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC40
HydrogenH61
NitrogenN11
OxygenO13
SulphurS0

FormulaC40H61N11O13S0
Total Number of Atoms:125


Total number of positively charged residues (ARG + LYS):1
Total number of negatively charged residues (ASP + GLU):2
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.143

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 21.20

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[28.57, 14.29, 14.29]

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:55.7142
Grand average of hydropathicity (GRAVY):-1.33