Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2902
Number of amino acids:10
Molecular Weight:1296.36 Da
Theoretical pI:4.14


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)220%
Aspartic Acid ASP (D)110%
Glycine GLY (G)00%
Phynylalanine PHE (F)110%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)110%
Asparagine ASN (N)220%
Glutamine GLN (Q)00%
Proline PRO (P)110%
Serine SER (S)00%
Arginine ARG (R)110%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)110%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC57
HydrogenH81
NitrogenN15
OxygenO20
SulphurS0

FormulaC57H81N15O20S0
Total Number of Atoms:173


Total number of positively charged residues (ARG + LYS):1
Total number of negatively charged residues (ASP + GLU):3
Extinction Coefficient:This protein does not contain any Tryptophan residues. Experience shows that this could result in more than 10% error in the computed extinction coefficient.

Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water.

Ext. coefficient    1490
Absorption 0.1% (=1 g/l)    1.149
Aromaticity:0.200

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 96.50

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[30.00, 30.00, 30.00]

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:39
Grand average of hydropathicity (GRAVY):-1.83