Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3185
Number of amino acids:12
Molecular Weight:1533.75 Da
Theoretical pI:6


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)18.33%
Aspartic Acid ASP (D)00%
Glycine GLY (G)18.33%
Phynylalanine PHE (F)18.33%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)18.33%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)00%
Proline PRO (P)216.67%
Serine SER (S)00%
Arginine ARG (R)00%
Threonine THR (T)216.67%
Tryptophan TRP (W)325%
Valine VAL (V)18.33%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC78
HydrogenH100
NitrogenN16
OxygenO17
SulphurS0

FormulaC78H100N16O17S0
Total Number of Atoms:211


Total number of positively charged residues (ARG + LYS):1
Total number of negatively charged residues (ASP + GLU):1
Extinction Coefficient:Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water.

Ext. coefficient    16500
Absorption 0.1% (=1 g/l)    10.758
Aromaticity:0.333

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 21.67

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[41.67, 25.00, 8.33]

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:24.1667
Grand average of hydropathicity (GRAVY):-0.68