Physicochemical Properties of Peptide



PPepDB ID:PPepDB_607
Number of amino acids:15
Molecular Weight:1796.06 Da
Theoretical pI:11


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)16.67%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)00%
Glycine GLY (G)00%
Phynylalanine PHE (F)16.67%
Isoleucine ILE (I)213.33%
Histidine HIS (H)16.67%
Lysine LYS (K)16.67%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)213.33%
Glutamine GLN (Q)00%
Proline PRO (P)213.33%
Serine SER (S)00%
Arginine ARG (R)16.67%
Threonine THR (T)320%
Tryptophan TRP (W)16.67%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC83
HydrogenH126
NitrogenN24
OxygenO21
SulphurS0

FormulaC83H126N24O21S0
Total Number of Atoms:254


Total number of positively charged residues (ARG + LYS):2
Total number of negatively charged residues (ASP + GLU):0
Extinction Coefficient:Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water.

Ext. coefficient    5500
Absorption 0.1% (=1 g/l)    3.062
Aromaticity:0.133

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : -5.07

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[26.67, 26.67, 6.67]

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:58.6665
Grand average of hydropathicity (GRAVY):-0.75