Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2512
Number of amino acids:11
Molecular Weight:1359.5 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)19.09%
Aspartic Acid ASP (D)00%
Glycine GLY (G)00%
Phynylalanine PHE (F)19.09%
Isoleucine ILE (I)19.09%
Histidine HIS (H)00%
Lysine LYS (K)19.09%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)327.27%
Glutamine GLN (Q)00%
Proline PRO (P)218.18%
Serine SER (S)00%
Arginine ARG (R)00%
Threonine THR (T)19.09%
Tryptophan TRP (W)19.09%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC63
HydrogenH90
NitrogenN16
OxygenO18
SulphurS0

FormulaC63H90N16O18S0
Total Number of Atoms:187


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    5500
Absorption 0.1% (=1 g/l)    4.046
Aromaticity:0.182

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 76.16

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[27.27, 45.45, 9.09]

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:35.4545
Grand average of hydropathicity (GRAVY):-1.40