Physicochemical Properties of Peptide



PPepDB ID:PPepDB_5362
Number of amino acids:386
Molecular Weight:42486.27 Da
Theoretical pI:4.94


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)4010.36%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)246.22%
Aspartic Acid ASP (D)215.44%
Glycine GLY (G)215.44%
Phynylalanine PHE (F)184.66%
Isoleucine ILE (I)205.18%
Histidine HIS (H)41.04%
Lysine LYS (K)235.96%
Methionine MET (M)133.37%
Leucine LEU (L)4010.36%
Asparagine ASN (N)205.18%
Glutamine GLN (Q)133.37%
Proline PRO (P)164.15%
Serine SER (S)287.25%
Arginine ARG (R)102.59%
Threonine THR (T)369.33%
Tryptophan TRP (W)20.52%
Valine VAL (V)205.18%
Tyrosine TYR (Y)174.4%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC1903
HydrogenH2982
NitrogenN482
OxygenO591
SulphurS13

FormulaC1903H2982N482O591S13
Total Number of Atoms:5971


Total number of positively charged residues (ARG + LYS):33
Total number of negatively charged residues (ASP + GLU):45
Extinction Coefficient:Extinction coefficients are in units of M-1 cm-1, at 280 nm measured in water.

Ext. coefficient    36330
Absorption 0.1% (=1 g/l)    0.855
Aromaticity:0.096

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 35.27

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[30.31, 22.02, 30.31]

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:86.0104
Grand average of hydropathicity (GRAVY):-0.14