Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2583
Number of amino acids:36
Molecular Weight:4945.35 Da
Theoretical pI:11.75


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)513.89%
Aspartic Acid ASP (D)38.33%
Glycine GLY (G)12.78%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)12.78%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)1027.78%
Proline PRO (P)12.78%
Serine SER (S)00%
Arginine ARG (R)1438.89%
Threonine THR (T)00%
Tryptophan TRP (W)12.78%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC195
HydrogenH332
NitrogenN90
OxygenO63
SulphurS0

FormulaC195H332N90O63S0
Total Number of Atoms:680


Total number of positively charged residues (ARG + LYS):15
Total number of negatively charged residues (ASP + GLU):8
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)    1.112
Aromaticity:0.028

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 161.20

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[2.78, 5.56, 13.89]

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:0
Grand average of hydropathicity (GRAVY):-3.69