Physicochemical Properties of Peptide



PPepDB ID:PPepDB_1617
Number of amino acids:36
Molecular Weight:2949.12 Da
Theoretical pI:10.58


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)00%
Glycine GLY (G)2775%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)411.11%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)00%
Proline PRO (P)00%
Serine SER (S)00%
Arginine ARG (R)12.78%
Threonine THR (T)00%
Tryptophan TRP (W)38.33%
Valine VAL (V)00%
Tyrosine TYR (Y)12.78%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC126
HydrogenH182
NitrogenN46
OxygenO38
SulphurS0

FormulaC126H182N46O38S0
Total Number of Atoms:392


Total number of positively charged residues (ARG + LYS):5
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    17990
Absorption 0.1% (=1 g/l)    6.100
Aromaticity:0.111

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 89.80

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[11.11, 75.00, 0.00]

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):-0.97