Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3417
Number of amino acids:17
Molecular Weight:1988.06 Da
Theoretical pI:4.21


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)15.88%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)211.76%
Glycine GLY (G)00%
Phynylalanine PHE (F)15.88%
Isoleucine ILE (I)00%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)211.76%
Asparagine ASN (N)635.29%
Glutamine GLN (Q)211.76%
Proline PRO (P)15.88%
Serine SER (S)00%
Arginine ARG (R)15.88%
Threonine THR (T)15.88%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC81
HydrogenH126
NitrogenN28
OxygenO31
SulphurS0

FormulaC81H126N28O31S0
Total Number of Atoms:266


Total number of positively charged residues (ARG + LYS):1
Total number of negatively charged residues (ASP + GLU):2
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.059

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : -20.42

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[17.65, 41.18, 17.65]

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:51.7647
Grand average of hydropathicity (GRAVY):-1.74