Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3615
Number of amino acids:21
Molecular Weight:2420.71 Da
Theoretical pI:12.01


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)14.76%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)14.76%
Aspartic Acid ASP (D)00%
Glycine GLY (G)00%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)14.76%
Histidine HIS (H)00%
Lysine LYS (K)314.29%
Methionine MET (M)00%
Leucine LEU (L)14.76%
Asparagine ASN (N)00%
Glutamine GLN (Q)29.52%
Proline PRO (P)00%
Serine SER (S)733.33%
Arginine ARG (R)419.05%
Threonine THR (T)14.76%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC97
HydrogenH178
NitrogenN38
OxygenO34
SulphurS0

FormulaC97H178N38O34S0
Total Number of Atoms:347


Total number of positively charged residues (ARG + LYS):7
Total number of negatively charged residues (ASP + GLU):1
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.000

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 101.00

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[9.52, 33.33, 14.29]

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:41.9047
Grand average of hydropathicity (GRAVY):-1.73