Physicochemical Properties of Peptide



PPepDB ID:PPepDB_2278
Number of amino acids:12
Molecular Weight:1255.48 Da
Theoretical pI:10


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)18.33%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)00%
Glycine GLY (G)18.33%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)18.33%
Histidine HIS (H)00%
Lysine LYS (K)216.67%
Methionine MET (M)00%
Leucine LEU (L)18.33%
Asparagine ASN (N)18.33%
Glutamine GLN (Q)18.33%
Proline PRO (P)18.33%
Serine SER (S)18.33%
Arginine ARG (R)00%
Threonine THR (T)18.33%
Tryptophan TRP (W)00%
Valine VAL (V)18.33%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC55
HydrogenH98
NitrogenN16
OxygenO17
SulphurS0

FormulaC55H98N16O17S0
Total Number of Atoms:186


Total number of positively charged residues (ARG + LYS):2
Total number of negatively charged residues (ASP + GLU):0
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 : 54.28

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[25.00, 33.33, 16.67]

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:97.5
Grand average of hydropathicity (GRAVY):-0.33