Physicochemical Properties of Peptide



PPepDB ID:PPepDB_1449
Number of amino acids:16
Molecular Weight:1890.6 Da
Theoretical pI:11.7


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)16.25%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)16.25%
Aspartic Acid ASP (D)00%
Glycine GLY (G)16.25%
Phynylalanine PHE (F)212.5%
Isoleucine ILE (I)16.25%
Histidine HIS (H)00%
Lysine LYS (K)00%
Methionine MET (M)00%
Leucine LEU (L)00%
Asparagine ASN (N)00%
Glutamine GLN (Q)16.25%
Proline PRO (P)425%
Serine SER (S)00%
Arginine ARG (R)318.75%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


As there is at least one ambiguous position (B, J, X or Z) in the sequence considered, the atomic composition cannot be computed.


Total number of positively charged residues (ARG + LYS):3
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:0.125

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 36.48

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[18.75, 31.25, 12.50]

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:30.625
Grand average of hydropathicity (GRAVY):0.00