Physicochemical Properties of Peptide



PPepDB ID:PPepDB_1536
Number of amino acids:40
Molecular Weight:4213.75 Da
Theoretical pI:11.71


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)1025%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)12.5%
Glycine GLY (G)25%
Phynylalanine PHE (F)37.5%
Isoleucine ILE (I)12.5%
Histidine HIS (H)12.5%
Lysine LYS (K)12.5%
Methionine MET (M)12.5%
Leucine LEU (L)37.5%
Asparagine ASN (N)512.5%
Glutamine GLN (Q)25%
Proline PRO (P)25%
Serine SER (S)25%
Arginine ARG (R)37.5%
Threonine THR (T)25%
Tryptophan TRP (W)00%
Valine VAL (V)12.5%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC183
HydrogenH291
NitrogenN59
OxygenO54
SulphurS1

FormulaC183H291N59O54S1
Total Number of Atoms:588


Total number of positively charged residues (ARG + LYS):4
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:0.075

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 37.12

This indicates that the protein/peptide is stable
Secondary Structure Fraction [Helix, Turn, Sheet]:[20.00, 27.50, 35.00]

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:71.25
Grand average of hydropathicity (GRAVY):-0.18