Peptide properties

1Top 2Function-activity relationship 3Calculated physicochemical properties 4Peptide source & Food-borne protein(s) search 5Biological/Functional activity & target protein 6Taste properties & Structure 7Preparation method 8Stability & Cytotoxicity 9Additional information 10Database cross-references 11Reference(s)

List of peptide properties

DFBP ID - DFBPAGPE0009(Alpha-gliadin peptide)

DFBP ID	DFBPAGPE0009
Peptide sequence	LGQQQPFPPQQPY
Type	Native peptide
Peptide/Function name	α-Gliadin peptide, Coeliac toxic peptide

Function-activity relationship

Main bioactivity	Alpha-gliadin peptide activity
Otheir bioactivity	N.D

Calculated physicochemical properties

Three-letter amino acid

Leu-Gly-Gln-Gln-Gln-Pro-Phe-Pro-Pro-Gln-Gln-Pro-Tyr

Single-letter amino acid

LGQQQPFPPQQPY

Peptide length

Peptide mass

Experimental mass	Theoretical mass
1527.6820 Da	1527.71 Da ^c

Net charge

0.00 ^c

Isoelectric point (pI)

5.92 ^c

IC₅₀

N.D

pIC₅₀

N.D

GRAVY

-1.4615^c

Hydrophilic residue ratio

53.85%^c

Peptide calculator

Peptide source & Food-borne protein(s) search

Classification	Plant
Organism/Source	Wheat
Precursor protein	α-Gliadin
Residue position	f(56-68)
Precursor protein(s) search	Source.1: DFBPPR0379 ---- Plant protein ---- Alpha-gliadin Source.2: DFBPPR0380 ---- Plant protein ---- Alpha-gliadin Source.3: DFBPPR0381 ---- Plant protein ---- Alpha-gliadin Source.4: DFBPPR0384 ---- Plant protein ---- Alpha-gliadin Source.5: DFBPPR0389 ---- Plant protein ---- Alpha-gliadin Source.6: DFBPPR6930 ---- Plant proteins ---- Alpha/beta-gliadin Source.7: DFBPPR6941 ---- Plant proteins ---- Alpha/beta-gliadin A-I
Link-research Inductive analysis	There are no literature reports on the discovery of this sequence in other food-source proteins.

Biological/Functional activity & target protein

Coeliac toxic activity	Celiac toxic
Specific target protein(s)	N.D

Taste properties & Structure

Bitterness

Literature report	N.D
Bitter prediction tools	No prediction can be made about the peptide bitterness. ^prediction

SMILES

N[C@@]([H])(CC(C)C)C(=O)NCC(=O)N[C@@]([H])(CCC(=O)N)C(=O)N[C@@]([H])(CCC(=O)N)C(=O)N[C@@]([H])(CCC(=O)N)C(=O)N1[C@@]([H])(CCC1)C(=O)N[C@@]([H])(Cc1ccccc1)C(=O)N1[C@@]([H])(CCC1)C(=O)N1[C@@]([H])(CCC1)C(=O)N[C@@]([H])(CCC(=O)N)C(=O)N[C@@]([H])(CCC(=O)N)C(=O)N1[C@@]([H])(CCC1)C(=O)N[C@@]([H])(Cc1ccc(O)cc1)C(=O)O

Preparation method

Mode of preparation	null
Enzyme(s)/starter culture	null

Stability & Cytotoxicity

Peptide stability

Literature report:	N.D
EHP-Tool:	Enzymatic Hydrolysis Prediction Tool (EHP-Tool)

Peptide cytotoxicity

Literature report:	N.D
Prediction:	ToxinPred

Additional information

N.D

Database cross-references

[D1]

[D2]

[D3]

[D4]

Reference(s)

Primary literature	Marsh, M.N., Morgan, S., Ensari, A., Wardle, T., Lobley, R., Mills, C., et al. In vivo activity of peptides 31-43, 44-55, 56-68 of α-gliadin in gluten sensitive enteropathy (GSE). Gastroenterology. 1995, 108, A871.
Other literature(s)	N.D
PubDate	1995