Peptide Database

Peptide Namesynthetic peptide from alpha-gliadin

Function Ontology

Venom / Toxin ▸ General toxin ▸ Celiac toxic

Standard StatusStandard

Sequence Length12 amino acids

Chemical FormulaC62H95N17O20S

DescriptionStandard

        WQIPEQSQCQAI
    

Molecular Weight1430.58 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-1.25

Net Charge (pH 7.4) -1.47

Charge Density (pH 7.0) -0.1039

GRAVY Index-0.62

Hydrophobic Moment 0.21

Boman Index0.02

Instability Index77.40

Aliphatic Index 73.33

Aromaticity 0.0833

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5500.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 620.31

LogP -6.08

H-bond Donors 20.0

H-bond Acceptors 20.0

Rotatable Bonds 45.0

Heavy Atoms 100.0

Ring Count 3.0

Amide Bonds 15.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0164258 VERIFIED: YES

Provenance & Taxonomy

OrganismTriticum aestivum [Plant]

FamilyGliadin-derived

Tax ID4565;0

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Celiac toxic

Targetgliadin-reactive enterocyte / calreticulin cross-reactivity assays

PaperKrupickova S., Tuckova L., Flegelove Z., Michalak M., Walters J. R. F., Whelan A., Harries J., Vencovsky J., Tlaskalova-Hogenova H.. Identification of common epitopes on gliadin, enterocytes, and calreticulin recognised antigliadin antibodies of patients with coeliac disease. Gut, 1999, 44, 168-173. PMID9895374 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/9895374/

RECORD: Rec_0227853 VERIFIED: YES