Peptide Database

Peptide Namealpha-9 gliadin epitope homolog (p57-p68; E63 and E65 (tTG-treated form))

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length12 amino acids

Chemical FormulaC70H100N14O20

DescriptionStandard

        QLQPFPEPELPY
    

Molecular Weight1457.62 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-2.24

Net Charge (pH 7.4) -2.44

Charge Density (pH 7.0) -0.1863

GRAVY Index-0.94

Hydrophobic Moment 0.20

Boman Index0.07

Instability Index145.55

Aliphatic Index 65.00

Aromaticity 0.1667

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1490.00

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

Amino Acid Composition

TPSA 529.27

LogP -1.70

H-bond Donors 14.0

H-bond Acceptors 18.0

Rotatable Bonds 39.0

Heavy Atoms 104.0

Ring Count 6.0

Amide Bonds 13.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0122994 VERIFIED: YES

Provenance & Taxonomy

OrganismTriticum aestivum [Plant]

FamilyGliadin

Tax ID4565

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Other ModsDeamidation; Reported substitutions/positions: E63; Reported substitutions/positions: E65

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay