Peptide Database

Peptide NameGliadin (p198-p222)

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length25 amino acids

Chemical FormulaC115H171N37O42

DescriptionStandard

        QQPQQQYPSGQGSFQPSQQNPQAQG
    

Molecular Weight2743.81 Da

Isoelectric Point (pI)5.52

Net Charge (pH 7.0)-0.24

Net Charge (pH 7.4) -0.45

Charge Density (pH 7.0) -0.0096

GRAVY Index-1.95

Hydrophobic Moment 0.23

Boman Index-0.27

Instability Index95.11

Aliphatic Index 4.00

Aromaticity 0.0800

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 1324.56

LogP -22.06

H-bond Donors 38.0

H-bond Acceptors 42.0

Rotatable Bonds 87.0

Heavy Atoms 194.0

Ring Count 6.0

Amide Bonds 36.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0227201 VERIFIED: YES

Provenance & Taxonomy

OrganismTriticum aestivum [Plant]

FamilyGliadin

Tax ID4565

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman HLA-DQ8-positive coeliac mucosa

MethodOrgan culture