Peptide Database

Peptide NameBarley peptide B14

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC110H157N29O32

DescriptionStandard

        FQQPQQSYPVQPQQPFPQPQ
    

Molecular Weight2397.60 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) -0.0120

GRAVY Index-1.67

Hydrophobic Moment 0.25

Boman Index-0.17

Instability Index172.46

Aliphatic Index 14.50

Aromaticity 0.1500

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 991.75

LogP -10.88

H-bond Donors 26.0

H-bond Acceptors 32.0

Rotatable Bonds 68.0

Heavy Atoms 171.0

Ring Count 9.0

Amide Bonds 28.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0290409 VERIFIED: YES

Provenance & Taxonomy

OrganismHordeum vulgare [Plant]

FamilyHordein

Tax ID4513

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Other ModsReported substitutions/positions: B14

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay