Peptide Database

Peptide NameBarley peptide B15

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC113H160N28O31

DescriptionStandard

        YPQQPQPFPQQPIPQQPQPY
    

Molecular Weight2406.65 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) -0.0121

GRAVY Index-1.80

Hydrophobic Moment 0.30

Boman Index-0.14

Instability Index158.68

Aliphatic Index 19.50

Aromaticity 0.1500

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 2980.00

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

Amino Acid Composition

TPSA 931.08

LogP -8.03

H-bond Donors 23.0

H-bond Acceptors 31.0

Rotatable Bonds 63.0

Heavy Atoms 172.0

Ring Count 11.0

Amide Bonds 27.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0367206 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: B15

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay