Peptide Database

Peptide NameBarley peptide B11

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC112H157N29O32

DescriptionStandard

        QPQPYPQQPQPYPQQPFQPQ
    

Molecular Weight2421.62 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-2.21

Hydrophobic Moment 0.27

Boman Index-0.25

Instability Index156.66

Aliphatic Index 0.00

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 974.17

LogP -9.81

H-bond Donors 24.0

H-bond Acceptors 32.0

Rotatable Bonds 64.0

Heavy Atoms 173.0

Ring Count 11.0

Amide Bonds 28.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0239410 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: B11

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay