Peptide Database

Peptide NameBarley peptide B13

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length16 amino acids

Chemical FormulaC88H124N22O24

DescriptionStandard

        PQPYPQQPQPFPQQPP
    

Molecular Weight1874.06 Da

Isoelectric Point (pI)5.95

Net Charge (pH 7.0)-0.04

Net Charge (pH 7.4) -0.10

Charge Density (pH 7.0) -0.0027

GRAVY Index-2.02

Hydrophobic Moment 0.30

Boman Index-0.17

Instability Index173.57

Aliphatic Index 0.00

Aromaticity 0.1250

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 703.07

LogP -6.58

H-bond Donors 17.0

H-bond Acceptors 24.0

Rotatable Bonds 46.0

Heavy Atoms 134.0

Ring Count 10.0

Amide Bonds 21.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0388224 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: B13

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay