Peptide Database

Peptide NameBarley peptide B12

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length16 amino acids

Chemical FormulaC88H125N23O25

DescriptionStandard

        PQQPFPQQPQPYPQQP
    

Molecular Weight1905.07 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-2.14

Hydrophobic Moment 0.32

Boman Index-0.23

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 754.95

LogP -7.82

H-bond Donors 19.0

H-bond Acceptors 25.0

Rotatable Bonds 50.0

Heavy Atoms 136.0

Ring Count 9.0

Amide Bonds 22.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0266600 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: B12

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay