Peptide Database

Peptide NameBarley peptide B04, B17

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC108H157N29O31

DescriptionStandard

        QPQQPQPFPQQPVPQQPQPY
    

Molecular Weight2357.58 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-1.93

Hydrophobic Moment 0.29

Boman Index-0.21

Instability Index182.84

Aliphatic Index 14.50

Aromaticity 0.1000

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 953.94

LogP -10.10

H-bond Donors 23.0

H-bond Acceptors 31.0

Rotatable Bonds 63.0

Heavy Atoms 168.0

Ring Count 10.0

Amide Bonds 28.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0403739 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: B04,B17

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay