Peptide Database

Peptide NameBarley peptide B16

Function Ontology

Immunology ▸ Immunomodulation ▸ Celiac-immunogenic

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC109H160N30O32

DescriptionStandard

        QQQPFPQQPIPQQPQPYPQQ
    

Molecular Weight2402.62 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) -0.0120

GRAVY Index-2.01

Hydrophobic Moment 0.33

Boman Index-0.24

Instability Index158.68

Aliphatic Index 19.50

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 1005.82

LogP -10.96

H-bond Donors 25.0

H-bond Acceptors 32.0

Rotatable Bonds 68.0

Heavy Atoms 171.0

Ring Count 9.0

Amide Bonds 29.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0007566 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: B16

Bio-Activity Profile

Function

Celiac-immunogenic

TargetHuman intestinal T cells / HLA-DQ2

MethodIntestinal T-cell assay