Peptide Database

Peptide NameAlpha-amylase/trypsin inhibitor; precursor; barley (Hordeum vulgare)

Function Ontology

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

Sensory / Food function ▸ Taste-active peptide ▸ Sweet peptide

Standard StatusStandard

Sequence Length147 amino acids

Chemical FormulaC682H1134N214O203S12

DescriptionStandard

        MASDHRRFVLSGAVLLSVLAVAAATLESVKDECQLGVDFPHNPLATCHTYVIKRVCGRGPSRPMLVKERCCRELAAVPDHCRCEALRILMDGVRTPEGRVVEGRLGDRRDCPREEQRAFAATLVTAAECNLSSVQAPGVRLVLLADG
    

Molecular Weight15964.39 Da

Isoelectric Point (pI)8.12

Net Charge (pH 7.0)1.79

Net Charge (pH 7.4) 1.22

Charge Density (pH 7.0) 0.0122

GRAVY Index0.02

Hydrophobic Moment 0.79

Boman Index-0.04

Instability Index41.62

Aliphatic Index 95.51

Aromaticity 0.0272

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1990.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 6656.75

LogP -70.84

H-bond Donors 244.0

H-bond Acceptors 221.0

Rotatable Bonds 526.0

Heavy Atoms 1111.0

Ring Count 16.0

Amide Bonds 151.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0081668 VERIFIED: YES

Provenance & Taxonomy

OrganismHordeum vulgare [Plant]

FamilyProtease/Amylase inhibitor

Tax ID4513;0

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Sweet Protein Enzyme Inhibitor