Peptide Database

Peptide NameUnnamed

Function Ontology

Cardiovascular ▸ Blood pressure regulation ▸ Antihypertensive

Enzyme modulation ▸ Enzyme inhibition ▸ ACE inhibition ▸ ACE inhibitory

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

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

Standard StatusStandard

Sequence Length3 amino acids

Chemical FormulaC17H33N5O4

DescriptionStandard

KPK

Molecular Weight371.48 Da

Isoelectric Point (pI)10.00

Net Charge (pH 7.0)1.76

Net Charge (pH 7.4) 1.55

Charge Density (pH 7.0) 0.5860

GRAVY Index-3.13

Hydrophobic Moment 0.21

Boman Index-0.96

Instability Index-18.47

Aliphatic Index 0.00

Aromaticity 0.0000

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

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

Amino Acid Composition

TPSA 164.77

LogP -0.87

H-bond Donors 5.0

H-bond Acceptors 6.0

Rotatable Bonds 12.0

Heavy Atoms 26.0

Ring Count 1.0

Amide Bonds 2.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0405387 VERIFIED: YES

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

FamilyAngiotensin

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Enzyme inhibitory ACE inhibitory

TargetAngiotensin-converting enzyme

Activity430 μM

MethodIC50

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