Peptide Database

Peptide NameCasein kappa [018-021]

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length4 amino acids

Chemical FormulaC22H33N5O8

DescriptionStandard

        FSDK
    

Molecular Weight495.53 Da

Isoelectric Point (pI)5.84

Net Charge (pH 7.0)-0.24

Net Charge (pH 7.4) -0.44

Charge Density (pH 7.0) -0.0600

GRAVY Index-1.35

Hydrophobic Moment 0.49

Boman Index-0.35

Instability Index-13.72

Aliphatic Index 0.00

Aromaticity 0.2500

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 234.17

LogP -2.31

H-bond Donors 8.0

H-bond Acceptors 8.0

Rotatable Bonds 16.0

Heavy Atoms 35.0

Ring Count 1.0

Amide Bonds 3.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0347297 VERIFIED: NO

Provenance & Taxonomy

OrganismBos taurus [Animal]

FamilyCasein-derived peptide

Tax ID9913

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin Antimicrobial Antibacterial

TargetEscherichia coli, Staphylococcus aureus