Peptide Database

Peptide NamePotassium channel toxin kappa-KTx 2.8

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length24 amino acids

Chemical FormulaC102H165N31O37S4

DescriptionStandard

        GNACIEVCLQHTGNPAECDKPCDK
    

Molecular Weight2545.85 Da

Isoelectric Point (pI)4.75

Net Charge (pH 7.0)-2.19

Net Charge (pH 7.4) -2.51

Charge Density (pH 7.0) -0.0911

GRAVY Index-0.59

Hydrophobic Moment 0.31

Boman Index-0.08

Instability Index81.88

Aliphatic Index 52.92

Aromaticity 0.0000

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 250.00

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

Amino Acid Composition

TPSA 1094.46

LogP -14.37

H-bond Donors 38.0

H-bond Acceptors 40.0

Rotatable Bonds 82.0

Heavy Atoms 174.0

Ring Count 3.0

Amide Bonds 26.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0342129 VERIFIED: NO

Provenance & Taxonomy

OrganismHeterometrus petersii [Animal]

Structure & Mods

Configlinear disulfide-stabilized peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide4-22, 8-18

Bio-Activity Profile

Function

Toxin

TargetKv1.3/KCNA3