Peptide Database

Peptide NamePotassium channel toxin kappa-KTx 2.7

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length23 amino acids

Chemical FormulaC94H151N29O36S4

DescriptionStandard

        GNACIEVCLQHTGNPAECDKACD
    

Molecular Weight2391.64 Da

Isoelectric Point (pI)4.49

Net Charge (pH 7.0)-3.18

Net Charge (pH 7.4) -3.50

Charge Density (pH 7.0) -0.1384

GRAVY Index-0.30

Hydrophobic Moment 0.31

Boman Index-0.00

Instability Index114.36

Aliphatic Index 59.57

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 1048.13

LogP -14.47

H-bond Donors 37.0

H-bond Acceptors 38.0

Rotatable Bonds 77.0

Heavy Atoms 163.0

Ring Count 2.0

Amide Bonds 25.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0314508 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

TargetKv7, KCNQ1