Peptide Database

Peptide NamePotassium channel toxin alpha-KTx 2.19

Function Ontology

Membrane / Ion-channel modulation ▸ Ion channel modulation

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC165H286N48O47S8

DescriptionStandard

        TVIDVKCTSPKQCVPACKAAMGTVRAKCMNGKCKCYI
    

Molecular Weight3950.85 Da

Isoelectric Point (pI)9.27

Net Charge (pH 7.0)5.33

Net Charge (pH 7.4) 5.04

Charge Density (pH 7.0) 0.1441

GRAVY Index0.14

Hydrophobic Moment 0.45

Boman Index-0.01

Instability Index54.40

Aliphatic Index 63.24

Aromaticity 0.0270

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1865.00

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

Amino Acid Composition

TPSA 1535.99

LogP -17.26

H-bond Donors 59.0

H-bond Acceptors 61.0

Rotatable Bonds 132.0

Heavy Atoms 268.0

Ring Count 3.0

Amide Bonds 38.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0051003 VERIFIED: NO

Provenance & Taxonomy

OrganismRhopalurus junceus [Animal]

Structure & Mods

Configdisulfide-stabilized linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide7-28; 13-33; 17-35

Bio-Activity Profile

Function

Toxin Ion channel blocker