Peptide Database

Peptide NamePotassium channel toxin alpha-KTx 1.18

Function Ontology

Membrane / Ion-channel modulation ▸ Ion channel modulation

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC172H288N48O49S7

DescriptionStandard

        IVIDVPCTVSKECWSACKKAVGTDRGKCMGKKCKCYP
    

Molecular Weight4036.87 Da

Isoelectric Point (pI)9.06

Net Charge (pH 7.0)4.70

Net Charge (pH 7.4) 4.39

Charge Density (pH 7.0) 0.1270

GRAVY Index-0.15

Hydrophobic Moment 0.49

Boman Index-0.07

Instability Index48.20

Aliphatic Index 57.84

Aromaticity 0.0541

Extinction Coeff. Reduced 6990.00

Extinction Coeff. Oxidized 7365.00

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

Amino Acid Composition

TPSA 1566.22

LogP -15.76

H-bond Donors 61.0

H-bond Acceptors 61.0

Rotatable Bonds 135.0

Heavy Atoms 276.0

Ring Count 5.0

Amide Bonds 36.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0139909 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