Peptide Database

Peptide NamePotassium channel toxin 3

Function Ontology

Membrane / Ion-channel modulation ▸ Ion channel modulation

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length38 amino acids

Chemical FormulaC191H294N58O53S7

DescriptionStandard

        QIHTKIPCRYSNQCHDPCRKITGFFSSKCMNGFCTCYR
    

Molecular Weight4475.19 Da

Isoelectric Point (pI)9.13

Net Charge (pH 7.0)4.87

Net Charge (pH 7.4) 4.47

Charge Density (pH 7.0) 0.1282

GRAVY Index-0.56

Hydrophobic Moment 0.58

Boman Index-0.16

Instability Index16.02

Aliphatic Index 30.79

Aromaticity 0.1316

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3355.00

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

Amino Acid Composition

TPSA 1815.06

LogP -21.31

H-bond Donors 70.0

H-bond Acceptors 67.0

Rotatable Bonds 144.0

Heavy Atoms 309.0

Ring Count 9.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0045489 VERIFIED: NO

Provenance & Taxonomy

OrganismHemiscorpius lepturus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin Ion channel blocker