Peptide Database

Peptide NameCalcium-channel toxin

Function Ontology

Membrane / Ion-channel modulation ▸ Ion channel modulation

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length47 amino acids

Chemical FormulaC227H393N87O69S6

DescriptionStandard

        REIEFNAGRVVRSEKDCIKHLQRCRENKQCCSKKCSRRGTNPEKRCR
    

Molecular Weight5637.48 Da

Isoelectric Point (pI)9.89

Net Charge (pH 7.0)8.80

Net Charge (pH 7.4) 8.44

Charge Density (pH 7.0) 0.1872

GRAVY Index-1.50

Hydrophobic Moment 0.77

Boman Index-0.66

Instability Index69.77

Aliphatic Index 39.36

Aromaticity 0.0213

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 375.00

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

Amino Acid Composition

TPSA 2655.20

LogP -34.82

H-bond Donors 102.0

H-bond Acceptors 85.0

Rotatable Bonds 203.0

Heavy Atoms 389.0

Ring Count 3.0

Amide Bonds 51.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0400035 VERIFIED: NO

Provenance & Taxonomy

OrganismHadrurus spadix [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin Ion channel blocker