Peptide Database

Peptide NameCrotamine Isoform

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length43 amino acids

Chemical FormulaC213H352N68O54S7

DescriptionStandard

        YKRCHKKGGHCFPKEKICLPPSSDLGKMDCRWKRKCCKKGSGK
    

Molecular Weight4953.95 Da

Isoelectric Point (pI)9.82

Net Charge (pH 7.0)10.87

Net Charge (pH 7.4) 10.46

Charge Density (pH 7.0) 0.2527

GRAVY Index-1.23

Hydrophobic Moment 0.59

Boman Index-0.40

Instability Index78.79

Aliphatic Index 27.21

Aromaticity 0.0698

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 1997.04

LogP -20.25

H-bond Donors 77.0

H-bond Acceptors 74.0

Rotatable Bonds 173.0

Heavy Atoms 342.0

Ring Count 9.0

Amide Bonds 42.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0236732 VERIFIED: NO

Provenance & Taxonomy

OrganismCrotalus durissus cascavella [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin