Peptide Database

Peptide NameCrotamine 4

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length43 amino acids

Chemical FormulaC225H357N71O54S7

DescriptionStandard

        YKRCHKKGGHCFPKEKICIPPSSDFGKMDCRWRWKCCKKRSGK
    

Molecular Weight5145.14 Da

Isoelectric Point (pI)9.87

Net Charge (pH 7.0)10.87

Net Charge (pH 7.4) 10.46

Charge Density (pH 7.0) 0.2528

GRAVY Index-1.26

Hydrophobic Moment 0.59

Boman Index-0.40

Instability Index92.93

Aliphatic Index 18.14

Aromaticity 0.1163

Extinction Coeff. Reduced 12490.00

Extinction Coeff. Oxidized 12865.00

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

Amino Acid Composition

TPSA 2048.71

LogP -18.82

H-bond Donors 80.0

H-bond Acceptors 74.0

Rotatable Bonds 175.0

Heavy Atoms 357.0

Ring Count 12.0

Amide Bonds 42.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0062222 VERIFIED: NO

Provenance & Taxonomy

OrganismCrotalus durissus terrificus [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide4-36; 11-30; 18-37

Bio-Activity Profile

Function

Toxin