Peptide Database

Peptide NameCrotamine

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length41 amino acids

Chemical FormulaC211H327N63O55S7

DescriptionStandard

        YKQCHKKGGHCFDKEKICLPPSSDFGKMDCRWRWKCCKKGS
    

Molecular Weight4850.70 Da

Isoelectric Point (pI)9.36

Net Charge (pH 7.0)6.87

Net Charge (pH 7.4) 6.46

Charge Density (pH 7.0) 0.1676

GRAVY Index-1.16

Hydrophobic Moment 0.50

Boman Index-0.32

Instability Index80.62

Aliphatic Index 19.02

Aromaticity 0.1220

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 1929.87

LogP -18.22

H-bond Donors 74.0

H-bond Acceptors 71.0

Rotatable Bonds 165.0

Heavy Atoms 336.0

Ring Count 11.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0152893 VERIFIED: NO

Provenance & Taxonomy

OrganismCrotalus durissus terrificus [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Disulfide4-36; 11-30; 18-37

Bio-Activity Profile

Function

Toxin