Peptide Database

Peptide NameCrotoxin chain alpha CA1, CA2 and CA4

Function Ontology

Enzyme / Catalytic activity ▸ Hydrolase ▸ Lipase

Venom / Toxin ▸ General toxin ▸ Toxin

Venom / Toxin ▸ Toxin

Standard StatusStandard

Sequence Length39 amino acids

Chemical FormulaC171H244N48O60S7

DescriptionStandard

        SSYGCYCGAGGQGWPQDASDRCCFEHDCCYAKLTGCDPT
    

Molecular Weight4156.51 Da

Isoelectric Point (pI)4.35

Net Charge (pH 7.0)-3.52

Net Charge (pH 7.4) -3.89

Charge Density (pH 7.0) -0.0902

GRAVY Index-0.53

Hydrophobic Moment 0.35

Boman Index-0.01

Instability Index29.32

Aliphatic Index 17.69

Aromaticity 0.1282

Extinction Coeff. Reduced 9970.00

Extinction Coeff. Oxidized 10345.00

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

Amino Acid Composition

TPSA 1718.45

LogP -23.56

H-bond Donors 66.0

H-bond Acceptors 65.0

Rotatable Bonds 126.0

Heavy Atoms 286.0

Ring Count 9.0

Amide Bonds 40.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0004148 VERIFIED: YES

Provenance & Taxonomy

OrganismCrotalus durissus terrificus [Animal]

Familyphospholipase A2 family

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide7-23

Bio-Activity Profile

Function

Toxin Venom Phospholipase A2 family Phospholipase A2