Peptide Database

Peptide NameParabutoxin 3, PBTx3

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC173H301N59O51S8

DescriptionStandard

        EVDMRCKSSKECLVKCKQATGRPNGKCMNRKCKCYPR
    

Molecular Weight4280.13 Da

Isoelectric Point (pI)9.59

Net Charge (pH 7.0)7.77

Net Charge (pH 7.4) 7.50

Charge Density (pH 7.0) 0.2101

GRAVY Index-1.11

Hydrophobic Moment 0.58

Boman Index-0.47

Instability Index38.19

Aliphatic Index 28.92

Aromaticity 0.0270

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1865.00

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

Amino Acid Composition

TPSA 1845.17

LogP -22.92

H-bond Donors 71.0

H-bond Acceptors 67.0

Rotatable Bonds 151.0

Heavy Atoms 291.0

Ring Count 3.0

Amide Bonds 39.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0073974 VERIFIED: NO

Provenance & Taxonomy

OrganismParabuthus transvaalicus [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide6-27; 12-32; 16-34

Bio-Activity Profile

Function

Toxin