Peptide Database

Peptide NameParabutoxin 2, PBTx2

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC165H258N42O66S7

DescriptionStandard

        DEEPKETCSDEMCVIYCKGEEYSTGVCDGPQKCKCSD
    

Molecular Weight4110.51 Da

Isoelectric Point (pI)4.23

Net Charge (pH 7.0)-6.28

Net Charge (pH 7.4) -6.59

Charge Density (pH 7.0) -0.1698

GRAVY Index-0.95

Hydrophobic Moment 0.34

Boman Index-0.20

Instability Index34.30

Aliphatic Index 26.22

Aromaticity 0.0541

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3355.00

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

Amino Acid Composition

TPSA 1755.12

LogP -22.05

H-bond Donors 64.0

H-bond Acceptors 67.0

Rotatable Bonds 138.0

Heavy Atoms 280.0

Ring Count 4.0

Amide Bonds 37.0

3D PDB MODEL

Drag to rotate. Click a residue or atom to inspect it; the selected residue is highlighted in amber in the current view mode. Use the buttons to zoom.

2D CHEMICAL STRUCTURE

Drag to move

Drag to move. Use the buttons to zoom.

RECORD: Rec_0148396 VERIFIED: NO

Provenance & Taxonomy

OrganismParabuthus transvaalicus [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide8-27; 13-33; 17-35

Bio-Activity Profile

Function

Toxin