Peptide Database

Peptide NameNeurotoxin PKTx19C5 1

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length46 amino acids

Chemical FormulaC210H337N69O67S9

DescriptionStandard

        GKCADAWKSCDNLPCCVVNGYSRTCMCSANRCNCEETKKLREHFGR
    

Molecular Weight5188.93 Da

Isoelectric Point (pI)8.50

Net Charge (pH 7.0)2.77

Net Charge (pH 7.4) 2.39

Charge Density (pH 7.0) 0.0603

GRAVY Index-0.67

Hydrophobic Moment 0.51

Boman Index-0.25

Instability Index29.34

Aliphatic Index 36.09

Aromaticity 0.0652

Extinction Coeff. Reduced 6990.00

Extinction Coeff. Oxidized 7490.00

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

Amino Acid Composition

TPSA 2240.42

LogP -29.50

H-bond Donors 87.0

H-bond Acceptors 80.0

Rotatable Bonds 173.0

Heavy Atoms 355.0

Ring Count 6.0

Amide Bonds 49.0

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_0097586 VERIFIED: NO

Provenance & Taxonomy

OrganismPhoneutria keyserlingi,Ctenus keyserlingii [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide3-16; 10-25; 15-34; 27-32

Bio-Activity Profile

Function

Toxin