Peptide Database

Peptide NameNeurotoxin PKTx19C5 2

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length46 amino acids

Chemical FormulaC204H326N66O69S9

DescriptionStandard

        GKCADAWLSCDNLPCCVVNGYSRTCMCSANRCNCDDTKTLRENFGR
    

Molecular Weight5095.76 Da

Isoelectric Point (pI)7.69

Net Charge (pH 7.0)0.69

Net Charge (pH 7.4) 0.36

Charge Density (pH 7.0) 0.0149

GRAVY Index-0.44

Hydrophobic Moment 0.46

Boman Index-0.18

Instability Index28.33

Aliphatic Index 44.57

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 2223.02

LogP -31.20

H-bond Donors 86.0

H-bond Acceptors 79.0

Rotatable Bonds 166.0

Heavy Atoms 348.0

Ring Count 5.0

Amide Bonds 50.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0153407 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