Peptide Database

Peptide NameNeurotoxin PKTx28C4

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length38 amino acids

Chemical FormulaC160H263N47O55S10

DescriptionStandard

        KAKCADIDQPCKTSCDCCETKGACTCYKSGCVCRMGSF
    

Molecular Weight4045.73 Da

Isoelectric Point (pI)8.14

Net Charge (pH 7.0)1.67

Net Charge (pH 7.4) 1.32

Charge Density (pH 7.0) 0.0440

GRAVY Index-0.23

Hydrophobic Moment 0.44

Boman Index-0.12

Instability Index37.92

Aliphatic Index 25.79

Aromaticity 0.0526

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1990.00

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

Amino Acid Composition

TPSA 1657.13

LogP -23.61

H-bond Donors 67.0

H-bond Acceptors 67.0

Rotatable Bonds 135.0

Heavy Atoms 272.0

Ring Count 3.0

Amide Bonds 38.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0350999 VERIFIED: NO

Provenance & Taxonomy

OrganismPhoneutria keyserlingi,Ctenus keyserlingii [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide4-18; 11-24; 17-33; 26-31

Bio-Activity Profile

Function

Toxin