Peptide Database

Peptide NameNeurotoxin alpha-KTx 12.7

Function Ontology

Membrane / Ion-channel modulation ▸ Ion channel modulation

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length38 amino acids

Chemical FormulaC183H298N56O53S8

DescriptionStandard

        QKPTEIKCRYPADCHIMCRKVTGRAEGKCMNGKCTCYY
    

Molecular Weight4387.19 Da

Isoelectric Point (pI)9.06

Net Charge (pH 7.0)4.79

Net Charge (pH 7.4) 4.43

Charge Density (pH 7.0) 0.1260

GRAVY Index-0.75

Hydrophobic Moment 0.38

Boman Index-0.24

Instability Index45.17

Aliphatic Index 33.42

Aromaticity 0.0789

Extinction Coeff. Reduced 4470.00

Extinction Coeff. Oxidized 4845.00

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

Amino Acid Composition

TPSA 1786.38

LogP -19.15

H-bond Donors 69.0

H-bond Acceptors 67.0

Rotatable Bonds 146.0

Heavy Atoms 300.0

Ring Count 6.0

Amide Bonds 39.0

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_0374781 VERIFIED: NO

Provenance & Taxonomy

OrganismLychas mucronatus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin Channel blocker