Peptide Database

Peptide NameA-conotoxin pi1a

Function Ontology

Venom / Toxin ▸ General toxin ▸ Toxin

Standard StatusStandard

Sequence Length18 amino acids

Chemical FormulaC71H113N23O27S4

DescriptionStandard

        GDCCNDPPCKANNPALCN
    

Molecular Weight1849.05 Da

Isoelectric Point (pI)4.21

Net Charge (pH 7.0)-1.28

Net Charge (pH 7.4) -1.54

Charge Density (pH 7.0) -0.0710

GRAVY Index-0.71

Hydrophobic Moment 0.33

Boman Index-0.12

Instability Index25.06

Aliphatic Index 32.78

Aromaticity 0.0000

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 250.00

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

Amino Acid Composition

TPSA 804.63

LogP -12.82

H-bond Donors 27.0

H-bond Acceptors 30.0

Rotatable Bonds 54.0

Heavy Atoms 125.0

Ring Count 3.0

Amide Bonds 21.0

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_0418148 VERIFIED: NO

Provenance & Taxonomy

OrganismConus princeps [Animal]

FamilyConotoxin

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Toxin