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C4Pen   Click here for help

GtoPdb Ligand ID: 14460

Compound class: Peptide
Comment: C4Pen is a μ-conotoxin KIIIA analogue [1-2]. It is a potent NaV1.4 ion channel blocker.
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Bioactivity Comments
C4Pen does not inhibit NaV1.5 [2]. It induces muscle relaxation in vitro and in vivo.
Selectivity at ion channels
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
Nav1.4 Hs Channel blocker Inhibition 7.9 pIC50 - 2
pIC50 7.9 (IC50 1.11x10-8 M) [2]
Nav1.2 Hs Channel blocker Inhibition 7.5 pIC50 - 2
pIC50 7.5 (IC50 3.312x10-8 M) [2]
Nav1.7 Hs Channel blocker Inhibition 7.1 pIC50 - 2
pIC50 7.1 (IC50 7.74x10-8 M) [2]