margatoxin   Click here for help

GtoPdb Ligand ID: 2547

Synonyms: MgTx | potassium channel toxin α-KTx 2.2
Comment: From Centruroides margaritatus (Scorpion)
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Selectivity at ion channels
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Kv1.2 Hs Channel blocker Inhibition 11.2 pIC50 - 1
pIC50 11.2 (IC50 6.4x10-12 M) [1]
Kv1.3 Hs Channel blocker - 10.0 – 10.3 pIC50 - 2-3
pIC50 10.0 – 10.3 (IC50 1x10-10 – 5x10-11 M) [2-3]
Kv1.1 Hs Channel blocker Inhibition 8.4 pIC50 - 1
pIC50 8.4 (IC50 4.2x10-9 M) [1]
Kv1.1 Rn Channel blocker Inhibition 8.3 pIC50 - 5
pIC50 8.3 (IC50 5.46x10-9 M) [5]
Kv1.7 Mm Channel blocker - 6.9 pIC50 - 4
pIC50 6.9 [4]