Mu-theraphotoxin-Hd1a

UniProtKB accession:  A0A0J9X1W9

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UniProtKB description:  Gating-modifier toxin that reversibly and voltage-independently inhibits human Nav1.1/SCN1A and Nav1.7/SCN9A (IC(50)=111 nM) (PubMed:25754331). It also shows moderate inhibition on Nav1.2/SCN2A (1 uM inhibits current by 55%), Nav1.6/SCN8A (31%), Nav1.3/SCN5A (27%) and Nav1.4/SCN4A (23%) (PubMed:25754331). This toxin inhibits Nav1.7/SCN9A by interacting with the S3b-S4 paddle motif in channel domain II (PubMed:25754331).