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5T3M

Solution structure of a triple mutant of HwTx-IV - a potent blocker of Nav1.7

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0008200molecular_functionion channel inhibitor activity
Functional Information from PROSITE/UniProt
site_idPS60021
Number of Residues30
DetailsHWTX_1 Huwentoxin-1 family signature. CLgIfkaCnpsndqCCkssklvCsrktRWC
ChainResidueDetails
ACYS2-CYS31

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues5
DetailsSite: {"description":"Binds to the extracellular loop of voltage sensor domain II of sodium channels (Nav1.2/SCN2A and Nav1.7/SCN9A)","evidences":[{"source":"PubMed","id":"23760503","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsModified residue: {"description":"Isoleucine amide","evidences":[{"source":"PubMed","id":"12228241","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

244349

PDB entries from 2025-11-05

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