1Q2J

Structural basis for tetrodotoxin-resistant sodium channel binding by mu-conotoxin SmIIIA

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0005576	cellular_component	extracellular region
A	0019871	molecular_function	sodium channel inhibitor activity

Functional Information from PROSITE/UniProt

site_id	PS60013
Number of Residues	20
Details	MU_CONOTOXIN Mu-conotoxin family signature. CCNGRrgCSSRWCRDHsRCC

Chain	Residue	Details
A	CYS3-CYS22

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Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	1
Details	MOD_RES: Pyrrolidone carboxylic acid => ECO:0000305|PubMed:12970353

Chain	Residue	Details
A	PCA1

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site_id	SWS_FT_FI2
Number of Residues	1
Details	MOD_RES: Cysteine amide => ECO:0000305|PubMed:12970353

Chain	Residue	Details
A	CYS22

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