5XAX

Parallel homodimer structures of the extracellular domains of the voltage-gated sodium channel beta4 subunit explain its role in cell-cell adhesion

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Sodium channel subunit beta-4	polymer	140	15791.7	2	UniProt (Q7M729) Pfam (PF07686)	Mus musculus (Mouse)
2	C (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)

Sequence modifications

A, B: 30 - 160 (UniProt: Q7M729)

PDB	External Database	Details
Gly 26	-	expression tag
Pro 27	-	expression tag
Leu 28	-	expression tag
Gly 29	-	expression tag
His 161	-	expression tag
His 162	-	expression tag
His 163	-	expression tag
His 164	-	expression tag
His 165	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	31583.4
Non-Polymers*	Number of molecules	1
	Total formula weight	92.1
All*	Total formula weight	31675.5

*Water molecules are not included.