4MZ3

Crystal structure of the voltage-gated sodium channel beta 4 subunit extracellular domain, C131W mutant

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	129	14764.6	2	UniProt (Q8IWT1) Pfam (PF07686)	Homo sapiens (human)
2	C, D (A, B)	water	water		18.0	272	Chemie (HOH)

Sequence modifications

A, B: 32 - 157 (UniProt: Q8IWT1)

PDB	External Database	Details
Ser 29	-	expression tag
Asn 30	-	expression tag
Ala 31	-	expression tag
Trp 131	Cys 131	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	29529.2
All*	Total formula weight	29529.2

*Water molecules are not included.