6TV6

Octameric McsB from Bacillus subtilis.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Protein-arginine kinase	polymer	374	42609.3	4	UniProt (P37570) Pfam (PF00217)	Bacillus subtilis (strain 168)
2	E, F, G, H (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3	I, J, K, L (A, B, C, D)	water	water		18.0	117	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 363 (UniProt: P37570)

PDB	External Database	Details
Met -2	-	initiating methionine
Ala -1	-	expression tag
Ser 0	-	expression tag
Leu 364	-	expression tag
Glu 365	-	expression tag
His 366	-	expression tag
His 367	-	expression tag
His 368	-	expression tag
His 369	-	expression tag
His 370	-	expression tag
His 371	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	170437.3
Non-Polymers*	Number of molecules	4
	Total formula weight	97.2
All*	Total formula weight	170534.5

*Water molecules are not included.