8POO

Low resolution structure of inactive conformation of the Ktr cation channel in presence of ATP and c-di-AMP

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 (I, J, A, B)	Ktr system potassium uptake protein B	polymer	445	48471.5	4	UniProt (O32081) Pfam (PF02386)	Bacillus subtilis subsp. subtilis str. 168	K(+)-uptake protein KtrB
2	E, F, G, H (C, D, E, G)	Ktr system potassium uptake protein A	polymer	288	32038.7	4	UniProt (O32080) Pfam (PF02254)	Bacillus subtilis subsp. subtilis str. 168	K(+)-uptake protein KtrA

Sequence modifications

C, D, E, G: 1 - 144 (UniProt: O32080)

PDB	External Database	Details
Val 22	Cys 22	engineered mutation

C, D, E, G: 149 - 282 (UniProt: O32080)

PDB	External Database	Details
Leu 145	-	linker
Glu 146	-	linker
Gly 147	-	linker
Ser 148	-	linker
Val 164	Cys 22	engineered mutation
Leu 283	-	expression tag
Glu 284	-	expression tag
Leu 285	-	expression tag
Val 286	-	expression tag
Pro 287	-	expression tag
Arg 288	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	322041.0
All*	Total formula weight	322041.0

*Water molecules are not included.