7ADI

KirBac3.1 W46R: role of a highly conserved tryptophan at the membrane-water interface of Kir channel

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Inward rectifier potassium channel Kirbac3.1	polymer	301	33753.8	2	UniProt (D9N164) Pfam (PF01007) Pfam (PF07885) Pfam (PF17655) In PDB	Magnetospirillum magnetotacticum
2	A	POTASSIUM ION	non-polymer		39.1	3	Chemie (K)
3	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4		water	water		18.0	23	Chemie (HOH)

Sequence modifications

A, B: 1 - 295 (UniProt: D9N164)

PDB	External Database	Details
Arg 46	Trp 46	engineered mutation
His 296	-	expression tag
His 297	-	expression tag
His 298	-	expression tag
His 299	-	expression tag
His 300	-	expression tag
His 301	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	67507.5
Non-Polymers*	Number of molecules	4
	Total formula weight	141.6
All*	Total formula weight	67649.1

*Water molecules are not included.