6U5N

Calcium-bound MthK gating ring state 2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E, B, F, C...	Calcium-gated potassium channel MthK	polymer	336	37356.2	8	UniProt (O27564) Pfam (PF07885) Pfam (PF02254) Pfam (PF02080) In PDB	Methanothermobacter thermautotrophicus
2	D, H, A, E, B...	CALCIUM ION	non-polymer		40.1	24	Chemie (CA)
3		water	water		18.0	8	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	298849.3
Non-Polymers*	Number of molecules	24
	Total formula weight	961.9
All*	Total formula weight	299811.2

*Water molecules are not included.