4RO0

Crystal structure of MthK gating ring in a ligand-free form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, a, B, b, C...	Calcium-gated potassium channel MthK	polymer	230	25448.0	40	UniProt (O27564) Pfam (PF02254) Pfam (PF02080) In PDB	Methanothermobacter thermautotrophicus

Contents of the asymmetric unit

Polymers	Number of chains	40
	Total formula weight	1017919.4
All*	Total formula weight	1017919.4

*Water molecules are not included.