4HYO

Crystal Structure of MthK Pore

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, E...	Calcium-gated potassium channel mthK	polymer	91	10153.0	8	UniProt (O27564) Pfam (PF07885) In PDB	Methanothermobacter thermautotrophicus
2	A, E	POTASSIUM ION	non-polymer		39.1	8	Chemie (K)
3	G, H, A, B, C...	HEXANE-1,6-DIOL	non-polymer		118.2	12	Chemie (HEZ)
4		water	water		18.0	266	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H: 11 - 101 (UniProt: O27564)

PDB	External Database	Details
His 68	Ser 68	engineered mutation
Cys 77	Val 77	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	81223.7
Non-Polymers*	Number of molecules	20
	Total formula weight	1730.9
All*	Total formula weight	82954.6

*Water molecules are not included.