8HKF

ion 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, C, D (A, B, C, D)	Potassium channel subfamily T member 1	polymer	1235	139865.2	4	UniProt (Q5JUK3) Pfam (PF07885) Pfam (PF22614) Pfam (PF03493)	Homo sapiens (human)
2	E, M, Q, U (A, B, C, D)	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
3	F, G, H, I, J... (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	16	Chemie (K)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	559460.9
Non-Polymers*	Number of molecules	20
	Total formula weight	887.2
All*	Total formula weight	560348.1

*Water molecules are not included.