9G9X

Structure of the human two pore domain potassium ion channel TASK-1 (K2P3.1)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Potassium channel subfamily K member 3	polymer	264	30117.0	2	UniProt (O14649) Pfam (PF07885)	Homo sapiens (human)	Acid-sensitive potassium channel protein TASK-1,TWIK-related acid-sensitive K(+) channel 1,Two pore potassium channel KT3.1,Two pore K(+) channel KT3.1
2	C, D, H, I (A, B)	CHOLESTEROL HEMISUCCINATE	non-polymer		486.7	4	Chemie (Y01) PubChem (16219150) PubChem (22210610) PubChem (65082) PubChem (363416) PubChem (45489984) PubChem (500055) PubChem (60078761) PubChem (57163942) PubChem (73440805) PubChem (89891013) PubChem (13301926) PubChem (13301927) PubChem (99567469) PubChem (99567468) PubChem (124427194) PubChem (124897021) PubChem (124897020) PubChem (10005657) PubChem (130340716) PubChem (11969853) PubChem (124301053) PubChem (124302591) PubChem (124303794) PubChem (124421343) PubChem (124427195) PubChem (137392566) PubChem (137496323) PubChem (124914595) PubChem (124914596) PubChem (131705526) PubChem (155804219) PubChem (137332121) PubChem (137496357) PubChem (146157332) PubChem (169132514) PubChem (154929912) PubChem (155199678) PubChem (156327905) PubChem (156426247) PubChem (156516588) PubChem (166979870) PubChem (167024614) PubChem (169132513) PubChem (170117245) PubChem (172400028)
3	E, F, G (A)	POTASSIUM ION	non-polymer		39.1	3	Chemie (K) PubChem (813)

Sequence modifications

A, B: 1 - 259 (UniProt: O14649)

PDB	External Database	Details
Asn 260	-	expression tag
Leu 261	-	expression tag
Tyr 262	-	expression tag
Phe 263	-	expression tag
Gln 264	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	60234.0
Non-Polymers*	Number of molecules	7
	Total formula weight	2064.2
All*	Total formula weight	62298.2

*Water molecules are not included.