9U7F

structure of human KCNQ1-KCNE1-CaM complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D, G, J (A, D, G, J)	Potassium voltage-gated channel subfamily KQT member 1	polymer	676	74800.5	4	UniProt (P51787) Pfam (PF00520) Pfam (PF03520)	Homo sapiens (human)	IKs producing slow voltage-gated potassium channel subunit alpha KvLQT1,KQT-like 1,Voltage-gated potassium channel subunit Kv7.1
2	B, E, H, K (B, E, H, K)	Calmodulin-1	polymer	149	16852.5	4	UniProt (P0DP23) Pfam (PF13499)	Homo sapiens (human)
3	C, F, I, L (C, F, I, L)	Potassium voltage-gated channel subfamily E member 1	polymer	129	14690.7	4	UniProt (P15382) Pfam (PF02060)	Homo sapiens (human)	Delayed rectifier potassium channel subunit IsK,IKs producing slow voltage-gated potassium channel subunit beta Mink,Minimal potassium channel,MinK
4	M, T, W, Z (A, D, G, J)	[(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate	non-polymer		1047.1	4	Chemie (PT5) PubChem (21584053) PubChem (24742075) PubChem (25021172) PubChem (46891800) PubChem (53480261) PubChem (49867532) PubChem (53731018) PubChem (5497157) PubChem (74343116) PubChem (644093) PubChem (88368868) PubChem (101103400) PubChem (101127471) PubChem (137349554) PubChem (146672970) PubChem (162802760) PubChem (137349667) PubChem (155387720) PubChem (177693253)
5	N, O, P, Q (A)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K) PubChem (813)
6	AA, BA, R, S, U... (K, B, E, H)	CALCIUM ION	non-polymer		40.1	8	Chemie (CA) PubChem (271)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	425375.0
Non-Polymers*	Number of molecules	16
	Total formula weight	4665.4
All*	Total formula weight	430040.4

*Water molecules are not included.