24VJ

Cryo-EM structure of the human KCNQ2/KCNQ3 heterotetramer (3:1 stoichiometry) with CLM142 (M2223 CLM142, without symmetry expansion)

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Potassium voltage-gated channel subfamily KQT member 3	polymer	620	71032.9	1	UniProt (O43525)	Homo sapiens (human)	KQT-like 3,Potassium channel subunit alpha KvLQT3,Voltage-gated potassium channel subunit Kv7.3
2	B, C, D (B, C, D)	Green fluorescent protein,Potassium voltage-gated channel subfamily KQT member 2	polymer	753	84657.3	3	UniProt (P42212) UniProt (O43526)	Aequorea victoria	KQT-like 2,Neuroblastoma-specific potassium channel subunit alpha KvLQT2,Voltage-gated potassium channel subunit Kv7.2
3	E, F, K, L (A, C, D)	~{N}-(7-cyclopropyl-1-prop-2-ynyl-indazol-3-yl)-4-fluoranyl-benzamide	non-polymer		333.4	4	Chemie (A1E7E)
4	G, I, M (B, C, D)	(1R)-2-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-1-[(heptanoyloxy)methyl]ethyl octadecanoate	non-polymer		593.8	3	Chemie (9PE)
5	H, J, N (B, C, D)	(2R)-2-{[(4-O-hexopyranosyl-beta-D-glucopyranosyl)oxy]methyl}-4-{[(25R)-5beta,14beta,17beta-spirostan-3beta-yl]oxy}butyl 4-O-alpha-D-glucopyranosyl-beta-D-glucopyranoside	non-polymer		1165.3	3	Chemie (YJ0)

Sequence modifications

A: 93 - 691 (UniProt: O43525)

PDB	External Database	Details
Met 72	-	initiating methionine
Ala 73	-	expression tag
Ser 74	-	expression tag
Asp 75	-	expression tag
Tyr 76	-	expression tag
Lys 77	-	expression tag
Asp 78	-	expression tag
His 79	-	expression tag
Asp 80	-	expression tag
Ile 81	-	expression tag
Asp 82	-	expression tag
Tyr 83	-	expression tag
Lys 84	-	expression tag
Asp 85	-	expression tag
Asp 86	-	expression tag
Asp 87	-	expression tag
Asp 88	-	expression tag
Lys 89	-	expression tag
Gly 90	-	expression tag
Thr 91	-	expression tag
Met 92	-	expression tag

B, C, D: -192 - 44 (UniProt: P42212)

PDB	External Database	Details
Met -208	-	initiating methionine
Ala -207	-	expression tag
Met -206	-	expression tag
His -205	-	expression tag
His -204	-	expression tag
His -203	-	expression tag
His -202	-	expression tag
His -201	-	expression tag
His -200	-	expression tag
His -199	-	expression tag
His -198	-	expression tag
Gly -197	-	expression tag
Gly -196	-	expression tag
Ser -195	-	expression tag
Met -194	-	expression tag
Val -193	-	expression tag
Leu -130	Phe 64	conflict
Thr -129	Ser 65	conflict
Thr -87	Lys 107	conflict
Lys 12	Ala 206	conflict
Leu 37	His 231	conflict
Ser 45	-	linker
Gly 46	-	linker
Leu 47	-	linker
Arg 48	-	linker
Ser 49	-	linker
Gly 50	-	linker
Leu 51	-	linker
Glu 52	-	linker
Val 53	-	linker
Leu 54	-	linker
Phe 55	-	linker
Gln 56	-	linker
Gly 57	-	linker
Pro 58	-	linker
Gly 59	-	linker
Gly 60	-	linker
Arg 61	-	linker
Met 62	-	linker

B, C, D: 63 - 351 (UniProt: O43526)
B, C, D: 360 - 528 (UniProt: O43526)

PDB	External Database	Details
Gly 352	-	linker
Gly 353	-	linker
Gly 354	-	linker
Ser 355	-	linker
Gly 356	-	linker
Gly 357	-	linker
Gly 358	-	linker
Ser 359	-	linker
Val 529	-	expression tag
Glu 530	-	expression tag
Gly 531	-	expression tag
Gly 532	-	expression tag
Ser 533	-	expression tag
Ser 534	-	expression tag
Gly 535	-	expression tag
Gly 536	-	expression tag
Trp 537	-	expression tag
Ser 538	-	expression tag
His 539	-	expression tag
Pro 540	-	expression tag
Gln 541	-	expression tag
Phe 542	-	expression tag
Glu 543	-	expression tag
Lys 544	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	325004.7
Non-Polymers*	Number of molecules	10
	Total formula weight	6610.7
All*	Total formula weight	331615.4

*Water molecules are not included.