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Summary Structural details Experimental details Functional details Sequence Neighbor History Downloads

5O9Z

Cryo-EM structure of a pre-catalytic human spliceosome primed for activation (B complex)

Chains

Entity	Asym IDs	Number of Exact matches
1	A	78
2	B	66
3	C	53
4	D	52
5	E	25
6	F	1
7	G	31
8	H	26
9	I	14
10	J	30
11	K	12
12	L	9
13	M	10
14	N	12
15	O	32
16	P	30
17	Q	8
18	R	6
19	S TA Z	184
20	AA T UA	190
21	BA U VA	190
22	CA V WA	189
23	DA W XA	158
24	EA X YA	134
25	FA Y ZA	187
26	GA	19
27	HA	19
28	IA	19
29	JA	19
30	KA	19
31	LA	19
32	MA	19
33	NA	64
34	OA	52
35	PA	66
36	QA	63
37	RA
38	SA	50
39	AB	7
40	BB	73
41	CB	10
42	DB	13
43	EB	59

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PDB entries from 2026-07-08

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