6Y50: 5'domain of human 17S U2 snRNP

5'domain of human 17S U2 snRNP. Determined by electron microscopy at 4.1 Å resolution. Released 1 Jul 2020.

Method: Electron microscopy
Resolution: 4.1 Å
Organism: Homo sapiens
Chains: 9
Atoms: 14,916
Mol. weight: 727.56 kDa
Ligands: ZN
Released: 1 Jul 2020

Explore 6Y50 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

6Y50 contains 101 α-helices and 124 β-strands across 8 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain 8: 8 helices, 0 β-strands

Element	Residues	Length
α-helix	464-467	4
α-helix	472-474	3
α-helix	478-481	4
α-helix	485-492	8
α-helix	523-525	3
α-helix	526-529	4
α-helix	572-575	4
α-helix	579-582	4

Chain 9: 5 helices, 2 β-strands

Element	Residues	Length	Sheet
α-helix	394-400	7
β-strand	406-408	3	1
β-strand	414-416	3	1
α-helix	419-424	6
α-helix	429-438	10
α-helix	453-461	9
α-helix	491-497	7

Chain p: 2 helices, 0 β-strands

Element	Residues	Length	Sheet
α-helix	149-178	30
α-helix	190-193	4

Chain q: 2 helices, 5 β-strands

Element	Residues	Length	Sheet
β-strand	134-138	5	38
α-helix	146-154	9
β-strand	183-187	5	38
α-helix	191-200	10
β-strand	204-205	2	39
β-strand	210-211	2	39
β-strand	212-214	3	38

Chain u: 62 helices, 0 β-strands

Element	Residues	Length
α-helix	469-471	3
α-helix	493-505	13
α-helix	509-520	12
α-helix	523-525	3
α-helix	528-540	13
α-helix	546-562	17
α-helix	565-567	3
α-helix	571-582	12
α-helix	587-603	17
α-helix	606-613	8
α-helix	615-618	4
α-helix	622-638	17
α-helix	641-652	12
α-helix	658-675	18
α-helix	677-679	3
α-helix	682-690	9
α-helix	691-693	3
α-helix	699-715	17
α-helix	723-726	4
α-helix	728-733	6
α-helix	734-736	3
α-helix	741-756	16
α-helix	760-773	14
α-helix	782-797	16
α-helix	803-805	3
α-helix	806-810	5
α-helix	811-813	3
α-helix	814-818	5
α-helix	821-823	3
α-helix	827-844	18
α-helix	846-850	5
α-helix	862-879	18
α-helix	886-901	16
α-helix	908-921	14
α-helix	922-925	4
α-helix	929-940	12
α-helix	945-957	13
α-helix	959-962	4
α-helix	970-978	9
α-helix	987-1003	17
α-helix	1013-1024	12
α-helix	1029-1042	14
α-helix	1052-1062	11
α-helix	1063-1065	3
α-helix	1071-1088	18
α-helix	1090-1102	13
α-helix	1109-1122	14
α-helix	1125-1127	3
α-helix	1129-1133	5
α-helix	1134-1136	3
α-helix	1141-1157	17
α-helix	1159-1161	3
α-helix	1170-1177	8
α-helix	1186-1196	11
α-helix	1205-1215	11
α-helix	1217-1219	3
α-helix	1224-1241	18
α-helix	1243-1250	8
α-helix	1262-1274	13
α-helix	1281-1283	3
α-helix	1288-1290	3
α-helix	1298-1300	3

Chain v: 14 helices, 109 β-strands

Element	Residues	Length	Sheet
β-strand	3-6	4	6
β-strand	18-20	3	7
β-strand	29-33	5	7
β-strand	37-43	7	7
β-strand	50-57	8	7
β-strand	65-66	2	8
β-strand	77-80	4	8
β-strand	84	1	9
β-strand	87-91	5	8
β-strand	93	1	10
β-strand	98	1	10
β-strand	101-105	5	8
β-strand	110	1	9
β-strand	120-122	3	11
β-strand	130-133	4	11
β-strand	136	1	12
β-strand	139-142	4	11
β-strand	144-146	3	13
β-strand	152-154	3	13
β-strand	165-173	9	12
α-helix	180	1
β-strand	181-188	8	12
α-helix	199-201	3
β-strand	207-212	6	12
β-strand	221-227	7	12
β-strand	234	1	14
β-strand	237-238	2	14
α-helix	239	1
β-strand	247-252	6	14
β-strand	255-259	5	14
β-strand	267-270	4	14
α-helix	273	1
β-strand	274	1	15
β-strand	302-304	3	16
β-strand	310-312	3	16
β-strand	316-317	2	17
β-strand	322-324	3	17
β-strand	327	1	18
β-strand	329	1	16
β-strand	336-342	7	19
β-strand	346-351	6	19
β-strand	356-360	5	19
β-strand	373	1	18
β-strand	387	1	15
β-strand	396-401	6	19
β-strand	407-413	7	20
β-strand	422-427	6	20
β-strand	434-440	7	20
β-strand	442-443	2	21
β-strand	448-450	3	22
β-strand	458-463	6	23
β-strand	471-477	7	23
β-strand	482-486	5	23
β-strand	493	1	23
β-strand	507-509	3	24
β-strand	516-520	5	24
β-strand	523-527	5	24
β-strand	533-537	5	24
β-strand	546-548	3	25
β-strand	553-558	6	25
α-helix	559-561	3
β-strand	562-567	6	25
β-strand	576	1	25
β-strand	589-592	4	26
α-helix	593-596	4
β-strand	605-608	4	26
β-strand	613-618	6	26
β-strand	626-632	7	26
β-strand	637-643	7	27
β-strand	664-669	6	27
β-strand	673-678	6	27
β-strand	686-690	5	27
β-strand	700-706	7	28
β-strand	709-715	7	28
β-strand	720-725	6	28
β-strand	728-733	6	28
β-strand	734-735	2	21
β-strand	741-745	5	22
β-strand	753-758	6	22
β-strand	761-765	5	22
β-strand	774-780	7	20
β-strand	784-787	4	29
β-strand	790-791	2	29
β-strand	796-804	9	29
α-helix	809-823	15
α-helix	836-844	9
α-helix	849-852	4
β-strand	862-869	8	29
β-strand	876-881	6	29
β-strand	886	1	30
β-strand	891-894	4	30
β-strand	904-911	8	30
β-strand	914	1	31
β-strand	919	1	31
β-strand	922-928	7	30
α-helix	931-933	3
β-strand	939-945	7	30
β-strand	949	1	32
β-strand	954	1	32
β-strand	959-963	5	32
β-strand	966-971	6	32
β-strand	978-983	6	32
β-strand	990	1	33
β-strand	999-1003	5	34
β-strand	1004	1	33
β-strand	1009-1015	7	34
β-strand	1020-1022	3	34
β-strand	1025-1026	2	35
β-strand	1036-1037	2	36
β-strand	1043-1047	5	36
β-strand	1052-1057	6	36
β-strand	1087-1088	2	35
β-strand	1090-1096	7	36
β-strand	1104-1107	4	6
β-strand	1111	1	37
β-strand	1113	1	37
β-strand	1116-1119	4	6
β-strand	1127-1131	5	6
α-helix	1135-1151	17
β-strand	1173-1174	2	6
α-helix	1176-1179	4
α-helix	1187-1196	10
α-helix	1201-1215	15

Chain x: 5 helices, 0 β-strands

Element	Residues	Length
α-helix	28-39	12
α-helix	41-44	4
α-helix	48-51	4
α-helix	53-56	4
α-helix	61-71	11

Chain y: 3 helices, 8 β-strands

Element	Residues	Length	Sheet
β-strand	18-19	2	2
β-strand	22	1	3
β-strand	39-42	4	4
β-strand	44-45	2	2
α-helix	47-49	3
α-helix	52-54	3
β-strand	57	1	5
β-strand	64	1	5
β-strand	67	1	3
β-strand	70-72	3	4
α-helix	73-76	4

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Splicing factor 3A subunit 3	9	protein	501	Homo sapiens	Q12874 (AlphaFold model)
PHD finger-like domain-containing protein 5A	y	protein	110	Homo sapiens	Q7RTV0 (AlphaFold model)
Splicing factor 3B subunit 5	x	protein	86	Homo sapiens	Q9BWJ5 (AlphaFold model)
Splicing factor 3B subunit 2	8	protein	895	Homo sapiens	Q13435 (AlphaFold model)
Splicing factor 3B subunit 3	v	protein	1217	Homo sapiens	Q15393
Splicing factor 3B subunit 1	u	protein	1304	Homo sapiens	O75533
U2 snRNA	2	RNA	188	Homo sapiens
HIV Tat-specific factor 1	q	protein	755	Homo sapiens	O43719
Probable ATP-dependent RNA helicase DDX46	p	protein	1031	Homo sapiens	Q7L014

Sequence of entity 1 (9), FASTA

>6Y50_1 Splicing factor 3A subunit 3 (chains 9)
METILEQQRRYHEEKERLMDVMAKEMLTKKSTLRDQINSDHRTRAMQDRYMEVSGNLRDL
YDDKDGLRKEELNAISGPNEFAEFYNRLKQIKEFHRKHPNEICVPMSVEFEELLKARENP
SEEAQNLVEFTDEEGYGRYLDLHDCYLKYINLKASEKLDYITYLSIFDQLFDIPKERKNA
EYKRYLEMLLEYLQDYTDRVKPLQDQNELFGKIQAEFEKKWENGTFPGWPKETSSALTHA
GAHLDLSAFSSWEELASLGLDRLKSALLALGLKCGGTLEERAQRLFSTKGKSLESLDTSL
FAKNPKSKGTKRDTERNKDIAFLEAQIYEYVEILGEQRHLTHENVQRKQARTGEEREEEE
EEQISESESEDEENEIIYNPKNLPLGWDGKPIPYWLYKLHGLNINYNCEICGNYTYRGPK
AFQRHFAEWRHAHGMRCLGIPNTAHFANVTQIEDAVSLWAKLKLQKASERWQPDTEEEYE
DSSGNVVNKKTYEDLKRQGLL

Sequence of entity 2 (y), FASTA

>6Y50_2 PHD finger-like domain-containing protein 5A (chains y)
MAKHHPDLIFCRKQAGVAIGRLCEKCDGKCVICDSYVRPCTLVRICDECNYGSYQGRCVI
CGGPGVSDAYYCKECTIQEKDRDGCPKIVNLGSSKTDLFYERKKYGFKKR

Sequence of entity 3 (x), FASTA

>6Y50_3 Splicing factor 3B subunit 5 (chains x)
MTDRYTIHSQLEHLQSKYIGTGHADTTKWEWLVNQHRDSYCSYMGHFDLLNYFAIAENES
KARVRFNLMEKMLQPCGPPADKPEEN

Sequence of entity 4 (8), FASTA

>6Y50_4 Splicing factor 3B subunit 2 (chains 8)
MATEHPEPPKAELQLPPPPPPGHYGAWAAQELQAKLAEIGAPIQGNREELVERLQSYTRQ
TGIVLNRPVLRGEDGDKAAPPPMSAQLPGIPMPPPPLGLPPLQPPPPPPPPPPGLGLGFP
MAHPPNLGPPPPLRVGEPVALSEEERLKLAQQQAALLMQQEERAKQQGDHSLKEHELLEQ
QKRAAVLLEQERQQEIAKMGTPVPRPPQDMGQIGVRTPLGPRVAAPVGPVGPTPTVLPMG
APVPRPRGPPPPPGDENREMDDPSVGPKIPQALEKILQLKESRQEEMNSQQEEEEMETDA
RSSLGQSASETEEDTVSVSKKEKNRKRRNRKKKKKPQRVRGVSSESSGDREKDSTRSRGS
DSPAADVEIEYVTEEPEIYEPNFIFFKRIFEAFKLTDDVKKEKEKEPEKLDKLENSAAPK
KKGFEEEHKDSDDDSSDDEQEKKPEAPKLSKKKLRRMNRFTVAELKQLVARPDVVEMHDV
TAQDPKLLVHLKATRNSVPVPRHWCFKRKYLQGKRGIEKPPFELPDFIKRTGIQEMREAL
QEKEEQKTMKSKMREKVRPKMGKIDIDYQKLHDAFFKWQTKPKLTIHGDLYYEGKEFETR
LKEKKPGDLSDELRISLGMPVGPNAHKVPPPWLIAMQRYGPPPSYPNLKIPGLNSPIPES
CSFGYHAGGWGKPPVDETGKPLYGDVFGTNAAEFQTKTEEEEIDRTPWGELEPSDEESSE
EEEEEESDEDKPDETGFITPADSGLITPGGFSSVPAGMETPELIELRKKKIEEAMDGSET
PQLFTVLPEKRTATVGGAMMGSTHIYDMSTVMSRKGPAPELQGVEVALAPEELELDPMAM
TQKYEEHVREQQAQVEKEDFSDMVAEHAAKQKQKKRKAQPQDSRGGSKKYKEFKF

Sequence of entity 5 (v), FASTA

>6Y50_5 Splicing factor 3B subunit 3 (chains v)
MFLYNLTLQRATGISFAIHGNFSGTKQQEIVVSRGKILELLRPDPNTGKVHTLLTVEVFG
VIRSLMAFRLTGGTKDYIVVGSDSGRIVILEYQPSKNMFEKIHQETFGKSGCRRIVPGQF
LAVDPKGRAVMISAIEKQKLVYILNRDAAARLTISSPLEAHKANTLVYHVVGVDVGFENP
MFACLEMDYEEADNDPTGEAAANTQQTLTFYELDLGLNHVVRKYSEPLEEHGNFLITVPG
GSDGPSGVLICSENYITYKNFGDQPDIRCPIPRRRNDLDDPERGMIFVCSATHKTKSMFF
FLAQTEQGDIFKITLETDEDMVTEIRLKYFDTVPVAAAMCVLKTGFLFVASEFGNHYLYQ
IAHLGDDDEEPEFSSAMPLEEGDTFFFQPRPLKNLVLVDELDSLSPILFCQIADLANEDT
PQLYVACGRGPRSSLRVLRHGLEVSEMAVSELPGNPNAVWTVRRHIEDEFDAYIIVSFVN
ATLVLSIGETVEEVTDSGFLGTTPTLSCSLLGDDALVQVYPDGIRHIRADKRVNEWKTPG
KKTIVKCAVNQRQVVIALTGGELVYFEMDPSGQLNEYTERKEMSADVVCMSLANVPPGEQ
RSRFLAVGLVDNTVRIISLDPSDCLQPLSMQALPAQPESLCIVEMGGTEKQDELGERGSI
GFLYLNIGLQNGVLLRTVLDPVTGDLSDTRTRYLGSRPVKLFRVRMQGQEAVLAMSSRSW
LSYSYQSRFHLTPLSYETLEFASGFASEQCPEGIVAISTNTLRILALEKLGAVFNQVAFP
LQYTPRKFVIHPESNNLIIIETDHNAYTEATKAQRKQQMAEEMVEAAGEDERELAAEMAA
AFLNENLPESIFGAPKAGNGQWASVIRVMNPIQGNTLDLVQLEQNEAAFSVAVCRFSNTG
EDWYVLVGVAKDLILNPRSVAGGFVYTYKLVNNGEKLEFLHKTPVEEVPAAIAPFQGRVL
IGVGKLLRVYDLGKKKLLRKCENKHIANYISGIQTIGHRVIVSDVQESFIWVRYKRNENQ
LIIFADDTYPRWVTTASLLDYDTVAGADKFGNICVVRLPPNTNDEVDEDPTGNKALWDRG
LLNGASQKAEVIMNYHVGETVLSLQKTTLIPGGSESLVYTTLSGGIGILVPFTSHEDHDF
FQHVEMHLRSEHPPLCGRDHLSFRSYYFPVKNVIDGDLCEQFNSMEPNKQKNVSEELDRT
PPEVSKKLEDIRTRYAF

Sequence of entity 6 (u), FASTA

>6Y50_6 Splicing factor 3B subunit 1 (chains u)
MAKIAKTHEDIEAQIREIQGKKAALDEAQGVGLDSTGYYDQEIYGGSDSRFAGYVTSIAA
TELEDDDDDYSSSTSLLGQKKPGYHAPVALLNDIPQSTEQYDPFAEHRPPKIADREDEYK
KHRRTMIISPERLDPFADGGKTPDPKMNARTYMDVMREQHLTKEEREIRQQLAEKAKAGE
LKVVNGAAASQPPSKRKRRWDQTADQTPGATPKKLSSWDQAETPGHTPSLRWDETPGRAK
GSETPGATPGSKIWDPTPSHTPAGAATPGRGDTPGHATPGHGGATSSARKNRWDETPKTE
RDTPGHGSGWAETPRTDRGGDSIGETPTPGASKRKSRWDETPASQMGGSTPVLTPGKTPI
GTPAMNMATPTPGHIMSMTPEQLQAWRWEREIDERNRPLSDEELDAMFPEGYKVLPPPAG
YVPIRTPARKLTATPTPLGGMTGFHMQTEDRTMKSVNDQPSGNLPFLKPDDIQYFDKLLV
DVDESTLSPEEQKERKIMKLLLKIKNGTPPMRKAALRQITDKAREFGAGPLFNQILPLLM
SPTLEDQERHLLVKVIDRILYKLDDLVRPYVHKILVVIEPLLIDEDYYARVEGREIISNL
AKAAGLATMISTMRPDIDNMDEYVRNTTARAFAVVASALGIPSLLPFLKAVCKSKKSWQA
RHTGIKIVQQIAILMGCAILPHLRSLVEIIEHGLVDEQQKVRTISALAIAALAEAATPYG
IESFDSVLKPLWKGIRQHRGKGLAAFLKAIGYLIPLMDAEYANYYTREVMLILIREFQSP
DEEMKKIVLKVVKQCCGTDGVEANYIKTEILPPFFKHFWQHRMALDRRNYRQLVDTTVEL
ANKVGAAEIISRIVDDLKDEAEQYRKMVMETIEKIMGNLGAADIDHKLEEQLIDGILYAF
QEQTTEDSVMLNGFGTVVNALGKRVKPYLPQICGTVLWRLNNKSAKVRQQAADLISRTAV
VMKTCQEEKLMGHLGVVLYEYLGEEYPEVLGSILGALKAIVNVIGMHKMTPPIKDLLPRL
TPILKNRHEKVQENCIDLVGRIADRGAEYVSAREWMRICFELLELLKAHKKAIRRATVNT
FGYIAKAIGPHDVLATLLNNLKVQERQNRVCTTVAIAIVAETCSPFTVLPALMNEYRVPE
LNVQNGVLKSLSFLFEYIGEMGKDYIYAVTPLLEDALMDRDLVHRQTASAVVQHMSLGVY
GFGCEDSLNHLLNYVWPNVFETSPHVIQAVMGALEGLRVAIGPCRMLQYCLQGLFHPARK
VRDVYWKIYNSIYIGSQDALIAHYPRIYNDDKNTYIRYELDYIL

Sequence of entity 7 (2), FASTA

>6Y50_7 U2 snRNA (chains 2)
AUCGCUUCUCGGCCUUUUGGCUAAGAUCAAGUGUAGUAUCUGUUCUUAUCAGUUUAAUAU
CUGAUACGUCCUCUAUCCGAGGACAAUAUAUUAAAUGGAUUUUUGGAGCAGGGAGAUGGA
AUAGGAGCUUGCUCCGUCCACUCCACGCAUCGACCUGGUAUUGCAGUACCUCCAGGAACG
GUGCACCC

Sequence of entity 8 (q), FASTA

>6Y50_8 HIV Tat-specific factor 1 (chains q)
MSGTNLDGNDEFDEQLRMQELYGDGKDGDTQTDAGGEPDSLGQQPTDTPYEWDLDKKAWF
PKITEDFIATYQANYGFSNDGASSSTANVEDVHARTAEEPPQEKAPEPTDARKKGEKRKA
ESGWFHVEEDRNTNVYVSGLPPDITVDEFIQLMSKFGIIMRDPQTEEFKVKLYKDNQGNL
KGDGLCCYLKRESVELALKLLDEDEIRGYKLHVEVAKFQLKGEYDASKKKKKCKDYKKKL
SMQQKQLDWRPERRAGPSRMRHERVVIIKNMFHPMDFEDDPLVLNEIREDLRVECSKFGQ
IRKLLLFDRHPDGVASVSFRDPEEADYCIQTLDGRWFGGRQITAQAWDGTTDYQVEETSR
EREERLRGWEAFLNAPEANRGLRRSDSVSASERAGPSRARHFSEHPSTSKMNAQETATGM
AFEEPIDEKKFEKTEDGGEFEEGASENNAKESSPEKEAEEGCPEKESEEGCPKRGFEGSC
SQKESEEGNPVRGSEEDSPKKESKKKTLKNDCEENGLAKESEDDLNKESEEEVGPTKESE
EDDSEKESDEDCSEKQSEDGSEREFEENGLEKDLDEEGSEKELHENVLDKELEENDSENS
EFEDDGSEKVLDEEGSEREFDEDSDEKEEEEDTYEKVFDDESDEKEDEEYADEKGLEAAD
KKAEEGDADEKLFEESDDKEDEDADGKEVEDADEKLFEDDDSNEKLFDEEEDSSEKLFDD
SDERGTLGGFGSVEEGPLSTGSSFILSSDDDDDDI

Sequence of entity 9 (p), FASTA

>6Y50_9 Probable ATP-dependent RNA helicase DDX46 (chains p)
MGRESRHYRKRSASRGRSGSRSRSRSPSDKRSKRGDDRRSRSRDRDRRRERSRSRDKRRS
RSRDRKRLRRSRSRERDRSRERRRSRSRDRRRSRSRSRGRRSRSSSPGNKSKKTENRSRS
KEKTDGGESSKEKKKDKDDKEDEKEKDAGNFDQNKLEEEMRKRKERVEKWREEQRKKAME
NIGELKKEIEEMKQGKKWSLEDDDDDEDDPAEAEKEGNEMEGEELDPLDAYMEEVKEEVK
KFNMRSVKGGGGNEKKSGPTVTKVVTVVTTKKAVVDSDKKKGELMENDQDAMEYSSEEEE
VDLQTALTGYQTKQRKLLEPVDHGKIEYEPFRKNFYVEVPELAKMSQEEVNVFRLEMEGI
TVKGKGCPKPIKSWVQCGISMKILNSLKKHGYEKPTPIQTQAIPAIMSGRDLIGIAKTGS
GKTIAFLLPMFRHIMDQRSLEEGEGPIAVIMTPTRELALQITKECKKFSKTLGLRVVCVY
GGTGISEQIAELKRGAEIIVCTPGRMIDMLAANSGRVTNLRRVTYVVLDEADRMFDMGFE
PQVMRIVDNVRPDRQTVMFSATFPRAMEALARRILSKPIEVQVGGRSVVCSDVEQQVIVI
EEEKKFLKLLELLGHYQESGSVIIFVDKQEHADGLLKDLMRASYPCMSLHGGIDQYDRDS
IINDFKNGTCKLLVATSVAARGLDVKHLILVVNYSCPNHYEDYVHRAGRTGRAGNKGYAY
TFITEDQARYAGDIIKALELSGTAVPPDLEKLWSDFKDQQKAEGKIIKKSSGFSGKGFKF
DETEQALANERKKLQKAALGLQDSDDEDAAVDIDEQIESMFNSKKRVKDMAAPGTSSVPA
PTAGNAEKLEIAKRLALRINAQKNLGIESQDVMQQATNAILRGGTILAPTVSAKTIAEQL
AEKINAKLNYVPLEKQEEERQDGGQNESFKRYEEELEINDFPQTARWKVTSKEALQRISE
YSEAAITIRGTYFPPGKEPKEGERKIYLAIESANELAVQKAKAEITRLIKEELIRLQNSY
QPTNKGRYKVL

Ligands and cofactors

ID	Name	Formula	Copies
ZN	Zinc ion	Zn	3

Primary citation

Molecular architecture of the human 17S U2 snRNP. Zhang, Z., Will, C.L., Bertram, K. et al. Nature (2020) 583:310-313. DOI 10.1038/s41586-020-2344-3 · PubMed

Other PDB entries of the same protein (UniProt Q12874 (AlphaFold model), which also has an AlphaFold model), best resolution first:

7Q4O 2.1 Å, Substrate-bound A-like U2 snRNP
7Q4P 2.15 Å, U2 snRNP after ATP-dependent remodelling
7Q3L 2.21 Å, Human 17S U2 snRNP 5' domain
7EVO 2.5 Å, The cryo-EM structure of the human 17S U2 snRNP
8H6L 2.6 Å, Cryo-EM structure of human exon-defined spliceosome in the early B state.
8H6K 2.7 Å, Cryo-EM structure of human exon-defined spliceosome in the mature B state.
8HK1 2.7 Å, The cryo-EM structure of human pre-17S U2 snRNP
7VPX 3.0 Å, The cryo-EM structure of the human pre-A complex
8I0R 3.0 Å, The cryo-EM structure of human Bact-I complex
8I0T 3.0 Å, The cryo-EM structure of human Bact-III complex
7ONB 3.1 Å, Structure of the U2 5' module of the A3'-SSA complex
7QTT 3.1 Å, Structural organization of a late activated human spliceosome (Baqr, core region)

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