7B0Y: Transcribing RNA polymerase II-U1 snRNP complex

Structure of a transcribing RNA polymerase II-U1 snRNP complex. Determined by electron microscopy at 3.6 Å resolution. Released 13 Jan 2021.

Method
Electron microscopy
Resolution
3.6 Å
Organisms
Sus scrofa domesticus, synthetic construct, Homo sapiens
Chains
25
Atoms
43,792
Mol. weight
823.57 kDa
Ligands
MG, ZN
Released
13 Jan 2021

Explore 7B0Y in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7B0Y contains 202 α-helices and 304 β-strands across 21 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 A: 80 helices, 78 β-strands

ElementResiduesLengthSheet
α-helix141
β-strand15-1621
β-strand20-2232
β-strand2513
α-helix26-272
α-helix28-347
β-strand4314
β-strand47-4825
β-strand51-5225
α-helix531
β-strand5614
α-helix60-623
α-helix82-854
β-strand88-9476
α-helix97-993
α-helix100-10910
β-strand11017
β-strand11717
α-helix124-1329
α-helix137-14812
β-strand15318
β-strand18718
β-strand190-19459
β-strand197-20159
β-strand213-21649
α-helix218-22710
α-helix230-2356
α-helix246-2483
β-strand250-25346
α-helix254-2563
β-strand265110
β-strand271110
α-helix272-2743
α-helix275-29521
α-helix300-31819
α-helix326-3272
β-strand329111
α-helix331-3333
α-helix3341
β-strand335111
α-helix3361
α-helix339-3424
α-helix350-3545
β-strand357-359312
β-strand362-369813
β-strand377-381513
α-helix382-3876
β-strand389-393514
α-helix3941
α-helix399-40810
β-strand416-420514
β-strand426-428314
β-strand445-449514
α-helix4501
β-strand455-459513
α-helix466-4683
β-strand469-477913
β-strand482-484313
α-helix487-4893
β-strand500-504513
α-helix509-51810
β-strand520113
α-helix522-5243
β-strand526-527215
β-strand532-533215
α-helix539-54810
β-strand554-555216
α-helix557-5648
α-helix5741
β-strand575117
α-helix576-5772
β-strand579-581318
β-strand585118
β-strand586-587216
α-helix588-5958
β-strand602-603219
β-strand629-631319
β-strand634-637419
α-helix642-6454
α-helix652-6598
α-helix662-68322
β-strand686120
α-helix689-6924
α-helix696-72126
α-helix727-7282
α-helix733-75927
α-helix765-7728
α-helix778-7858
β-strand789-790221
β-strand793122
β-strand796122
α-helix798-7992
β-strand802123
β-strand805123
β-strand822-823221
α-helix833-86735
β-strand872-873224
β-strand879-880224
β-strand886-888324
α-helix891-8933
β-strand896125
β-strand902-905426
α-helix913-9208
α-helix927-9337
β-strand934127
α-helix936-9449
α-helix947-96923
β-strand976-979426
α-helix983-99311
α-helix10011
β-strand1002127
α-helix1006-101914
α-helix1028-103710
α-helix1039-104810
α-helix1053-10564
α-helix1062-107918
β-strand1080125
α-helix1081-10822
α-helix1087-109610
α-helix1098-11003
α-helix1121-11288
β-strand1139-1140228
β-strand1141-1142229
β-strand1143130
α-helix1146-11494
α-helix1151-116111
β-strand1162131
β-strand1164-1165232
α-helix1166-11694
β-strand1170-1177833
α-helix1190-11978
β-strand1210-1216733
α-helix1218-12225
α-helix1228-123811
α-helix1240-12423
β-strand1243-1245333
β-strand1256-1261633
α-helix1281-129515
β-strand1297-1299332
β-strand1301131
β-strand1307-1310429
β-strand1319-1322434
β-strand1328-1331434
β-strand1335-1338429
α-helix1343-13464
β-strand1352130
β-strand1358-1359228
α-helix1362-13687
α-helix1371-138717
α-helix1395-140410
β-strand1408135
α-helix1416-14194
α-helix1426-14305
α-helix1435-144511
β-strand1448-144922
α-helix1454-14596
α-helix1467-14693
β-strand1471-1475536
Chain b: 5 helices, 6 β-strands
ElementResiduesLengthSheet
α-helix53-553
α-helix65-8824
β-strand104-108586
α-helix116-1238
β-strand129-136886
β-strand143-151986
α-helix154-16411
β-strand168-169287
β-strand172-173287
β-strand175-177386
α-helix190-1923
Chain B: 51 helices, 86 β-strands
ElementResiduesLengthSheet
α-helix16-183
α-helix19-3618
α-helix41-499
α-helix50-545
α-helix55-617
α-helix63-642
β-strand67-68237
β-strand83-84237
β-strand87-93738
β-strand97-99339
β-strand105-107339
α-helix110-1167
β-strand119140
β-strand121-1321238
β-strand133137
β-strand140-1531438
α-helix168-1736
β-strand185-187340
β-strand190-193440
α-helix194-1952
β-strand196-200541
β-strand206-208342
β-strand215-223942
β-strand233-238642
β-strand239143
β-strand240142
α-helix254-2552
β-strand256143
β-strand257-258244
β-strand259142
β-strand267-268244
α-helix269-2757
α-helix281-2888
α-helix295-30713
α-helix314-32411
α-helix332-34110
α-helix342-3465
α-helix349-3513
α-helix358-37619
α-helix381-3844
α-helix388-3903
β-strand391-394441
α-helix396-42328
α-helix431-4344
α-helix438-45013
β-strand468-469240
α-helix470-4712
α-helix475-4828
β-strand484145
β-strand485-486241
α-helix496-4994
α-helix503-5053
β-strand509146
β-strand525145
β-strand526146
β-strand531-532247
α-helix539-5479
β-strand551-552248
α-helix558-5614
β-strand565-569548
β-strand572-577648
α-helix580-59213
β-strand602-605448
β-strand612-615448
β-strand621-627747
β-strand628149
β-strand633149
α-helix637-6448
α-helix653-6586
β-strand662-666547
α-helix667-6704
α-helix679-6824
β-strand695-696247
α-helix700-7034
α-helix714-7163
β-strand717150
α-helix719-72810
β-strand732151
β-strand734152
β-strand747-751552
β-strand755153
β-strand759-760254
α-helix764-7674
β-strand776-782755
β-strand783120
β-strand793-797555
α-helix798-8025
β-strand808-8171052
β-strand822156
β-strand825156
β-strand827-829357
β-strand848158
β-strand853159
β-strand854158
α-helix8551
β-strand859-860252
β-strand865-867359
β-strand869-872457
β-strand889-891357
β-strand894-895259
α-helix896-8972
β-strand902-9111052
β-strand917-9271152
β-strand934-937455
β-strand942-949855
β-strand956160
β-strand965-967355
α-helix971-9755
β-strand977150
α-helix978-99316
β-strand997-998254
α-helix1008-10169
β-strand1025-1026255
β-strand1029160
α-helix10351
β-strand1036160
α-helix10371
β-strand1041-10501055
β-strand1051151
β-strand1060-1062313
β-strand1067161
β-strand1074161
α-helix1082-10832
β-strand1084-1086312
α-helix1088-109710
α-helix1100-11045
α-helix1105-11095
β-strand1115-111951
β-strand112511
β-strand1127-1129362
β-strand1134-1136362
β-strand1137163
β-strand1142163
β-strand1146-115051
α-helix1153-116311
β-strand116713
β-strand1170-117232
Chain c: 4 helices, 6 β-strands
ElementResiduesLengthSheet
β-strand11-15588
α-helix23-3412
α-helix35-373
β-strand40-46788
β-strand54-59688
α-helix62-7211
β-strand76189
β-strand81189
β-strand83-86488
α-helix92-987
Chain C: 8 helices, 19 β-strands
ElementResiduesLengthSheet
β-strand8-9264
β-strand13-14264
β-strand18-24764
α-helix28-4013
β-strand44-49665
β-strand50-51266
β-strand52-55467
α-helix61-699
β-strand73168
β-strand99-100265
β-strand101-102269
β-strand103-106467
α-helix1121
β-strand113-116470
α-helix117-1193
β-strand121-122269
β-strand129168
β-strand149-153570
β-strand158-161467
β-strand164-168565
α-helix174-1763
β-strand179-182464
β-strand185164
α-helix200-2023
α-helix218-2203
β-strand229-235764
α-helix241-26727
Chain D: 9 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand16171
β-strand21171
α-helix24-263
β-strand30-31272
α-helix34-4916
α-helix55-584
α-helix59-7012
α-helix78-8912
α-helix94-10310
α-helix108-1147
α-helix116-1183
α-helix124-13613
Chain e: 2 helices, 5 β-strands
ElementResiduesLengthSheet
α-helix19-268
α-helix30-389
β-strand42-46590
β-strand51-56690
β-strand66-761190
β-strand90-1011290
β-strand106-111690
Chain E: 11 helices, 13 β-strands
ElementResiduesLengthSheet
α-helix4-2421
β-strand26-27273
α-helix30-334
α-helix37-437
β-strand47174
β-strand52174
β-strand60-64573
β-strand71-75573
β-strand81-82275
α-helix84-9714
β-strand101-106673
β-strand109-110275
α-helix112-1209
β-strand126-131673
α-helix132-1354
α-helix139-1413
β-strand147-150435
α-helix151-1522
α-helix153-16311
α-helix167-1693
β-strand172-173235
α-helix178-1836
β-strand190-197835
β-strand201-209935

13 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA-directed RNA polymerase II subunit RPB1Aprotein1970Sus scrofa domesticusP11414 (AlphaFold model)
DNA-directed RNA polymerase subunit betaBprotein1174Sus scrofa domesticusA0A0B8RVL1 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB3Cprotein275Sus scrofa domesticusI3LCH3 (AlphaFold model)
DNA-directed RNA polymerase II subunit DDprotein142Sus scrofa domesticusA0A287ADR4 (AlphaFold model)
DNA-directed RNA polymerase II subunit EEprotein210Sus scrofa domesticusI3LSI7
DNA-directed RNA polymerase II subunit FFprotein127Sus scrofa domesticusA0A4X1VEK9
DNA-directed RNA polymerase II subunit RPB7Gprotein172Sus scrofa domesticusI3LJZ9
DNA-directed RNA polymerases I, II, and III subunit RPABC3Hprotein150Sus scrofa domesticusI3LCB2
DNA-directed RNA polymerase II subunit RPB9Iprotein125Sus scrofa domesticusP60899
DNA-directed RNA polymerases I, II, and III subunit RPABC5Jprotein67Sus scrofa domesticusA0A4X1VYD0
DNA-directed RNA polymerase II subunit RPB11-aKprotein117Sus scrofa domesticusF1RKE4
RPB12Lprotein58Sus scrofa domesticusA0A4X1TRS6

13 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>7B0Y_1 DNA-directed RNA polymerase II subunit RPB1 (chains A)
MHGGGPPSGDSACPLRTIKRVQFGVLSPDELKRMSVTEGGIKYPETTEGGRPKLGGLMDP
RQGVIERTGRCQTCAGNMTECPGHFGHIELAKPVFHVGFLVKTMKVLRCVCFFCSKLLVD
SNNPKIKDILAKSKGQPKKRLTHVYDLCKGKNICEGGEEMDNKFGVEQPEGDEDLTKEKG
HGGCGRYQPRIRRSGLELYAEWKHVNEDSQEKKILLSPERVHEIFKRISDEECFVLGMEP
RYARPEWMIVTVLPVPPLSVRPAVVMQGSARNQDDLTHKLADIVKINNQLRRNEQNGAAA
HVIAEDVKLLQFHVATMVDNELPGLPRAMQKSGRPLKSLKQRLKGKEGRVRGNLMGKRVD
FSARTVITPDPNLSIDQVGVPRSIAANMTFAEIVTPFNIDRLQELVRRGNSQYPGAKYII
RDNGDRIDLRFHPKPSDLHLQTGYKVERHMCDGDIVIFNRQPTLHKMSMMGHRVRILPWS
TFRLNLSVTTPYNADFDGDEMNLHLPQSLETRAEIQELAMVPRMIVTPQSNRPVMGIVQD
TLTAVRKFTKRDVFLERGEVMNLLMFLSTWDGKVPQPAILKPRPLWTGKQIFSLIIPGHI
NCIRTHSTHPDDEDSGPYKHISPGDTKVVVENGELIMGILCKKSLGTSAGSLVHISYLEM
GHDITRLFYSNIQTVINNWLLIEGHTIGIGDSIADSKTYQDIQNTIKKAKQDVIEVIEKA
HNNELEPTPGNTLRQTFENQVNRILNDARDKTGSSAQKSLSEYNNFKSMVVSGAKGSKIN
ISQVIAVVGQQNVEGKRIPFGFKHRTLPHFIKDDYGPESRGFVENSYLAGLTPTEFFFHA
MGGREGLIDTAVKTAETGYIQRRLIKSMESVMVKYDATVRNSINQVVQLRYGEDGLAGES
VEFQNLATLKPSNKAFEKKFRFDYTNERALRRTLQEDLVKDVLSNAHIQNELEREFERMR
EDREVLRVIFPTGDSKVVLPCNLLRMIWNAQKIFHINPRLPSDLHPIKVVEGVKELSKKL
VIVNGDDPLSRQAQENATLLFNIHLRSTLCSRRMAEEFRLSGEAFDWLLGEIESKFNQAI
AHPGEMVGALAAQSLGEPATQMTLNTFHYAGVSAKNVTLGVPRLKELINISKKPKTPSLT
VFLLGQSARDAERAKDILCRLEHTTLRKVTANTAIYYDPNPQSTVVAEDQEWVNVYYEMP
DFDVARISPWLLRVELDRKHMTDRKLTMEQIAEKINAGFGDDLNCIFNDDNAEKLVLRIR
IMNSDENKMQEEEEVVDKMDDDVFLRCIESNMLTDMTLQGIEQISKVYMHLPQTDNKKKI
IITEDGEFKALQEWILETDGVSLMRVLSEKDVDPVRTTSNDIVEIFTVLGIEAVRKALER
ELYHVISFDGSYVNYRHLALLCDTMTCRGHLMAITRHGVNRQDTGPLMKCSFEETVDVLM
EAAAHGESDPMKGVSENIMLGQLAPAGTGCFDLLLDAEKCKYGMEIPTNIPGLGAAGPTG
MFFGSAPSPMGGISPAMTPWNQGATPAYGAWSPSVGSGMTPGAAGFSPSAASDASGFSPG
YSPAWSPTPGSPGSPGPSSPYIPSPGGAMSPSYSPTSPAYEPRSPGGYTPQSPSYSPTSP
SYSPTSPSYSPTSPNYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSP
TSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPS
YSPTSPNYSPTSPNYTPTSPSYSPTSPSYSPTSPNYTPTSPNYSPTSPSYSPTSPSYSPT
SPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPTSPKYTPTSPSYSPSSPEYTPTSPKY
SPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTSPKYSPTSPTYSPTS
PKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDSDEEN
Sequence of entity 2 (B), FASTA
>7B0Y_2 DNA-directed RNA polymerase subunit beta (chains B)
MYDADEDMQYDEDDDEITPDLWQEACWIVISSYFDEKGLVRQQLDSFDEFIQMSVQRIVE
DAPPIDLQAEAQHASGEVEEPPRYLLKFEQIYLSKPTHWERDGAPSPMMPNEARLRNLTY
SAPLYVDITKTVIKEGEEQLQTQHQKTFIGKIPIMLRSTYCLLNGLTDRDLCELNECPLD
PGGYFIINGSEKVLIAQEKMATNTVYVFAKKDSKYAYTGECRSCLENSSRPTSTIWVSML
ARGGQGAKKSAIGQRIVATLPYIKQEVPIIIVFRALGFVSDRDILEHIIYDFEDPEMMEM
VKPSLDEAFVIQEQNVALNFIGSRGAKPGVTKEKRIKYAKEVLQKEMLPHVGVSDFCETK
KAYFLGYMVHRLLLAALGRRELDDRDHYGNKRLDLAGPLLAFLFRGMFKNLLKEVRIYAQ
KFIDRGKDFNLELAIKTRIISDGLKYSLATGNWGDQKKAHQARAGVSQVLNRLTFASTLS
HLRRLNSPIGRDGKLAKPRQLHNTLWGMVCPAETPEGHAVGLVKNLALMAYISVGSQPSP
ILEFLEEWSMENLEEISPAAIADATKIFVNGCWVGIHKDPEQLMNTLRKLRRQMDIIVSE
VSMIRDIREREIRIYTDAGRICRPLLIVEKQKLLLKKRHIDQLKEREYNNYSWQDLVASG
VVEYIDTLEEETVMLAMTPDDLQEKEVAYCSTYTHCEIHPSMILGVCASIIPFPDHNQSP
RNTYQSAMGKQAMGVYITNFHVRMDTLAHVLYYPQKPLVTTRSMEYLRFRELPAGINSIV
AIASYTGYNQEDSVIMNRSAVDRGFFRSVFYRSYKEQESKKGFDQEEVFEKPTRETCQGM
RHAIYDKLDDDGLIAPGVRVSGDDVIIGKTVTLPENEDELEGTNRRYTKRDCSTFLRTSE
TGIVDQVMVTLNQEGYKFCKIRVRSVRIPQIGDKFASRHGQKGTCGIQYRQEDMPFTCEG
ITPDIIINPHAIPSRMTIGHLIECLQGKVSANKGEIGDATPFNDAVNVQKISNLLSDYGY
HLRGNEVLYNGFTGRKITSQIFIGPTYYQRLKHMVDDKIHSRARGPIQILNRQPMEGRSR
DGGLRFGEMERDCQIAHGAAQFLRERLFEASDPYQVHVCNLCGIMAIANTRTHTYECRGC
RNKTQISLVRMPYACKLLFQELMSMSIAPRMMSV
Sequence of entity 3 (C), FASTA
>7B0Y_3 DNA-directed RNA polymerase II subunit RPB3 (chains C)
MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLH
DEFIAHRLGLIPLTSDDIVDKLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDL
ISNSPRVIPVTSRNRDNDPSDYVEQDDILIVKLRKGQELRLRAYAKKGFGKEHAKWNPTA
GVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLR
PETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN
Sequence of entity 4 (D), FASTA
>7B0Y_4 DNA-directed RNA polymerase II subunit D (chains D)
MAAGGSDPRAGDVEEDASQLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEV
FMKTLNYTARFSRFKNRETIASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEG
RFEDEELQQILDDIQTKRSFQY
Sequence of entity 5 (E), FASTA
>7B0Y_5 DNA-directed RNA polymerase II subunit E (chains E)
MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQFGDKPSEGRPRRTDLTV
LVAHNDDPTDQMFVFFPEEPKVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVD
MAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELLARYKLRENQLPRIQAGDPVA
RYFGIKRGQVVKIIRPSETAGRYITYRLVQ
Sequence of entity 6 (F), FASTA
>7B0Y_6 DNA-directed RNA polymerase II subunit F (chains F)
MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKY
ERARVLGTRALQIAMCAPVMVELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGV
DELIISD
Sequence of entity 7 (G), FASTA
>7B0Y_7 DNA-directed RNA polymerase II subunit RPB7 (chains G)
MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQ
PGRGFVLYPVKYKAIVFRPFKGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFD
PNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAIGSLMDDYLGLVS
Sequence of entity 8 (H), FASTA
>7B0Y_8 DNA-directed RNA polymerases I, II, and III subunit RPABC3 (chains H)
MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVI
ASTLYEDGTLDDGEYNPTDDRPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGG
LLMRLQGDANNLHGFEVDSRVYLLMKKLAF
Sequence of entity 9 (I), FASTA
>7B0Y_9 DNA-directed RNA polymerase II subunit RPB9 (chains I)
MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITH
EVDELTQIIADVSQDPTLPRTEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCG
HRWTE
Sequence of entity 10 (J), FASTA
>7B0Y_10 DNA-directed RNA polymerases I, II, and III subunit RPABC5 (chains J)
MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLL
NYAPLEK
Sequence of entity 11 (K), FASTA
>7B0Y_11 DNA-directed RNA polymerase II subunit RPB11-a (chains K)
MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAG
YKVPHPLEHKIIIRVQTTPDYSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE
Sequence of entity 12 (L), FASTA
>7B0Y_12 RPB12 (chains L)
MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg1
ZNZinc ionZn8

Primary citation

Structure of a transcribing RNA polymerase II-U1 snRNP complex. Zhang, S., Aibara, S., Vos, S.M. et al. Science (2021) 371:305-309. DOI 10.1126/science.abf1870 · PubMed

Other PDB entries of the same protein (UniProt P11414 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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