7UNC: DNA-directed RNA polymerase subunit

Pol II-DSIF-SPT6-PAF1c-TFIIS complex with rewrapped nucleosome. Determined by electron microscopy at 3.0 Å resolution. Released 19 Oct 2022.

Method
Electron microscopy
Resolution
3.0 Å
Organisms
Sus scrofa, Homo sapiens, synthetic construct
Chains
32
Atoms
57,630
Mol. weight
1577.92 kDa
Ligands
MG, ZN
Released
19 Oct 2022

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

Secondary structure: helices and β-sheets

7UNC contains 382 α-helices and 389 β-strands across 29 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: 5 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix45-5612
α-helix64-7815
β-strand83-842126
α-helix86-11025
α-helix113-1153
β-strand1191127
α-helix121-13111
Chain A: 85 helices, 73 β-strands
ElementResiduesLengthSheet
α-helix141
β-strand1511
β-strand20-2232
α-helix25-273
α-helix28-347
β-strand4313
β-strand47-4934
β-strand51-5224
β-strand5613
β-strand7015
β-strand7715
α-helix82-854
β-strand86-9496
α-helix100-10910
β-strand11017
β-strand11717
α-helix124-1329
α-helix137-14711
β-strand190-19458
β-strand197-20158
β-strand214-21638
α-helix2171
α-helix218-2269
α-helix230-2356
α-helix245-2473
β-strand250-25566
α-helix258-2603
α-helix262-2632
β-strand26419
α-helix2651
β-strand27219
α-helix273-2742
α-helix275-29218
α-helix293-2975
α-helix300-31819
α-helix326-3283
β-strand329110
α-helix3341
β-strand335110
α-helix3361
α-helix339-3435
α-helix350-3556
β-strand357-358211
β-strand362-369812
β-strand377-381512
α-helix382-3876
β-strand389-393513
α-helix401-4088
β-strand416-420513
β-strand426113
α-helix429-4313
β-strand445-449513
α-helix4501
β-strand455-459512
α-helix466-4683
β-strand469-477912
β-strand482-484312
α-helix486-4883
α-helix489-4924
β-strand500-504512
α-helix509-51810
β-strand520112
α-helix521-5244
β-strand526-527214
β-strand532-533214
α-helix539-54810
β-strand554-556315
α-helix557-5637
α-helix564-5663
α-helix573-5742
β-strand575116
α-helix576-5772
β-strand579115
β-strand585-587315
α-helix588-5958
β-strand602-604317
α-helix611-6133
β-strand628-630317
β-strand635-637317
α-helix642-6454
α-helix652-6598
α-helix663-68321
β-strand686118
α-helix689-6913
α-helix696-72126
α-helix726-7283
α-helix733-75927
α-helix765-7717
α-helix778-7814
α-helix782-7865
β-strand789-790219
β-strand793120
β-strand796120
α-helix798-7992
β-strand802121
β-strand805121
α-helix8111
α-helix818-8203
β-strand822-823219
α-helix833-86836
β-strand872-873222
β-strand879-880222
β-strand886-888322
α-helix891-8933
β-strand896123
β-strand902-905424
α-helix917-9204
α-helix927-9337
β-strand934125
α-helix936-9449
α-helix946-96924
β-strand976-979424
α-helix983-99311
α-helix10011
β-strand1002125
α-helix1006-101914
α-helix1028-103710
α-helix1039-104810
α-helix1051-10522
α-helix1053-10586
α-helix1062-107918
β-strand1080123
α-helix1081-10822
α-helix1087-110115
α-helix1121-11288
β-strand1140-1142326
β-strand1143127
α-helix1146-11483
α-helix1151-116111
β-strand1164-1165228
α-helix1166-11694
β-strand1170-1176729
α-helix1190-11945
β-strand1211-1216629
α-helix1218-12214
α-helix1228-123912
β-strand1243-1247529
β-strand1255-1261729
α-helix1282-129514
β-strand1297-1299328
β-strand1307-1310426
β-strand1319-1320230
β-strand1330-1331230
β-strand1335-1338426
α-helix1343-13486
β-strand1352127
β-strand1358126
α-helix1362-138827
α-helix1395-140612
α-helix1416-14205
α-helix1426-14294
α-helix1435-144511
β-strand1448-144922
α-helix1454-14596
β-strand1467131
β-strand1471-1475532
α-helix1479-14813
α-helix1534-15374
Chain b: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix25-284
α-helix31-4010
β-strand461127
α-helix50-7627
β-strand80-812126
α-helix83-9210
β-strand97-982128
Chain B: 60 helices, 81 β-strands
ElementResiduesLengthSheet
α-helix22-265
α-helix31-366
α-helix41-499
α-helix50-545
α-helix55-617
α-helix63-642
β-strand65-66236
β-strand83-931136
α-helix107-1093
α-helix110-1156
β-strand121-1331336
β-strand140136
β-strand143-1531136
α-helix1541
β-strand155137
α-helix168-1736
β-strand185-187337
β-strand190-194537
α-helix1951
β-strand196-200538
α-helix2011
β-strand206-208339
β-strand215-223939
α-helix231-2322
β-strand233-240839
β-strand256139
β-strand257140
β-strand263141
β-strand268140
α-helix269-2757
α-helix295-30511
α-helix314-32310
β-strand325141
α-helix332-34110
α-helix342-3465
α-helix349-3513
α-helix354-3563
α-helix360-37718
α-helix381-3844
α-helix388-3903
β-strand391-394438
α-helix398-40710
α-helix410-42314
α-helix431-4344
α-helix438-45013
β-strand453142
α-helix456-4616
β-strand463142
β-strand467-469337
α-helix475-4828
β-strand484-486338
α-helix4901
α-helix503-5053
β-strand509143
β-strand520138
β-strand523-525338
β-strand526143
β-strand531-532244
α-helix539-5457
β-strand551-552245
α-helix553-5553
α-helix558-5614
β-strand565-569545
β-strand572-577645
α-helix580-59112
β-strand602-606545
β-strand611-615545
β-strand621-627744
β-strand628-629246
β-strand632-633246
α-helix637-6448
α-helix653-6575
β-strand662-666544
β-strand675-676244
α-helix679-6824
β-strand695-696244
α-helix700-7034
α-helix708-7103
α-helix714-7163
α-helix719-72810
β-strand732147
β-strand734148
β-strand747-751548
β-strand755149
β-strand759-760250
α-helix763-7664
β-strand776-782751
β-strand783118
β-strand793-797551
α-helix798-8025
β-strand808-8171048
β-strand827-829352
β-strand837152
α-helix845-8473
β-strand849153
β-strand853153
α-helix854-8552
β-strand859-860248
β-strand865-867353
β-strand869-872452
β-strand889-891352
β-strand894-895253
α-helix896-8972
β-strand902-9111048
β-strand917-9271148
β-strand934-937451
β-strand942-949851
β-strand956154
β-strand965-967351
α-helix969-9713
α-helix978-99316
α-helix9961
β-strand997-998250
α-helix1008-101710
β-strand1025-1026251
β-strand1029154
α-helix10351
β-strand1036154
α-helix10371
α-helix10401
β-strand1041-10501051
β-strand1051147
α-helix1055-10573
β-strand1060-1062312
β-strand1067155
β-strand1074155
β-strand1085-1086211
α-helix1088-109710
β-strand1099131
α-helix1100-11045
α-helix1105-11095
β-strand1115-111951
β-strand112511
α-helix11261
β-strand1127-1129356
β-strand1134-1136356
β-strand1137157
β-strand1142157
β-strand1146-115051
α-helix1153-116311
β-strand1170-117232
Chain c: 5 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix17-215
α-helix27-3610
β-strand42-43233
α-helix46-7227
β-strand77-78234
α-helix80-8910
α-helix91-966
β-strand100-102335
Chain C: 12 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand8-14758
β-strand18-24758
α-helix28-4013
β-strand43-551359
α-helix61-7010
β-strand73160
α-helix78-803
α-helix83-842
α-helix85-873
β-strand99-106859
β-strand113-116461
α-helix117-1193
β-strand121-122259
β-strand129160
α-helix130-1323
α-helix147-1482
β-strand149-153561
β-strand158-1691259
α-helix174-1763
β-strand179-186858
α-helix204-2063
α-helix218-2203
β-strand228-235858
α-helix241-26828
Chain d: 4 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix35-4511
β-strand50-51234
α-helix53-8028
β-strand85-86233
α-helix88-9811
α-helix101-11919
Chain D: 10 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand16164
α-helix17-193
β-strand21164
α-helix24-274
β-strand30-31232
α-helix34-4916
α-helix55-584
α-helix59-7012
α-helix77-8812
α-helix94-1029
α-helix108-1147
α-helix116-1183
α-helix124-13714

21 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 subunitAprotein1984Sus scrofaA0A7M4DUC2
DNA-directed RNA polymerase subunit betaBprotein1251Sus scrofaA0A4X1TVZ5 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB3Cprotein275Sus scrofaA0A481DF93 (AlphaFold model)
RPOL4c domain-containing proteinDprotein184Sus scrofaA0A8D1GCS3 (AlphaFold model)
DNA-directed RNA polymerase II subunit EEprotein210Sus scrofaA0A4X1VTX4
DNA-directed RNA polymerases I, II, and III subunit RPABC2Fprotein127Sus scrofaA0A4X1VEK9
DNA-directed RNA polymerase II subunit RPB7Gprotein172Sus scrofaA0A4X1VKG7
RPB8Hprotein150Sus scrofa
RPB9Iprotein125Sus scrofa
RPB10Jprotein67Sus scrofa
RPB11Kprotein117Sus scrofa
RNA polymerase II subunit KLprotein58Sus scrofaA0A4X1TRS6

16 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>7UNC_1 DNA-directed RNA polymerase subunit (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
YSPTSPSYSPTSPSYSPTSPNYSPTSPNYTPTSPSYSPTSPSYSPTSPNYTPTSPNYSPT
SPSYSPTSPSYSPTSPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPTSPKYTPTSPSY
SPSSPEYTPTSPKYSPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTS
PKYSPTSPTYSPTSPKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDS
DEEN
Sequence of entity 2 (B), FASTA
>7UNC_2 DNA-directed RNA polymerase subunit beta (chains B)
MCSTNLSQALAYFRAGANLTAASLWAGFRGSRRIFWERRKRKSLCLALRPGGACWRWLLA
VSCVSLRGLGAPGSCANMYDADEDMQYDEDDDEITPDLWQEACWIVISSYFDEKGLVRQQ
LDSFDEFIQMSVQRIVEDAPPIDLQAEAQHASGEVEEPPRYLLKFEQIYLSKPTHWERDG
APSPMMPNEARLRNLTYSAPLYVDITKTVIKEGEEQLQTQHQKTFIGKIPIMLRSTYCLL
NGLTDRDLCELNECPLDPGGYFIINGSEKVLIAQEKMATNTVYVFAKKDSKYAYTGECRS
CLENSSRPTSTIWVSMLARGGQGAKKSAIGQRIVATLPYIKQEVPIIIVFRALGFVSDRD
ILEHIIYDFEDPEMMEMVKPSLDEAFVIQEQNVALNFIGSRGAKPGVTKEKRIKYAKEVL
QKEMLPHVGVSDFCETKKAYFLGYMVHRLLLAALGRRELDDRDHYGNKRLDLAGPLLAFL
FRGMFKNLLKEVRIYAQKFIDRGKDFNLELAIKTRIISDGLKYSLATGNWGDQKKAHQAR
AGVSQVLNRLTFASTLSHLRRLNSPIGRDGKLAKPRQLHNTLWGMVCPAETPEGHAVGLV
KNLALMAYISVGSQPSPILEFLEEWSMENLEEISPAAIADATKIFVNGCWVGIHKDPEQL
MNTLRKLRRQMDIIVSEVSMIRDIREREIRIYTDAGRICRPLLIVEKQKLLLKKRHIDQL
KEREYNNYSWQDLVASGVVEYIDTLEEETVMLAMTPDDLQEKEVAYCSTYTHCEIHPSMI
LGVCASIIPFPDHNQSPRNTYQSAMGKQAMGVYITNFHVRMDTLAHVLYYPQKPLVTTRS
MEYLRFRELPAGINSIVAIASYTGYNQEDSVIMNRSAVDRGFFRSVFYRSYKEQESKKGF
DQEEVFEKPTRETCQGMRHAIYDKLDDDGLIAPGVRVSGDDVIIGKTVTLPENEDELEGT
NRRYTKRDCSTFLRTSETGIVDQVMVTLNQEGYKFCKIRVRSVRIPQIGDKFASRHGQKG
TCGIQYRQEDMPFTCEGITPDIIINPHAIPSRMTIGHLIECLQGKVSANKGEIGDATPFN
DAVNVQKISNLLSDYGYHLRGNEVLYNGFTGRKITSQIFIGPTYYQRLKHMVDDKIHSRA
RGPIQILNRQPMEGRSRDGGLRFGEMERDCQIAHGAAQFLRERLFEASDPYQVHVCNLCG
IMAIANTRTHTYECRGCRNKTQISLVRMPYACKLLFQELMSMSIAPRMMSV
Sequence of entity 3 (C), FASTA
>7UNC_3 DNA-directed RNA polymerase II subunit RPB3 (chains C)
MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLH
DEFIAHRLGLIPLTSDDIVDKLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDL
ISNSPRVIPVTSRNRDNDPSDYVEQDDILIVKLRKGQELRLRAYAKKGFGKEHAKWNPTA
GVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLR
PETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN
Sequence of entity 4 (D), FASTA
>7UNC_4 RPOL4c domain-containing protein (chains D)
MWGPAQPYSDSALSPKPRPFRAVFRGSALPFPAVRVEVRGRSMAAGGSDPRAGDVEEDAS
QLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEVFMKTLNYTARFSRFKNRE
TIASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEGRFEDEELQQILDDIQTKR
SFQY
Sequence of entity 5 (E), FASTA
>7UNC_5 DNA-directed RNA polymerase II subunit E (chains E)
MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQFGDKPSEGRPRRTDLTV
LVAHNDDPTDQMFVFFPEEPKVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVD
MAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELLARYKLRENQLPRIQAGDPVA
RYFGIKRGQVVKIIRPSETAGRYITYRLVQ
Sequence of entity 6 (F), FASTA
>7UNC_6 DNA-directed RNA polymerases I, II, and III subunit RPABC2 (chains F)
MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKY
ERARVLGTRALQIAMCAPVMVELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGV
DELIISD
Sequence of entity 7 (G), FASTA
>7UNC_7 DNA-directed RNA polymerase II subunit RPB7 (chains G)
MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQ
PGRGFVLYPVKYKAIVFRPFKGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFD
PNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAIGSLMDDYLGLVS
Sequence of entity 8 (H), FASTA
>7UNC_8 RPB8 (chains H)
MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVI
ASTLYEDGTLDDGEYNPTDDRPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGG
LLMRLQGDANNLHGFEVDSRVYLLMKKLAF
Sequence of entity 9 (I), FASTA
>7UNC_9 RPB9 (chains I)
MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITH
EVDELTQIIADVSQDPTLPRTEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCG
HRWTE
Sequence of entity 10 (J), FASTA
>7UNC_10 RPB10 (chains J)
MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLL
NYAPLEK
Sequence of entity 11 (K), FASTA
>7UNC_11 RPB11 (chains K)
MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAG
YKVPHPLEHKIIIRVQTTPDYSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE
Sequence of entity 12 (L), FASTA
>7UNC_12 RNA polymerase II subunit K (chains L)
MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg1
ZNZinc ionZn8

Primary citation

Structural basis of nucleosome retention during transcription elongation. Filipovski, M., Soffers, J.H.M., Vos, S.M. et al. Science (2022) 376:1313-1316. DOI 10.1126/science.abo3851 · PubMed

Other PDB entries of the same protein (UniProt A0A7M4DUC2), best resolution first:

Browse structure collections

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