9HVO: Transcribing Pol II-RECQL5 complex

Structure of the transcribing Pol II-RECQL5 complex. Determined by electron microscopy at 2.8 Å resolution. Released 16 Jul 2025.

Method
Electron microscopy
Resolution
2.8 Å
Organisms
Sus scrofa domesticus, synthetic construct, Homo sapiens
Chains
16
Atoms
33,905
Mol. weight
661.42 kDa
Ligands
MG, ZN
Released
16 Jul 2025

Explore 9HVO in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9HVO contains 190 α-helices and 232 β-strands across 13 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: 75 helices, 74 β-strands

ElementResiduesLengthSheet
α-helix141
β-strand15-1621
β-strand20-2232
β-strand2513
α-helix28-347
β-strand4314
β-strand4715
β-strand5215
β-strand5614
α-helix60-623
β-strand86-95106
α-helix100-1078
β-strand11017
β-strand11717
α-helix124-1329
α-helix137-15014
β-strand15318
α-helix1861
β-strand18718
α-helix188-1892
β-strand190-19459
β-strand197-20159
β-strand213-21539
α-helix218-22710
α-helix230-2356
α-helix245-2484
β-strand249-25576
β-strand264-265210
β-strand271-272210
α-helix275-29521
α-helix300-31819
α-helix326-3283
β-strand329111
β-strand335111
α-helix339-3435
α-helix3491
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
α-helix4251
β-strand426-428314
α-helix435-4384
β-strand445-449514
α-helix4501
β-strand455-459513
α-helix466-4683
β-strand469-477913
β-strand482-484313
α-helix489-4924
β-strand500-504513
α-helix509-5146
α-helix515-5195
β-strand520113
α-helix521-5244
β-strand526-527215
β-strand532-533215
α-helix540-5489
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-helix765-7717
α-helix778-7858
β-strand789-790221
β-strand793122
β-strand796122
α-helix798-7992
β-strand802123
β-strand805123
β-strand822-823221
α-helix833-86836
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-helix946-96924
β-strand976-979426
α-helix983-99311
β-strand1002127
α-helix1006-101914
α-helix1028-103710
α-helix1039-104810
α-helix1051-10533
α-helix1054-10585
α-helix1062-107918
β-strand1080125
α-helix1081-10822
α-helix1087-110115
α-helix1121-11288
β-strand1139-1142428
β-strand1143129
α-helix1146-11494
α-helix1151-116111
β-strand1164-1165230
α-helix1166-11683
β-strand1170-1177831
α-helix1187-119610
β-strand1210-1216731
α-helix1218-12247
α-helix1228-123912
β-strand1243-1247531
β-strand1256-1261631
α-helix1281-129414
β-strand1297-1299330
β-strand1307-1310428
β-strand1319-1322432
β-strand1328-1331432
β-strand1335-1338428
α-helix1343-13486
β-strand1352129
β-strand1358-1359228
α-helix1362-13687
α-helix1371-138717
α-helix1395-140612
α-helix1416-14205
α-helix1426-14305
α-helix1435-144511
β-strand1448-144922
α-helix1454-14596
α-helix1467-14693
β-strand1471-1475533
Chain B: 53 helices, 82 β-strands
ElementResiduesLengthSheet
α-helix16-183
α-helix19-3719
α-helix41-499
α-helix50-545
α-helix55-617
α-helix63-642
β-strand83-84234
β-strand87-93735
β-strand97-99336
β-strand105-107336
α-helix110-1167
β-strand121-1301035
β-strand132-133234
β-strand142-1531235
α-helix168-1736
β-strand185-187337
β-strand190-193437
β-strand196-200538
α-helix2011
β-strand206-209439
β-strand215-220639
β-strand221-223340
α-helix2321
β-strand233-235340
β-strand236-240539
α-helix241-2422
β-strand256-259439
β-strand263141
β-strand267-268239
α-helix269-2757
α-helix281-2888
α-helix295-30713
α-helix314-32411
β-strand325141
α-helix332-34110
α-helix342-3465
α-helix358-37720
α-helix381-3844
β-strand391-394438
α-helix396-42328
α-helix431-4344
α-helix438-45013
β-strand453142
β-strand463142
β-strand468-469237
α-helix470-4712
α-helix475-4817
β-strand484-486338
α-helix503-5053
β-strand509143
β-strand523-525338
β-strand526143
β-strand531-534444
α-helix539-5479
β-strand551-552245
α-helix558-5603
β-strand565-569545
β-strand572-577645
α-helix580-59314
β-strand602-606545
β-strand611-615545
β-strand618-6271044
β-strand628146
β-strand633146
α-helix637-6448
α-helix646-6494
α-helix653-6586
β-strand662-666544
α-helix667-6704
β-strand675-676244
α-helix679-6824
β-strand695-696244
α-helix700-7034
α-helix714-7163
β-strand717147
α-helix719-72810
β-strand732148
β-strand734149
β-strand747-751549
β-strand755150
β-strand759-760251
α-helix762-7643
β-strand776-782752
β-strand783120
β-strand793-797552
α-helix798-8025
β-strand808-8171049
β-strand827-829353
β-strand853154
β-strand859-860249
β-strand865-867354
β-strand869-871353
β-strand890-891253
β-strand894-895254
α-helix896-8972
β-strand902-9111049
β-strand917-9271149
β-strand934-937452
β-strand942-949852
β-strand956155
β-strand965-967352
α-helix969-9713
α-helix972-9754
β-strand977147
α-helix978-99316
β-strand997-998251
α-helix1008-10169
β-strand1025-1026252
β-strand1029155
α-helix10351
β-strand1036155
α-helix10371
α-helix10401
β-strand1041-10501052
β-strand1051148
α-helix1055-10573
β-strand1060-1062313
β-strand1067156
β-strand1074156
α-helix1082-10832
β-strand1084-1086312
α-helix1088-109710
α-helix1100-11045
α-helix1105-11095
β-strand1115-111951
β-strand112511
α-helix11261
β-strand1127-1129357
β-strand1134-1136357
β-strand1137158
β-strand1142158
β-strand1146-115051
α-helix1153-116412
β-strand116713
β-strand1170-117232
Chain C: 11 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand8-14759
β-strand18-24759
α-helix28-4013
β-strand44-551260
α-helix61-699
β-strand73161
α-helix78-814
α-helix82-843
β-strand99-106860
β-strand113-116462
α-helix117-1193
β-strand121-122260
β-strand129161
α-helix130-1323
β-strand149-153562
β-strand158-1681160
α-helix174-1763
β-strand179-186859
α-helix200-2023
α-helix204-2063
α-helix218-2203
β-strand229-235759
α-helix241-26929
Chain D: 8 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix24-274
β-strand30-31233
α-helix34-4916
α-helix55-584
α-helix59-7012
α-helix77-8812
α-helix94-10310
α-helix108-1147
α-helix124-13714
Chain E: 12 helices, 13 β-strands
ElementResiduesLengthSheet
α-helix4-2320
β-strand26-27263
α-helix30-334
α-helix37-437
β-strand47164
β-strand52164
α-helix55-584
β-strand60-64563
β-strand71-75563
β-strand81-82265
α-helix84-9714
β-strand101-106663
β-strand109-110265
α-helix112-1209
β-strand126-131663
α-helix132-1354
α-helix139-1413
β-strand147-150466
α-helix151-1522
α-helix153-16311
α-helix167-1693
β-strand172-173266
α-helix178-1836
β-strand190-197866
β-strand201-209966
Chain F: 6 helices, 4 β-strands
ElementResiduesLengthSheet
β-strand56167
α-helix57-582
α-helix59-7416
α-helix77-793
α-helix89-9911
β-strand104-109633
α-helix1101
β-strand115-119533
α-helix120-1223
β-strand124167
Chain G: 4 helices, 14 β-strands
ElementResiduesLengthSheet
β-strand2-131233
α-helix15-173
α-helix23-3412
β-strand38133
β-strand44-541133
β-strand57-59333
α-helix601
β-strand66-771233
α-helix79-802
β-strand84-89668
β-strand98-101468
β-strand104-107468
β-strand118169
β-strand128170
β-strand129169
β-strand137170
β-strand142-1511068
β-strand158-162568
Chain H: 2 helices, 11 β-strands
ElementResiduesLengthSheet
β-strand4-151218
β-strand25-32818
β-strand38-44718
β-strand55-61718
β-strand65171
β-strand74117
β-strand83171
α-helix84-874
β-strand90-1011218
β-strand111-118818
β-strand121-128818
α-helix129-1313
β-strand140-148918

5 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 subunitAprotein1970Sus scrofa domesticusA0A8D1DPV6
DNA-directed RNA polymerase subunit betaBprotein1174Sus scrofa domesticusA0A0B8RVL1 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB3Cprotein275Sus scrofa domesticusI3LCH3 (AlphaFold model)
RNA polymerase II subunit DDprotein142Sus scrofa domesticusA0A4X1VM56 (AlphaFold model)
DNA-directed RNA polymerase II subunit EEprotein210Sus scrofa domesticusI3LSI7
DNA-directed RNA polymerases I, II, and III subunit RPABC2Fprotein127Sus scrofa domesticusA0A4X1VEK9
DNA-directed RNA polymerase subunitGprotein172Sus scrofa domesticusA0A4X1VKG7
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
RNA polymerase II, I and III subunit KLprotein58Sus scrofa domesticusA0A4X1TRS6

4 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>9HVO_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
YSPTSPNYSPTSPNYTPTSPSYSPTSPSYSPTSPNYTPTSPNYSPTSPSYSPTSPSYSPT
SPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPTSPKYTPTSPSYSPSSPEYTPTSPKY
SPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTSPKYSPTSPTYSPTS
PKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDSDEEN
Sequence of entity 2 (B), FASTA
>9HVO_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
>9HVO_3 DNA-directed RNA polymerase II subunit RPB3 (chains C)
MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLH
DEFIAHRLGLIPLTSDDIVDKLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDL
ISNSPRVIPVTSRNRDNDPSDYVEQDDILIVKLRKGQELRLRAYAKKGFGKEHAKWNPTA
GVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLR
PETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN
Sequence of entity 4 (D), FASTA
>9HVO_4 RNA polymerase II subunit D (chains D)
MAAGGSDPRAGDVEEDASQLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEV
FMKTLNYTARFSRFKNRETIASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEG
RFEDEELQQILDDIQTKRSFQY
Sequence of entity 5 (E), FASTA
>9HVO_5 DNA-directed RNA polymerase II subunit E (chains E)
MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQFGDKPSEGRPRRTDLTV
LVAHNDDPTDQMFVFFPEEPKVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVD
MAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELLARYKLRENQLPRIQAGDPVA
RYFGIKRGQVVKIIRPSETAGRYITYRLVQ
Sequence of entity 6 (F), FASTA
>9HVO_6 DNA-directed RNA polymerases I, II, and III subunit RPABC2 (chains F)
MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKY
ERARVLGTRALQIAMCAPVMVELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGV
DELIISD
Sequence of entity 7 (G), FASTA
>9HVO_7 DNA-directed RNA polymerase subunit (chains G)
MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQ
PGRGFVLYPVKYKAIVFRPFKGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFD
PNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAIGSLMDDYLGLVS
Sequence of entity 8 (H), FASTA
>9HVO_8 DNA-directed RNA polymerases I, II, and III subunit RPABC3 (chains H)
MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVI
ASTLYEDGTLDDGEYNPTDDRPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGG
LLMRLQGDANNLHGFEVDSRVYLLMKKLAF
Sequence of entity 9 (I), FASTA
>9HVO_9 DNA-directed RNA polymerase II subunit RPB9 (chains I)
MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITH
EVDELTQIIADVSQDPTLPRTEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCG
HRWTE
Sequence of entity 10 (J), FASTA
>9HVO_10 DNA-directed RNA polymerases I, II, and III subunit RPABC5 (chains J)
MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLL
NYAPLEK
Sequence of entity 11 (K), FASTA
>9HVO_11 DNA-directed RNA polymerase II subunit RPB11-a (chains K)
MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAG
YKVPHPLEHKIIIRVQTTPDYSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE
Sequence of entity 12 (L), FASTA
>9HVO_12 RNA polymerase II, I and III subunit K (chains L)
MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg1
ZNZinc ionZn8

Primary citation

Structural basis of RECQL5-induced RNA polymerase II transcription braking and subsequent reactivation. Zhang, L., Gordiyenko, Y., Morgan, T. et al. Nat Struct Mol Biol (2025) 32:1731-1740. DOI 10.1038/s41594-025-01586-6 · PubMed

Other PDB entries of the same protein (UniProt A0A8D1DPV6), best resolution first:

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