5IYC: Human core-PIC in the initial transcribing state

Human core-PIC in the initial transcribing state. Determined by electron microscopy at 3.9 Å resolution. Released 18 May 2016.

Method
Electron microscopy
Resolution
3.9 Å
Organism
Homo sapiens
Chains
23
Atoms
47,927
Mol. weight
897.5 kDa
Ligands
ZN, MG
Released
18 May 2016

Explore 5IYC in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5IYC contains 256 α-helices and 268 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: 76 helices, 66 β-strands

ElementResiduesLengthSheet
β-strand1511
β-strand20-2232
α-helix25-273
α-helix28-347
β-strand86-95103
α-helix100-10910
β-strand11014
α-helix1111
β-strand11714
α-helix124-1318
α-helix137-15014
β-strand15315
β-strand18715
β-strand192-19436
β-strand197-20046
β-strand214-21526
α-helix216-2172
α-helix218-22710
α-helix230-2367
α-helix245-2484
β-strand249-25573
α-helix256-2572
α-helix258-2603
α-helix275-29521
α-helix301-31818
β-strand328-32927
α-helix334-3363
α-helix339-3446
α-helix349-3557
β-strand35818
β-strand362-36989
β-strand377-38159
α-helix382-3876
β-strand389-393510
α-helix3941
α-helix399-40810
β-strand416-420510
β-strand426-428310
α-helix435-4373
β-strand442111
β-strand444111
β-strand445-449510
α-helix4501
β-strand455-45959
α-helix466-4683
β-strand471-47779
β-strand482-48439
α-helix486-4894
β-strand500-50459
α-helix509-5179
β-strand52019
α-helix521-5233
β-strand526-527212
β-strand532-533212
α-helix540-54910
β-strand554-555213
α-helix557-56610
α-helix574-5774
β-strand579-581314
β-strand585114
β-strand586-587213
α-helix588-5958
β-strand602115
β-strand629-631315
β-strand634-637415
α-helix642-6454
α-helix652-6609
α-helix662-68322
β-strand686116
α-helix689-6913
α-helix696-72126
α-helix727-7282
α-helix733-75927
α-helix765-7728
α-helix778-7858
β-strand789-790217
β-strand793118
β-strand796118
β-strand802119
β-strand805119
α-helix818-8203
β-strand822-823217
α-helix833-86836
β-strand872-873220
β-strand879-880220
β-strand886-888320
α-helix891-8933
β-strand896121
β-strand901-905522
α-helix907-9093
α-helix913-9208
α-helix938-9425
α-helix946-96924
β-strand976-980522
α-helix983-99311
α-helix1001-10022
α-helix1006-101914
α-helix1028-103710
α-helix1039-104810
α-helix1051-10533
α-helix1054-10585
α-helix1062-107918
β-strand1080121
α-helix1087-110014
α-helix1121-11299
β-strand1139-1142423
β-strand1143124
α-helix1146-11494
α-helix1151-116111
β-strand1163-1165325
α-helix1166-11694
β-strand1170-1177826
α-helix1181-11833
α-helix1190-11956
α-helix1203-12053
β-strand1210-1216726
α-helix1218-12236
α-helix1228-123912
β-strand1245-1247326
β-strand1256-1259426
α-helix1281-129515
β-strand1297-1299325
β-strand1309-1313523
β-strand1321-1322227
β-strand1328-1329227
β-strand1333-1338623
α-helix1343-13464
β-strand1352124
β-strand1358123
α-helix1362-138625
α-helix1395-140511
β-strand1408128
α-helix1416-14194
α-helix1426-14294
α-helix1430-14345
α-helix1436-144510
β-strand1448-144922
α-helix1454-14607
α-helix1463-14642
α-helix1467-14693
β-strand1471-1475529
α-helix1477-14837
Chain B: 53 helices, 75 β-strands
ElementResiduesLengthSheet
α-helix23-3614
α-helix41-499
α-helix50-545
α-helix55-617
β-strand65-68430
β-strand83-931130
β-strand97-99331
β-strand105-107331
α-helix110-1156
β-strand120132
β-strand121-1311130
β-strand142-1531230
α-helix1541
β-strand155132
α-helix162-1643
α-helix168-1736
β-strand185-187332
β-strand190-194532
α-helix1951
β-strand196-200533
α-helix2011
β-strand205-209534
β-strand215-222834
β-strand234-240734
β-strand257-259334
β-strand267-268234
α-helix269-2768
α-helix281-2888
α-helix295-30814
α-helix314-32512
α-helix3271
α-helix333-34513
α-helix349-3513
α-helix355-3573
α-helix358-37720
α-helix381-3844
α-helix388-3903
β-strand391-394433
α-helix396-42530
α-helix431-4344
α-helix438-45013
β-strand467-469332
α-helix475-4828
β-strand485-486233
α-helix503-5053
β-strand509135
β-strand523-524233
β-strand526135
β-strand531-532236
α-helix539-5479
α-helix5501
β-strand551-552237
α-helix553-5553
α-helix558-5603
β-strand565-569537
β-strand572-577637
α-helix580-59213
α-helix598-6003
β-strand602-606537
β-strand611-615537
β-strand621-627736
β-strand628-629238
β-strand632-633238
α-helix637-6459
α-helix653-6586
β-strand662-666536
β-strand675-676236
α-helix679-6846
β-strand695-696236
α-helix700-7034
α-helix707-7093
α-helix714-7163
α-helix719-72911
β-strand732139
α-helix738-7425
β-strand747-751540
β-strand755141
β-strand759-760242
α-helix762-7676
β-strand776-782743
β-strand783116
β-strand793-797543
α-helix798-8025
β-strand808-8171040
β-strand826-829444
β-strand838144
β-strand841145
β-strand844146
β-strand853147
β-strand859-861340
β-strand864146
β-strand865-867347
β-strand869-872444
β-strand889-891344
β-strand894-895247
β-strand901-9111140
β-strand917-9271140
β-strand934-937443
β-strand942-949843
β-strand956148
β-strand965-967343
α-helix969-9713
α-helix979-99315
β-strand997-998242
α-helix1007-101812
β-strand1025-1026243
β-strand1029148
α-helix10351
β-strand1036148
α-helix10371
β-strand1041-10501043
β-strand1051139
α-helix1055-10584
β-strand1060-106239
β-strand1067-1068249
β-strand1073-1074249
α-helix1078-10803
β-strand108518
α-helix1088-109710
α-helix1100-11045
α-helix1105-11095
β-strand1115-111951
β-strand1127150
β-strand1137150
β-strand1142150
β-strand1146-115051
α-helix1153-116412
β-strand1170-117232
Chain C: 7 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand9-14651
β-strand18-23651
α-helix28-4013
β-strand43-551352
α-helix61-7010
β-strand73153
α-helix82-843
β-strand98-106952
α-helix1121
β-strand113-115354
β-strand121-122252
β-strand130153
β-strand151-153354
β-strand158-1691252
α-helix174-1763
β-strand179-186851
α-helix200-2023
β-strand229-235751
α-helix241-26828
Chain D: 11 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand16155
α-helix17-193
β-strand21155
α-helix24-274
α-helix291
β-strand30-31229
α-helix34-5118
α-helix55-584
α-helix59-7012
α-helix77-8812
α-helix94-10310
α-helix108-1147
α-helix116-1183
α-helix124-13714
Chain E: 13 helices, 10 β-strands
ElementResiduesLengthSheet
α-helix2-2423
α-helix30-345
α-helix37-437
α-helix54-585
β-strand60-62356
β-strand72-75456
β-strand81-82257
α-helix84-9714
β-strand101-106656
β-strand109-110257
α-helix112-12110
β-strand126-131656
α-helix132-1354
α-helix139-1413
α-helix1461
β-strand147-150428
α-helix153-16311
α-helix167-1693
β-strand172-173228
α-helix178-1836
α-helix185-1862
β-strand190-197828
β-strand201-209928
Chain F: 4 helices, 4 β-strands
ElementResiduesLengthSheet
β-strand56158
α-helix59-7416
α-helix89-9911
β-strand104-109629
β-strand115-119529
α-helix120-1223
β-strand124158
α-helix1251
Chain G: 3 helices, 14 β-strands
ElementResiduesLengthSheet
β-strand2-131229
α-helix15-173
α-helix22-3413
β-strand38-39229
β-strand43-541229
β-strand58-59229
β-strand66-771229
β-strand84-931059
β-strand96-101659
β-strand104-109659
α-helix110-1123
β-strand118-120360
β-strand127-129360
β-strand137160
β-strand142-1531259
β-strand156-162759
β-strand169-170259
Chain H: 2 helices, 8 β-strands
ElementResiduesLengthSheet
α-helix2-32
β-strand4-141114
β-strand26-32714
β-strand38-43614
β-strand55-61714
β-strand90-1001114
β-strand112-118714
β-strand121-127714
α-helix131-1333
β-strand141-146614

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 RPB1Aprotein1970Homo sapiensP24928 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB2Bprotein1174Homo sapiensP30876 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB3Cprotein275Homo sapiensP19387 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB4Dprotein142Homo sapiensO15514 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB5Eprotein210Homo sapiensP19388
DNA-directed RNA polymerase II subunit RPB6Fprotein127Homo sapiensP61218
DNA-directed RNA polymerase II subunit RPB7Gprotein172Homo sapiensP62487
DNA-directed RNA polymerase II subunit RPB8Hprotein150Homo sapiensP52434
DNA-directed RNA polymerase II subunit RPB9Iprotein125Homo sapiensP36954
DNA-directed RNA polymerase II subunit RPB10Jprotein67Homo sapiensP62875
DNA-directed RNA polymerase II subunit RPB11-aKprotein117Homo sapiensP52435
DNA-directed RNA polymerase II subunit RPB12Lprotein58Homo sapiensP53803

11 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>5IYC_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
SPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPASPKYTPTSPSYSPSSPEYTPTSPKY
SPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTSPKYSPTSPTYSPTS
PKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDSDEEN
Sequence of entity 2 (B), FASTA
>5IYC_2 DNA-directed RNA polymerase II subunit RPB2 (chains B)
MYDADEDMQYDEDDDEITPDLWQEACWIVISSYFDEKGLVRQQLDSFDEFIQMSVQRIVE
DAPPIDLQAEAQHASGEVEEPPRYLLKFEQIYLSKPTHWERDGAPSPMMPNEARLRNLTY
SAPLYVDITKTVIKEGEEQLQTQHQKTFIGKIPIMLRSTYCLLNGLTDRDLCELNECPLD
PGGYFIINGSEKVLIAQEKMATNTVYVFAKKDSKYAYTGECRSCLENSSRPTSTIWVSML
ARGGQGAKKSAIGQRIVATLPYIKQEVPIIIVFRALGFVSDRDILEHIIYDFEDPEMMEM
VKPSLDEAFVIQEQNVALNFIGSRGAKPGVTKEKRIKYAKEVLQKEMLPHVGVSDFCETK
KAYFLGYMVHRLLLAALGRRELDDRDHYGNKRLDLAGPLLAFLFRGMFKNLLKEVRIYAQ
KFIDRGKDFNLELAIKTRIISDGLKYSLATGNWGDQKKAHQARAGVSQVLNRLTFASTLS
HLRRLNSPIGRDGKLAKPRQLHNTLWGMVCPAETPEGHAVGLVKNLALMAYISVGSQPSP
ILEFLEEWSMENLEEISPAAIADATKIFVNGCWVGIHKDPEQLMNTLRKLRRQMDIIVSE
VSMIRDIREREIRIYTDAGRICRPLLIVEKQKLLLKKRHIDQLKEREYNNYSWQDLVASG
VVEYIDTLEEETVMLAMTPDDLQEKEVAYCSTYTHCEIHPSMILGVCASIIPFPDHNQSP
RNTYQSAMGKQAMGVYITNFHVRMDTLAHVLYYPQKPLVTTRSMEYLRFRELPAGINSIV
AIASYTGYNQEDSVIMNRSAVDRGFFRSVFYRSYKEQESKKGFDQEEVFEKPTRETCQGM
RHAIYDKLDDDGLIAPGVRVSGDDVIIGKTVTLPENEDELESTNRRYTKRDCSTFLRTSE
TGIVDQVMVTLNQEGYKFCKIRVRSVRIPQIGDKFASRHGQKGTCGIQYRQEDMPFTCEG
ITPDIIINPHAIPSRMTIGHLIECLQGKVSANKGEIGDATPFNDAVNVQKISNLLSDYGY
HLRGNEVLYNGFTGRKITSQIFIGPTYYQRLKHMVDDKIHSRARGPIQILNRQPMEGRSR
DGGLRFGEMERDCQIAHGAAQFLRERLFEASDPYQVHVCNLCGIMAIANTRTHTYECRGC
RNKTQISLVRMPYACKLLFQELMSMSIAPRMMSV
Sequence of entity 3 (C), FASTA
>5IYC_3 DNA-directed RNA polymerase II subunit RPB3 (chains C)
MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLH
DEFIAHRLGLIPLISDDIVDKLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDL
ISNSPRVIPVTSRNRDNDPNDYVEQDDILIVKLRKGQELRLRAYAKKGFGKEHAKWNPTA
GVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLR
PETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN
Sequence of entity 4 (D), FASTA
>5IYC_4 DNA-directed RNA polymerase II subunit RPB4 (chains D)
MAAGGSDPRAGDVEEDASQLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEV
FMKTLNYTARFSRFKNRETIASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEG
RFEDEELQQILDDIQTKRSFQY
Sequence of entity 5 (E), FASTA
>5IYC_5 DNA-directed RNA polymerase II subunit RPB5 (chains E)
MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQSGDKPSEGRPRRTDLTV
LVAHNDDPTDQMFVFFPEEPKVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVD
MAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELLARYKLRENQLPRIQAGDPVA
RYFGIKRGQVVKIIRPSETAGRYITYRLVQ
Sequence of entity 6 (F), FASTA
>5IYC_6 DNA-directed RNA polymerase II subunit RPB6 (chains F)
MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKY
ERARVLGTRALQIAMCAPVMVELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGV
DELIITD
Sequence of entity 7 (G), FASTA
>5IYC_7 DNA-directed RNA polymerase II subunit RPB7 (chains G)
MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQ
PGRGFVLYPVKYKAIVFRPFKGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFD
PNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAIGSLMDDYLGLVS
Sequence of entity 8 (H), FASTA
>5IYC_8 DNA-directed RNA polymerase II subunit RPB8 (chains H)
MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVI
ASTLYEDGTLDDGEYNPTDDRPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGG
LLMRLQGDANNLHGFEVDSRVYLLMKKLAF
Sequence of entity 9 (I), FASTA
>5IYC_9 DNA-directed RNA polymerase II subunit RPB9 (chains I)
MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITH
EVDELTQIIADVSQDPTLPRTEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCG
HRWTE
Sequence of entity 10 (J), FASTA
>5IYC_10 DNA-directed RNA polymerase II subunit RPB10 (chains J)
MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLL
NYAPLEK
Sequence of entity 11 (K), FASTA
>5IYC_11 DNA-directed RNA polymerase II subunit RPB11-a (chains K)
MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAG
YKVPHPLEHKIIIRVQTTPDYSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE
Sequence of entity 12 (L), FASTA
>5IYC_12 DNA-directed RNA polymerase II subunit RPB12 (chains L)
MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn11
MGMagnesium ionMg2

Primary citation

Near-atomic resolution visualization of human transcription promoter opening. He, Y., Yan, C., Fang, J. et al. Nature (2016) 533:359-365. DOI 10.1038/nature17970 · PubMed

Other PDB entries of the same protein (UniProt P24928 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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