8RAM: DNA-directed RNA polymerase II subunit RPB1

Structure of Sen1 bound RNA Polymerase II pre-termination complex. Determined by electron microscopy at 2.8 Å resolution. Released 30 Oct 2024.

Method
Electron microscopy
Resolution
2.8 Å
Organisms
Saccharomyces cerevisiae, Human immunodeficiency virus 2
Chains
19
Atoms
42,965
Mol. weight
957.84 kDa
Ligands
MG, ZN
Released
30 Oct 2024

Explore 8RAM in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8RAM contains 251 α-helices and 294 β-strands across 16 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: 82 helices, 71 β-strands

ElementResiduesLengthSheet
α-helix101
β-strand1111
β-strand16-2162
α-helix24-307
β-strand33-3423
β-strand3714
α-helix43-453
α-helix48-492
β-strand5214
β-strand82-8323
β-strand9015
α-helix96-10510
β-strand10616
β-strand11316
α-helix120-1267
α-helix131-14414
β-strand14717
β-strand151-15338
β-strand161-16338
β-strand17017
β-strand173-17429
β-strand182-18439
β-strand199-20139
α-helix202-2032
α-helix204-21310
α-helix216-2227
α-helix231-2344
β-strand23615
β-strand24113
α-helix244-2463
β-strand250110
β-strand258110
α-helix261-28121
α-helix288-30417
α-helix312-3143
β-strand315111
α-helix3161
β-strand321111
α-helix322-3232
α-helix325-3284
α-helix3351
α-helix336-3405
β-strand344-345212
β-strand348-355813
β-strand363-367513
α-helix368-3736
β-strand375-379514
α-helix3801
α-helix385-39410
β-strand402-406514
β-strand412-414314
α-helix421-4233
α-helix424-4263
β-strand431-435514
α-helix4361
β-strand441-446613
α-helix452-4543
β-strand455-463913
β-strand468-470313
α-helix475-4784
β-strand486-490513
α-helix495-5039
β-strand506113
α-helix507-5104
β-strand512-513215
β-strand518-519215
α-helix525-53410
β-strand540-541216
α-helix543-55210
α-helix559-5635
β-strand565117
β-strand571117
β-strand572-573216
α-helix574-5796
α-helix5831
β-strand588-590318
β-strand605-608418
β-strand611-615518
α-helix619-6224
α-helix629-6368
α-helix639-66022
β-strand663119
α-helix666-6694
α-helix673-69826
α-helix703-7053
α-helix710-73627
α-helix742-7498
α-helix755-7584
α-helix759-7635
β-strand766-767220
β-strand770121
β-strand773121
α-helix775-7762
α-helix794-7963
β-strand799-800220
α-helix810-84536
β-strand849-850222
β-strand856-857222
β-strand863-865322
α-helix868-8703
β-strand873123
β-strand879-882424
α-helix890-8978
α-helix907-9093
α-helix910-9123
β-strand913125
α-helix916-9194
α-helix923-94624
β-strand953-956424
α-helix960-97112
α-helix9781
β-strand979125
α-helix983-99614
α-helix1005-101410
α-helix1016-102510
α-helix1028-10292
α-helix1030-10345
α-helix1039-105618
β-strand1057123
α-helix1058-10592
α-helix1064-107815
α-helix1098-11058
β-strand1116-1119426
β-strand1120127
α-helix1128-113811
β-strand1141-1142228
α-helix1143-11464
β-strand1147-1151529
α-helix1164-11663
α-helix1167-11748
β-strand1193-1197529
α-helix1199-12057
α-helix1209-121911
β-strand1224-1228529
β-strand1237-1242629
α-helix1260-126910
β-strand1272-1274328
β-strand1282-12921126
β-strand1298-13081126
α-helix1313-13164
β-strand1322127
β-strand1328-1329226
α-helix1332-13387
α-helix1341-135818
α-helix1365-137612
α-helix1389-13913
α-helix1396-14005
α-helix1406-141510
β-strand1418-141922
α-helix1424-14307
α-helix1437-14393
β-strand1442-1445430
α-helix1447-14537
Chain B: 49 helices, 74 β-strands
ElementResiduesLengthSheet
α-helix27-4014
α-helix45-539
α-helix54-585
α-helix59-657
β-strand91-97731
β-strand101-102232
β-strand110-111232
α-helix114-1207
β-strand125-133931
β-strand165-171731
α-helix180-1834
α-helix186-1916
β-strand203-205333
β-strand208-212533
α-helix2131
β-strand214-218534
β-strand223-227535
β-strand234-242935
β-strand252-259835
β-strand268-272535
β-strand280-281235
α-helix282-2898
α-helix294-3018
α-helix308-32114
α-helix327-33610
β-strand343136
β-strand346136
α-helix349-35810
α-helix372-39019
α-helix394-3963
α-helix401-4033
β-strand404-407434
α-helix409-43426
α-helix451-46313
β-strand480-482333
α-helix483-4842
α-helix488-4958
β-strand497-499334
α-helix509-5124
α-helix514-5152
α-helix516-5183
β-strand522137
β-strand537-538234
β-strand539137
β-strand544-545238
α-helix552-56110
β-strand564-565239
α-helix566-5683
α-helix571-5733
β-strand578-582539
β-strand585-590639
α-helix593-60614
β-strand614-618539
β-strand623-627539
β-strand633-639738
β-strand640-641240
β-strand650-651240
α-helix655-66713
α-helix681-6877
β-strand690-694538
α-helix697-7004
β-strand703-704238
α-helix728-7292
β-strand740-741238
α-helix745-7484
α-helix751-7555
β-strand762141
α-helix764-77411
β-strand777142
β-strand792-796543
β-strand800144
β-strand804-805245
α-helix807-8126
β-strand821-827746
β-strand828119
β-strand839-842446
α-helix843-8486
β-strand853-8621043
β-strand873-874247
β-strand898148
α-helix899-9002
β-strand904-905243
β-strand910-912348
β-strand914-917447
β-strand934-936347
β-strand939-940248
α-helix941-9422
β-strand947-9561043
β-strand962-9721143
β-strand979-982446
β-strand987-994846
β-strand1001-1002249
β-strand1010-1012346
α-helix1016-10205
β-strand1022141
α-helix1023-103816
α-helix10411
β-strand1042-1043245
α-helix1052-106110
β-strand1069-1070246
β-strand1072-1073249
α-helix10791
β-strand1080149
α-helix10811
β-strand1083150
β-strand1085-10941046
β-strand1095142
α-helix1099-11013
β-strand1104-1106313
β-strand1111151
β-strand1118151
α-helix11191
β-strand1128-1129212
α-helix1132-114110
α-helix1144-11529
β-strand1158-116361
β-strand1172-1174352
β-strand1179-1181352
β-strand1182153
β-strand1187153
β-strand1191-119661
α-helix1198-120912
β-strand1212-121762
Chain C: 12 helices, 13 β-strands
ElementResiduesLengthSheet
β-strand7-13754
β-strand17-23754
α-helix27-359
α-helix36-405
β-strand42-541355
α-helix60-689
β-strand72-74356
β-strand96-104955
α-helix1101
β-strand111-113357
α-helix115-1173
β-strand119-120255
β-strand129-132456
α-helix1331
β-strand145-147357
β-strand152-1631255
α-helix168-1703
β-strand173-179754
β-strand190150
α-helix197-2004
α-helix202-2043
α-helix205-2095
α-helix211-2133
β-strand228-234754
α-helix240-26627
Chain D: 8 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand36-38358
β-strand44-46358
β-strand49159
α-helix52-7524
α-helix122-13211
α-helix140-15011
α-helix157-17014
α-helix174-1829
α-helix188-1947
α-helix196-1983
α-helix204-21714
Chain E: 13 helices, 10 β-strands
ElementResiduesLengthSheet
α-helix3-2624
β-strand28160
α-helix32-354
α-helix39-457
α-helix55-584
β-strand60-62361
β-strand64160
α-helix66-716
β-strand78-82561
α-helix90-10314
β-strand107-112661
α-helix118-1236
α-helix124-1263
β-strand131-136661
α-helix139-1413
β-strand152-155462
α-helix158-16811
α-helix1761
β-strand177-178262
α-helix183-1886
α-helix190-1912
β-strand195-200662
β-strand208-214762
Chain F: 4 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix74-752
β-strand84163
α-helix85-862
α-helix87-10216
α-helix117-12711
β-strand132-137630
β-strand143-147530
β-strand152163
Chain G: 4 helices, 15 β-strands
ElementResiduesLengthSheet
β-strand3-131159
α-helix22-3413
β-strand38-39259
β-strand43-48659
β-strand55-56259
α-helix57-593
β-strand60-61259
α-helix621
β-strand68-791259
β-strand86-951064
β-strand98-103664
β-strand106-110564
α-helix112-1143
β-strand120-122365
β-strand129-131365
β-strand136-137265
β-strand142-1521164
β-strand157-162664
β-strand169-170264
Chain H: 1 helix, 9 β-strands
ElementResiduesLengthSheet
β-strand4-161317
β-strand24-30717
β-strand37-42617
β-strand54-60717
β-strand95-98417
β-strand100-107817
β-strand111-118817
β-strand121-127717
α-helix129-1335
β-strand141-145517

8 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 RPB1Aprotein1733Saccharomyces cerevisiaeP04050 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB2Bprotein1224Saccharomyces cerevisiaeP08518 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB3Cprotein318Saccharomyces cerevisiaeP16370 (AlphaFold model)
DNA-directed RNA polymerase II subunit RPB4Dprotein221Saccharomyces cerevisiaeP20433 (AlphaFold model)
DNA-directed RNA polymerases I, II, and III subunit RPABC1Eprotein215Saccharomyces cerevisiaeP20434
DNA-directed RNA polymerases I, II, and III subunit RPABC2Fprotein155Saccharomyces cerevisiaeP20435
DNA-directed RNA polymerase II subunit RPB7Gprotein171Saccharomyces cerevisiaeP34087
DNA-directed RNA polymerases I, II, and III subunit RPABC3Hprotein146Saccharomyces cerevisiaeP20436
DNA-directed RNA polymerase II subunit RPB9Iprotein122Saccharomyces cerevisiaeP27999
DNA-directed RNA polymerases I, II, and III subunit RPABC5Jprotein70Saccharomyces cerevisiaeP22139
DNA-directed RNA polymerase II subunit RPB11Kprotein120Saccharomyces cerevisiaeP38902
DNA-directed RNA polymerases I, II, and III subunit RPABC4Lprotein70Saccharomyces cerevisiaeP40422

7 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>8RAM_1 DNA-directed RNA polymerase II subunit RPB1 (chains A)
MVGQQYSSAPLRTVKEVQFGLFSPEEVRAISVAKIRFPETMDETQTRAKIGGLNDPRLGS
IDRNLKCQTCQEGMNECPGHFGHIDLAKPVFHVGFIAKIKKVCECVCMHCGKLLLDEHNE
LMRQALAIKDSKKRFAAIWTLCKTKMVCETDVPSEDDPTQLVSRGGCGNTQPTIRKDGLK
LVGSWKKDRATGDADEPELRVLSTEEILNIFKHISVKDFTSLGFNEVFSRPEWMILTCLP
VPPPPVRPSISFNESQRGEDDLTFKLADILKANISLETLEHNGAPHHAIEEAESLLQFHV
ATYMDNDIAGQPQALQKSGRPVKSIRARLKGKEGRIRGNLMGKRVDFSARTVISGDPNLE
LDQVGVPKSIAKTLTYPEVVTPYNIDRLTQLVRNGPNEHPGAKYVIRDSGDRIDLRYSKR
AGDIQLQYGWKVERHIMDNDPVLFNRQPSLHKMSMMAHRVKVIPYSTFRLNLSVTSPYNA
DFDGDEMNLHVPQSEETRAELSQLCAVPLQIVSPQSNKPCMGIVQDTLCGIRKLTLRDTF
IELDQVLNMLYWVPDWDGVIPTPAIIKPKPLWSGKQILSVAIPNGIHLQRFDEGTTLLSP
KDNGMLIIDGQIIFGVVEKKTVGSSNGGLIHVVTREKGPQVCAKLFGNIQKVVNFWLLHN
GFSTGIGDTIADGPTMREITETIAEAKKKVLDVTKEAQANLLTAKHGMTLRESFEDNVVR
FLNEARDKAGRLAEVNLKDLNNVKQMVMAGSKGSFINIAQMSACVGQQSVEGKRIAFGFV
DRTLPHFSKDDYSPESKGFVENSYLRGLTPQEFFFHAMGGREGLIDTAVKTAETGYIQRR
LVKALEDIMVHYDNTTRNSLGNVIQFIYGEDGMDAAHIEKQSLDTIGGSDAAFEKRYRVD
LLNTDHTLDPSLLESGSEILGDLKLQVLLDEEYKQLVKDRKFLREVFVDGEANWPLPVNI
RRIIQNAQQTFHIDHTKPSDLTIKDIVLGVKDLQENLLVLRGKNEIIQNAQRDAVTLFCC
LLRSRLATRRVLQEYRLTKQAFDWVLSNIEAQFLRSVVHPGEMVGVLAAQSIGEPATQMT
LNTFHFAGVASKKVTSGVPRLKEILNVAKNMKTPSLTVYLEPGHAADQEQAKLIRSAIEH
TTLKSVTIASEIYYDPDPRSTVIPEDEEIIQLHFSLLDEEAEQSFDQQSPWLLRLELDRA
AMNDKDLTMGQVGERIKQTFKNDLFVIWSEDNDEKLIIRCRVVRPKSLDAETEAEEDHML
KKIENTMLENITLRGVENIERVVMMKYDRKVPSPTGEYVKEPEWVLETDGVNLSEVMTVP
GIDPTRIYTNSFIDIMEVLGIEAGRAALYKEVYNVIASDGSYVNYRHMALLVDVMTTQGG
LTSVTRHGFNRSNTGALMRCSFEETVEILFEAGASAELDDCRGVSENVILGQMAPIGTGA
FDVMIDEESLVKYMPEQKITEIEDGQDGGVTPYSNESGLVNADLDVKDELMFSPLVDSGS
NDAMAGGFTAYGGADYGEATSPFGAYGEAPTSPGFGVSSPGFSPTSPTYSPTSPAYSPTS
PSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYS
PTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPAYSPTSPSYSPTSPSYSPTSP
SYSPTSPSYSPTSPNYSPTSPSYSPTSPGYSPGSPAYSPKQDEQKHNENENSR
Sequence of entity 2 (B), FASTA
>8RAM_2 DNA-directed RNA polymerase II subunit RPB2 (chains B)
MSDLANSEKYYDEDPYGFEDESAPITAEDSWAVISAFFREKGLVSQQLDSFNQFVDYTLQ
DIICEDSTLILEQLAQHTTESDNISRKYEISFGKIYVTKPMVNESDGVTHALYPQEARLR
NLTYSSGLFVDVKKRTYEAIDVPGRELKYELIAEESEDDSESGKVFIGRLPIMLRSKNCY
LSEATESDLYKLKECPFDMGGYFIINGSEKVLIAQERSAGNIVQVFKKAAPSPISHVAEI
RSALEKGSRFISTLQVKLYGREGSSARTIKATLPYIKQDIPIVIIFRALGIIPDGEILEH
ICYDVNDWQMLEMLKPCVEDGFVIQDRETALDFIGRRGTALGIKKEKRIQYAKDILQKEF
LPHITQLEGFESRKAFFLGYMINRLLLCALDRKDQDDRDHFGKKRLDLAGPLLAQLFKTL
FKKLTKDIFRYMQRTVEEAHDFNMKLAINAKTITSGLKYALATGNWGEQKKAMSSRAGVS
QVLNRYTYSSTLSHLRRTNTPIGRDGKLAKPRQLHNTHWGLVCPAETPEGQACGLVKNLS
LMSCISVGTDPMPIITFLSEWGMEPLEDYVPHQSPDATRVFVNGVWHGVHRNPARLMETL
RTLRRKGDINPEVSMIRDIREKELKIFTDAGRVYRPLFIVEDDESLGHKELKVRKGHIAK
LMATEYQDIEGGFEDVEEYTWSSLLNEGLVEYIDAEEEESILIAMQPEDLEPAEANEEND
LDVDPAKRIRVSHHATTFTHCEIHPSMILGVAASIIPFPDHNQSPRNTYQSAMGKQAMGV
FLTNYNVRMDTMANILYYPQKPLGTTRAMEYLKFRELPAGQNAIVAIACYSGYNQEDSMI
MNQSSIDRGLFRSLFFRSYMDQEKKYGMSITETFEKPQRTNTLRMKHGTYDKLDDDGLIA
PGVRVSGEDVIIGKTTPISPDEEELGQRTAYHSKRDASTPLRSTENGIVDQVLVTTNQDG
LKFVKVRVRTTKIPQIGDKFASRHGQKGTIGITYRREDMPFTAEGIVPDLIINPHAIPSR
MTVAHLIECLLSKVAALSGNEGDASPFTDITVEGISKLLREHGYQSRGFEVMYNGHTGKK
LMAQIFFGPTYYQRLRHMVDDKIHARARGPMQVLTRQPVEGRSRDGGLRFGEMERDCMIA
HGAASFLKERLMEASDAFRVHICGICGLMTVIAKLNHNQFECKGCDNKIDIYQIHIPYAA
KLLFQELMAMNITPRLYTDRSRDF
Sequence of entity 3 (C), FASTA
>8RAM_3 DNA-directed RNA polymerase II subunit RPB3 (chains C)
MSEEGPQVKIREASKDNVDFILSNVDLAMANSLRRVMIAEIPTLAIDSVEVETNTTVLAD
EFIAHRLGLIPLQSMDIEQLEYSRDCFCEDHCDKCSVVLTLQAFGESESTTNVYSKDLVI
VSNLMGRNIGHPIIQDKEGNGVLICKLRKGQELKLTCVAKKGIAKEHAKWGPAAAIEFEY
DPWNKLKHTDYWYEQDSAKEWPQSKNCEYEDPPNEGDPFDYKAQADTFYMNVESVGSIPV
DQVVVRGIDTLQKKVASILLALTQMDQDKVNFASGDNNTASNMLGSNEDVMMTGAEQDPY
SNASQMGNTGSGGYDNAW
Sequence of entity 4 (D), FASTA
>8RAM_4 DNA-directed RNA polymerase II subunit RPB4 (chains D)
MNVSTSTFQTRRRRLKKVEEEENAATLQLGQEFQLKQINHQGEEEELIALNLSEARLVIK
EALVERRRAFKRSQKKHKKKHLKHENANDETTAVEDEDDDLDEDDVNADDDDFMHSETRE
KELESIDVLLEQTTGGNNKDLKNTMQYLTNFSRFRDQETVGAVIQLLKSTGLHPFEVAQL
GSLACDTADEAKTLIPSLNNKISDDELERILKELSNLETLY
Sequence of entity 5 (E), FASTA
>8RAM_5 DNA-directed RNA polymerases I, II, and III subunit RPABC1 (chains E)
MDQENERNISRLWRAFRTVKEMVKDRGYFITQEEVELPLEDFKAKYCDSMGRPQRKMMSF
QANPTEESISKFPDMGSLWVEFCDEPSVGVKTMKTFVIHIQEKNFQTGIFVYQNNITPSA
MKLVPSIPPATIETFNEAALVVNITHHELVPKHIRLSSDEKRELLKRYRLKESQLPRIQR
ADPVALYLGLKRGEVVKIIRKSETSGRYASYRICM
Sequence of entity 6 (F), FASTA
>8RAM_6 DNA-directed RNA polymerases I, II, and III subunit RPABC2 (chains F)
MSDYEEAFNDGNENFEDFDVEHFSDEETYEEKPQFKDGETTDANGKTIVTGGNGPEDFQQ
HEQIRRKTLKEKAIPKDQRATTPYMTKYERARILGTRALQISMNAPVFVDLEGETDPLRI
AMKELAEKKIPLVIRRYLPDGSFEDWSVEELIVDL
Sequence of entity 7 (G), FASTA
>8RAM_7 DNA-directed RNA polymerase II subunit RPB7 (chains G)
MFFIKDLSLNITLHPSFFGPRMKQYLKTKLLEEVEGSCTGKFGYILCVLDYDNIDIQRGR
ILPTDGSAEFNVKYRAVVFKPFKGEVVDGTVVSCSQHGFEVQVGPMKVFVTKHLMPQDLT
FNAGSNPPSYQSSEDVITIKSRIRVKIEGCISQVSSIHAIGSIKEDYLGAI
Sequence of entity 8 (H), FASTA
>8RAM_8 DNA-directed RNA polymerases I, II, and III subunit RPABC3 (chains H)
MSNTLFDDIFQVSEVDPGRYNKVCRIEAASTTQDQCKLTLDINVELFPVAAQDSLTVTIA
SSLNLEDTPANDSSATRSWRPPQAGDRSLADDYDYVMYGTAYKFEEVSKDLIAVYYSFGG
LLMRLEGNYRNLNNLKQENAYLLIRR
Sequence of entity 9 (I), FASTA
>8RAM_9 DNA-directed RNA polymerase II subunit RPB9 (chains I)
MTTFRFCRDCNNMLYPREDKENNRLLFECRTCSYVEEAGSPLVYRHELITNIGETAGVVQ
DIGSDPTLPRSDRECPKCHSRENVFFQSQQRRKDTSMVLFFVCLSCSHIFTSDQKNKRTQ
FS
Sequence of entity 10 (J), FASTA
>8RAM_10 DNA-directed RNA polymerases I, II, and III subunit RPABC5 (chains J)
MIVPVRCFSCGKVVGDKWESYLNLLQEDELDEGTALSRLGLKRYCCRRMILTHVDLIEKF
LRYNPLEKRD
Sequence of entity 11 (K), FASTA
>8RAM_11 DNA-directed RNA polymerase II subunit RPB11 (chains K)
MNAPDRFELFLLGEGESKLKIDPDTKAPNAVVITFEKEDHTLGNLIRAELLNDRKVLFAA
YKVEHPFFARFKLRIQTTEGYDPKDALKNACNSIINKLGALKTNFETEWNLQTLAADDAF
Sequence of entity 12 (L), FASTA
>8RAM_12 DNA-directed RNA polymerases I, II, and III subunit RPABC4 (chains L)
MSREGFQIPTNLDAAAAGTSQARTATLKYICAECSSKLSLSRTDAVRCKDCGHRILLKAR
TKRLVQFEAR

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg1
ZNZinc ionZn9

Primary citation

Mechanism of polyadenylation-independent RNA polymerase II termination. Rengachari, S., Hainthaler, T., Oberthuer, C. et al. Nat Struct Mol Biol (2025) 32:339-345. DOI 10.1038/s41594-024-01409-0 · PubMed

Other PDB entries of the same protein (UniProt P04050 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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