4BBR: RNA polymerase II-TFIIB complex

Structure of RNA polymerase II-TFIIB complex. Determined by X-ray diffraction at 3.4 Å resolution. Released 14 Nov 2012.

Method
X-ray diffraction
Resolution
3.4 Å
Organism
SACCHAROMYCES CEREVISIAE
Chains
13
Atoms
32,800
Mol. weight
553.05 kDa
Ligands
ZN, MG
Released
14 Nov 2012

Explore 4BBR in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4BBR contains 187 α-helices and 244 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, 73 β-strands

ElementResiduesLengthSheet
β-strand1111
β-strand16-1832
β-strand2113
α-helix24-307
β-strand82-91104
α-helix93-953
α-helix96-10510
β-strand10615
α-helix1071
β-strand11315
α-helix120-1256
α-helix131-14212
β-strand14716
β-strand151-15337
β-strand161-16337
α-helix1691
β-strand17016
α-helix171-1722
β-strand175-17738
β-strand180-18568
β-strand198-20258
α-helix2031
α-helix204-2129
α-helix216-2216
β-strand22519
β-strand22919
α-helix231-2344
β-strand235-24174
α-helix244-2463
β-strand250-251210
β-strand257-260410
α-helix261-28121
α-helix287-30418
α-helix3121
β-strand313-316411
β-strand320-321211
α-helix3221
α-helix325-3306
β-strand332112
β-strand334112
α-helix337-3415
β-strand343-345313
β-strand348-355814
β-strand363-367514
α-helix368-3714
β-strand375-379515
α-helix385-39410
β-strand402-406515
β-strand412-414315
β-strand428116
β-strand430116
β-strand431-435515
α-helix4361
β-strand441-445514
α-helix452-4543
β-strand455-463914
β-strand468-470314
α-helix472-4743
α-helix475-4784
β-strand486-490514
α-helix495-5006
α-helix501-5055
β-strand506114
α-helix507-5104
β-strand512-513217
β-strand518-519217
α-helix525-53511
β-strand540-542318
α-helix543-55210
α-helix559-5635
β-strand565-567318
β-strand571-573318
α-helix574-5785
α-helix5831
β-strand588-589219
β-strand606-607219
β-strand612-614319
α-helix619-6224
α-helix630-6378
α-helix639-66022
α-helix666-6694
α-helix673-69826
α-helix702-7054
α-helix710-73627
α-helix742-7498
α-helix755-7584
α-helix759-7635
β-strand766-767220
β-strand769-770221
β-strand773-774221
β-strand799-800220
α-helix810-84536
β-strand849-850222
β-strand856-857222
β-strand863-865322
β-strand873123
α-helix875-8773
β-strand878-882524
α-helix890-8978
β-strand913125
α-helix916-9194
α-helix923-94624
β-strand953-957524
α-helix960-97112
β-strand979125
α-helix983-99614
α-helix1005-102521
α-helix1028-10303
α-helix1031-10355
α-helix1039-105618
β-strand1057123
α-helix1064-107714
α-helix1098-11069
β-strand1116-1119426
β-strand1120127
α-helix1123-11253
α-helix1128-113811
β-strand1141-1142228
α-helix1144-11463
β-strand1147-1154829
α-helix1167-11726
β-strand1191-1197729
α-helix1199-12046
α-helix1209-122012
α-helix1221-12233
β-strand1226-1228329
β-strand1237-1240429
α-helix1257-127014
β-strand1272-1274328
β-strand1281-1287726
β-strand1290-1292330
β-strand1298-1300330
β-strand1303-1309726
α-helix1313-13175
β-strand1322127
β-strand1328-1329226
α-helix1332-13398
α-helix1341-135818
α-helix1365-137612
α-helix1389-13913
α-helix1396-13994
α-helix1400-14045
α-helix1405-141410
β-strand1418-141922
α-helix1424-14296
α-helix1437-14393
β-strand1441-1445531
α-helix1447-14537
Chain B: 53 helices, 86 β-strands
ElementResiduesLengthSheet
α-helix231
β-strand24132
α-helix251
α-helix30-4011
α-helix45-539
α-helix54-585
α-helix59-657
β-strand69-71333
β-strand85-1001633
β-strand101-103334
β-strand106135
β-strand109-111334
α-helix114-1196
β-strand125-1391533
β-strand149-150233
β-strand164-171833
α-helix1721
β-strand173136
α-helix186-1916
β-strand203-205336
β-strand208-211436
α-helix212-2132
β-strand214-218537
α-helix2191
β-strand223-227538
β-strand234-240738
β-strand254-259638
β-strand269-271338
β-strand280-281238
α-helix282-2876
α-helix294-3018
α-helix308-32013
α-helix327-33610
α-helix347-3548
α-helix355-3595
α-helix372-38918
α-helix401-4033
β-strand404-407437
α-helix409-43830
α-helix444-4474
α-helix451-46313
β-strand465139
β-strand477139
β-strand481-482236
α-helix483-4842
α-helix488-4947
β-strand497-499337
α-helix516-5183
β-strand522140
β-strand536-538337
β-strand539140
β-strand544-545241
α-helix552-5598
β-strand564-565242
α-helix566-5683
α-helix5771
β-strand578-582542
β-strand585-590642
α-helix593-60412
β-strand614-618542
β-strand623-627542
β-strand633-639741
β-strand640-641243
β-strand650-651243
β-strand654132
α-helix655-66612
α-helix681-6866
β-strand690-694541
α-helix697-7004
β-strand703-704241
α-helix707-7104
α-helix713-7142
β-strand740-741241
α-helix745-7484
α-helix753-7553
α-helix759-7613
α-helix764-77411
β-strand777144
β-strand779145
β-strand793-796445
β-strand800146
β-strand804-805247
α-helix807-8104
β-strand821-827748
β-strand839-842448
α-helix843-8475
β-strand853-8621045
β-strand865-866249
β-strand870-871249
β-strand873-874250
β-strand882-883250
β-strand886151
β-strand893152
β-strand898153
β-strand899152
α-helix9001
β-strand901154
β-strand903154
β-strand904-906345
β-strand910-912353
β-strand914-917450
β-strand934-936350
β-strand939-940253
α-helix941-9422
β-strand946-9561145
β-strand962-9721145
β-strand979-982448
β-strand987-994848
β-strand1001155
β-strand1010-1012348
α-helix1014-10163
α-helix1023-103816
β-strand1042-1043247
α-helix1052-106110
β-strand1069-1070248
β-strand1073155
α-helix10791
β-strand1080155
α-helix10811
α-helix10841
β-strand1085-10941048
β-strand1095144
α-helix1099-11013
β-strand1104-1106314
β-strand1111156
β-strand1118156
α-helix11191
β-strand1128-1130313
α-helix1132-114110
α-helix1144-11518
β-strand1158-116361
β-strand1174157
β-strand1179157
β-strand1182158
β-strand1187158
β-strand1191-119661
α-helix1198-120912
β-strand121213
β-strand1215-121732
Chain C: 13 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand7-13759
β-strand17-23759
α-helix27-3913
β-strand43-541260
α-helix60-689
β-strand72161
α-helix77-793
α-helix83-853
β-strand96-104960
β-strand111-114462
α-helix115-1173
β-strand119-120260
α-helix1311
β-strand132161
α-helix1331
β-strand143-147562
β-strand152-1621160
α-helix168-1703
β-strand173-180859
α-helix197-2004
α-helix202-2043
α-helix205-2095
α-helix218-2192
β-strand228-234759
α-helix240-26425
Chain D: 8 helices, 4 β-strands
ElementResiduesLengthSheet
β-strand6131
α-helix17-193
β-strand36-38363
β-strand44-46363
β-strand48-49231
α-helix54-7320
α-helix120-13314
α-helix139-15113
α-helix157-16711
α-helix174-1829
α-helix188-1947
α-helix204-21714
Chain E: 12 helices, 14 β-strands
ElementResiduesLengthSheet
α-helix3-53
α-helix6-2520
β-strand28164
α-helix32-354
α-helix39-468
β-strand47165
β-strand53165
α-helix55-584
β-strand60-62366
β-strand64164
α-helix68-714
β-strand78-82566
β-strand87-88267
α-helix90-10213
β-strand107-112666
β-strand115-116267
α-helix120-1234
β-strand131-136666
α-helix144-1463
β-strand152-155468
α-helix156-1572
α-helix158-16710
β-strand177-178268
α-helix183-1886
β-strand195-202868
β-strand206-214968
Chain F: 4 helices, 5 β-strands
ElementResiduesLengthSheet
β-strand73131
β-strand84169
α-helix85-862
α-helix87-10216
α-helix105-1073
α-helix117-12711
β-strand132-137631
β-strand143-147531
β-strand152169
Chain G: 2 helices, 15 β-strands
ElementResiduesLengthSheet
β-strand3-131131
α-helix15-173
α-helix22-3312
β-strand38-39231
β-strand43-49731
β-strand55131
β-strand59-61331
β-strand68-791231
β-strand86-951070
β-strand98-103670
β-strand106-111670
β-strand121-122271
β-strand129-131371
β-strand136-137271
β-strand142-1531270
β-strand156-162770
β-strand169-170270
Chain H: 0 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand4-161318
β-strand23-30818
β-strand37-43718
β-strand54-60718
β-strand95-103918
β-strand112-118718
β-strand121-127718
β-strand140-145618

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 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 rpabc 1Eprotein215SACCHAROMYCES CEREVISIAEP20434
DNA-directed RNA polymerases I, II, and III subunit rpabc 2Fprotein155SACCHAROMYCES CEREVISIAEP20435
DNA-directed RNA polymerase II subunit RPB7Gprotein171SACCHAROMYCES CEREVISIAEP34087
DNA-directed RNA polymerases I, II, and III subunit rpabc 3Hprotein146SACCHAROMYCES CEREVISIAEP20436
DNA-directed RNA polymerase II subunit RPB9Iprotein122SACCHAROMYCES CEREVISIAEP27999
DNA-directed RNA polymerases I, II, and III subunit rpabc 5Jprotein70SACCHAROMYCES CEREVISIAEP22139
DNA-directed RNA polymerase II subunit RPB11Kprotein120SACCHAROMYCES CEREVISIAEP38902
DNA-directed RNA polymerases I, II, and III subunit rpabc 4Lprotein70SACCHAROMYCES CEREVISIAEP40422

1 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>4BBR_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
>4BBR_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
>4BBR_3 DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB3 (chains C)
MSEEGPQVKIREASKDNVDFILSNVDLAMANSLRRVMIAEIPTLAIDSVEVETNTTVLAD
EFIAHRLGLIPLQSMDIEQLEYSRDCFCEDHCDKCSVVLTLQAFGESESTTNVYSKDLVI
VSNLMGRNIGHPIIQDKEGNGVLICKLRKGQELKLTCVAKKGIAKEHAKWGPAAAIEFEY
DPWNKLKHTDYWYEQDSAKEWPQSKNCEYEDPPNEGDPFDYKAQADTFYMNVESVGSIPV
DQVVVRGIDTLQKKVASILLALTQMDQDKVNFASGDNNTASNMLGSNEDVMMTGAEQDPY
SNASQMGNTGSGGYDNAW
Sequence of entity 4 (D), FASTA
>4BBR_4 DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB4 (chains D)
MNVSTSTFQTRRRRLKKVEEEENAATLQLGQEFQLKQINHQGEEEELIALNLSEARLVIK
EALVERRRAFKRSQKKHKKKHLKHENANDETTAVEDEDDDLDEDDVNADDDDFMHSETRE
KELESIDVLLEQTTGGNNKDLKNTMQYLTNFSRFRDQETVGAVIQLLKSTGLHPFEVAQL
GSLACDTADEAKTLIPSLNNKISDDELERILKELSNLETLY
Sequence of entity 5 (E), FASTA
>4BBR_5 DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1 (chains E)
MDQENERNISRLWRAFRTVKEMVKDRGYFITQEEVELPLEDFKAKYCDSMGRPQRKMMSF
QANPTEESISKFPDMGSLWVEFCDEPSVGVKTMKTFVIHIQEKNFQTGIFVYQNNITPSA
MKLVPSIPPATIETFNEAALVVNITHHELVPKHIRLSSDEKRELLKRYRLKESQLPRIQR
ADPVALYLGLKRGEVVKIIRKSETSGRYASYRICM
Sequence of entity 6 (F), FASTA
>4BBR_6 DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2 (chains F)
MSDYEEAFNDGNENFEDFDVEHFSDEETYEEKPQFKDGETTDANGKTIVTGGNGPEDFQQ
HEQIRRKTLKEKAIPKDQRATTPYMTKYERARILGTRALQISMNAPVFVDLEGETDPLRI
AMKELAEKKIPLVIRRYLPDGSFEDWSVEELIVDL
Sequence of entity 7 (G), FASTA
>4BBR_7 DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB7 (chains G)
MFFIKDLSLNITLHPSFFGPRMKQYLKTKLLEEVEGSCTGKFGYILCVLDYDNIDIQRGR
ILPTDGSAEFNVKYRAVVFKPFKGEVVDGTVVSCSQHGFEVQVGPMKVFVTKHLMPQDLT
FNAGSNPPSYQSSEDVITIKSRIRVKIEGCISQVSSIHAIGSIKEDYLGAI
Sequence of entity 8 (H), FASTA
>4BBR_8 DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3 (chains H)
MSNTLFDDIFQVSEVDPGRYNKVCRIEAASTTQDQCKLTLDINVELFPVAAQDSLTVTIA
SSLNLEDTPANDSSATRSWRPPQAGDRSLADDYDYVMYGTAYKFEEVSKDLIAVYYSFGG
LLMRLEGNYRNLNNLKQENAYLLIRR
Sequence of entity 9 (I), FASTA
>4BBR_9 DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB9 (chains I)
MTTFRFCRDCNNMLYPREDKENNRLLFECRTCSYVEEAGSPLVYRHELITNIGETAGVVQ
DIGSDPTLPRSDRECPKCHSRENVFFQSQQRRKDTSMVLFFVCLSCSHIFTSDQKNKRTQ
FS
Sequence of entity 10 (J), FASTA
>4BBR_10 DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5 (chains J)
MIVPVRCFSCGKVVGDKWESYLNLLQEDELDEGTALSRLGLKRYCCRRMILTHVDLIEKF
LRYNPLEKRD
Sequence of entity 11 (K), FASTA
>4BBR_11 DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB11 (chains K)
MNAPDRFELFLLGEGESKLKIDPDTKAPNAVVITFEKEDHTLGNLIRAELLNDRKVLFAA
YKVEHPFFARFKLRIQTTEGYDPKDALKNACNSIINKLGALKTNFETEWNLQTLAADDAF
Sequence of entity 12 (L), FASTA
>4BBR_12 DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4 (chains L)
MSREGFQIPTNLDAAAAGTSQARTATLKYICAECSSKLSLSRTDAVRCKDCGHRILLKAR
TKRLVQFEAR

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn9
MGMagnesium ionMg2

Primary citation

Structure and Function of the Initially Transcribing RNA Polymerase II-TFIIB Complex. Sainsbury, S., Niesser, J., Cramer, P. Nature (2013) 493:437. DOI 10.1038/NATURE11715 · PubMed

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

Browse structure collections

About this viewer

MolViewer shows 4BBR directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.