EMDB-48071: Cryo-EM structure of Human RNA polymerase II Elongation Complex i...

Basic information

Entry

Database: EMDB / ID: EMD-48071

• Title: Cryo-EM structure of Human RNA polymerase II Elongation Complex in an Intermediate Translocation State
• Map data: Cryo-EM structure of the Free Stalled Human RNA polymerase II Elongation Complex in an Intermediate Translocation State

Sample

• Complex: Free Stalled Human RNA Polymerase II Elongation Complex in an Intermediate Translocation State
  • Protein or peptide: x 12 types
  • DNA: x 2 types
  • RNA: x 1 types
• Ligand: x 2 types

• Keywords: translocation / Human RNA polymerase II / TRANSCRIPTION / TRANSFERASE-DNA-RNA complex

Function / homology

Function:

LRR domain binding / microfibril binding / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / regulation of transcription by RNA polymerase I / RPAP3/R2TP/prefoldin-like complex / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / Cytosolic sensors of pathogen-associated DNA / RNA Polymerase III Abortive And Retractive Initiation / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / RNA Polymerase I Transcription Termination / MicroRNA (miRNA) biogenesis / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / mRNA Splicing - Minor Pathway / PIWI-interacting RNA (piRNA) biogenesis / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / transcription by RNA polymerase I / RNA Polymerase I Transcription Initiation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / nuclear-transcribed mRNA catabolic process / Processing of Capped Intron-Containing Pre-mRNA / positive regulation of translational initiation / transcription by RNA polymerase III / RNA polymerase II transcribes snRNA genes / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / tRNA transcription by RNA polymerase III / RNA polymerase III complex / transcription elongation by RNA polymerase I / Formation of HIV elongation complex in the absence of HIV Tat / transcription-coupled nucleotide-excision repair / RNA polymerase II, core complex / : / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / translation initiation factor binding / RNA Polymerase II Pre-transcription Events / DNA-directed RNA polymerase activity / Inhibition of DNA recombination at telomere / mRNA Splicing - Major Pathway / positive regulation of RNA splicing / promoter-specific chromatin binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / P-body / DNA-templated transcription termination / protein-DNA complex / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / ribonucleoside binding / kinase binding / Formation of TC-NER Pre-Incision Complex / fibrillar center / Activation of anterior HOX genes in hindbrain development during early embryogenesis / : / : / : / : / : / : / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / single-stranded DNA binding / chromosome / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / Estrogen-dependent gene expression / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding / hydrolase activity / protein dimerization activity / protein stabilization / nuclear speck / RNA-directed RNA polymerase / RNA-directed RNA polymerase activity

Domain/homology:

DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb1 C-terminal repeat / RNA polymerase II, heptapeptide repeat, eukaryotic / Eukaryotic RNA polymerase II heptapeptide repeat. / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / RNA polymerase Rpb1, domain 7 / RNA polymerase Rpb1, domain 7 superfamily / RNA polymerase Rpb1, domain 7 / Pol II subunit B9, C-terminal zinc ribbon / RNA polymerase RBP11 / Rpb4/RPC9 superfamily / RNA polymerase subunit Rpb4/RPC9 / RNA polymerase Rpb4 / Zinc finger TFIIS-type signature. / HRDC-like superfamily / RNA polymerase Rpb7-like , N-terminal / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase subunit Rpb7-like / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 4 / DNA-directed RNA polymerase, M/15kDa subunit / RNA polymerases M/15 Kd subunit / RNA polymerase subunit 9 / DNA-directed RNA polymerase M, 15kDa subunit, conserved site / RNA polymerases M / 15 Kd subunits signature. / DNA-directed RNA polymerase subunit/transcription factor S / : / RNA polymerase, Rpb8 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerase Rpb8 / RNA polymerase subunit 8 / RNA polymerase, Rpb5, N-terminal / RNA polymerase Rpb5, N-terminal domain superfamily / RNA polymerase Rpb5, N-terminal domain / DNA-directed RNA polymerase, subunit RPB6 / DNA-directed RNA polymerase subunit RPABC5/Rpb10 / RNA polymerases, subunit N, zinc binding site / RNA polymerase subunit RPB10 / RNA polymerases N / 8 kDa subunit / RNA polymerases N / 8 Kd subunits signature. / DNA directed RNA polymerase, 7 kDa subunit / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerases H / 23 Kd subunits signature. / RNA polymerase subunit CX / DNA-directed RNA polymerase, 30-40kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo3/Rpb3/RPAC1 / RNA polymerases D / 30 to 40 Kd subunits signature. / DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo11 / RNA polymerases L / 13 to 16 Kd subunits signature. / Zinc finger, TFIIS-type / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / Transcription factor S-II (TFIIS) / Zinc finger TFIIS-type profile. / C2C2 Zinc finger / DNA-directed RNA polymerase, RBP11-like dimerisation domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerase, subunit H/Rpb5 C-terminal / DNA-directed RNA polymerase subunit Rpo5/Rpb5 / RPB5-like RNA polymerase subunit superfamily / RNA polymerase Rpb5, C-terminal domain / Archaeal Rpo6/eukaryotic RPB6 RNA polymerase subunit / DNA-directed RNA polymerase, 14-18kDa subunit, conserved site / RNA polymerases K / 14 to 18 Kd subunits signature. / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / S1 domain / DNA-directed RNA polymerase, subunit beta-prime / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RNA polymerase Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / DNA-directed RNA polymerase, insert domain / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases D / RNA polymerase Rpb1, clamp domain superfamily / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / RNA polymerase, alpha subunit / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / DNA-directed RNA polymerase, insert domain superfamily

Component:

DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase II subunit RPB1 / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB9 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerases I, II, and III subunit RPABC5

• Biological species: Homo sapiens (human)
• Method: single particle reconstruction / cryo EM / Resolution: 2.6 Å
• Authors: Florez Ariza A / Lue N / Nogales E

Funding support

United States, 2 items

Organization	Grant number	Country
Howard Hughes Medical Institute (HHMI)		United States
National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)	R35 GM127018	United States

• Citation: Journal: bioRxiv / Year: 2025; Title: Structural insights into transcriptional regulation by the helicase RECQL5.; Authors: Alfredo Jose Florez Ariza / Nicholas Z Lue / Patricia Grob / Benjamin Kaeser / Jie Fang / Susanne A Kassube / Eva Nogales / ; Abstract: Transcription and its regulation pose a major challenge for genome stability. The helicase RECQL5 has been proposed as an important factor to help safeguard the genome, and is the only member of the human RecQ helicase family that directly binds to RNA Polymerase II (Pol II) and affects its progression. RECQL5 mitigates transcription stress and genome instability in cells, yet the molecular mechanism underlying this phenomenon is unclear. Here, we employ cryo-electron microscopy (cryo-EM) to determine the structures of stalled Pol II elongation complexes (ECs) bound to RECQL5. Our structures reveal the molecular interactions stabilizing RECQL5 binding to the Pol II EC and highlight its role as a transcriptional roadblock. Additionally, we find that RECQL5 can modulate the Pol II translocation state. In its nucleotide-free state, RECQL5 mechanically twists the downstream DNA in the EC, and upon nucleotide binding, it undergoes a conformational change that allosterically induces Pol II towards a post-translocation state. We propose this mechanism may help restart Pol II elongation and therefore contribute to reduction of transcription stress.

History

Deposition	Nov 25, 2024	-
Header (metadata) release	Mar 5, 2025	-
Map release	Mar 5, 2025	-
Update	Mar 5, 2025	-
Current status	Mar 5, 2025	Processing site: RCSB / Status: Released

Map

• File: Download / File: emd_48071.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
• Annotation: Cryo-EM structure of the Free Stalled Human RNA polymerase II Elongation Complex in an Intermediate Translocation State
• Voxel size: X=Y=Z: 1.05 Å

Density

Contour Level	By AUTHOR: 0.06
Minimum - Maximum	-0.046175145 - 2.0029912
Average (Standard dev.)	0.0017608912 (±0.02934405)

• Symmetry: Space group: 1

Details

EMDB XML:

Map geometry	Axis order X Y Z Origin 0 0 0 Dimensions 320 320 320 Spacing 320 320 320
Cell	A=B=C: 336.0 Å α=β=γ: 90.0 °

Supplemental data

Mask #1

• File: emd_48071_msk_1.map

Additional map: Unsharpened cryo-EM density map

• File: emd_48071_additional_1.map
• Annotation: Unsharpened cryo-EM density map

Half map: half-map 1

• File: emd_48071_half_map_1.map
• Annotation: half-map 1

Half map: half-map 2

• File: emd_48071_half_map_2.map
• Annotation: half-map 2

Sample components

Entire : Free Stalled Human RNA Polymerase II Elongation Complex in an Int...

• Entire: Name: Free Stalled Human RNA Polymerase II Elongation Complex in an Intermediate Translocation State

Components

• Complex: Free Stalled Human RNA Polymerase II Elongation Complex in an Intermediate Translocation State
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB4
  • Protein or peptide: DNA-directed RNA polymerases I, II, and III subunit RPABC1
  • Protein or peptide: DNA-directed RNA polymerases I, II, and III subunit RPABC2
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB7
  • Protein or peptide: DNA-directed RNA polymerases I, II, and III subunit RPABC3
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB9
  • Protein or peptide: DNA-directed RNA polymerases I, II, and III subunit RPABC5
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB11-a
  • Protein or peptide: DNA-directed RNA polymerases I, II, and III subunit RPABC4
  • DNA: Non-template DNA, nucleic acid scaffold
  • RNA: RNA, nucleic acid scaffold
  • DNA: Template DNA, nucleic acid scaffold
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB1
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB2
  • Protein or peptide: DNA-directed RNA polymerase II subunit RPB3
• Ligand: ZINC ION
• Ligand: MAGNESIUM ION

Supramolecule #1: Free Stalled Human RNA Polymerase II Elongation Complex in an Int...

• Supramolecule: Name: Free Stalled Human RNA Polymerase II Elongation Complex in an Intermediate Translocation State; type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#15
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 430 KDa

Macromolecule #1: DNA-directed RNA polymerase II subunit RPB4

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB4 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 16.331255 KDa

Sequence

String:

MAAGGSDPRA GDVEEDASQL IFPKEFETAE TLLNSEVHML LEHRKQQNES AEDEQELSEV FMKTLNYTAR FSRFKNRETI ASVRSLLLQ KKLHKFELAC LANLCPETAE ESKALIPSLE GRFEDEELQQ ILDDIQTKRS FQY

UniProtKB: DNA-directed RNA polymerase II subunit RPB4

Macromolecule #2: DNA-directed RNA polymerases I, II, and III subunit RPABC1

• Macromolecule: Name: DNA-directed RNA polymerases I, II, and III subunit RPABC1; type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 24.644318 KDa

Sequence

String:

MDDEEETYRL WKIRKTIMQL CHDRGYLVTQ DELDQTLEEF KAQFGDKPSE GRPRRTDLTV LVAHNDDPTD QMFVFFPEEP KVGIKTIKV YCQRMQEENI TRALIVVQQG MTPSAKQSLV DMAPKYILEQ FLQQELLINI TEHELVPEHV VMTKEEVTEL L ARYKLREN QLPRIQAGDP VARYFGIKRG QVVKIIRPSE TAGRYITYRL VQ

UniProtKB: DNA-directed RNA polymerases I, II, and III subunit RPABC1

Macromolecule #3: DNA-directed RNA polymerases I, II, and III subunit RPABC2

• Macromolecule: Name: DNA-directed RNA polymerases I, II, and III subunit RPABC2; type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 14.491026 KDa

Sequence

String:

MSDNEDNFDG DDFDDVEEDE GLDDLENAEE EGQENVEILP SGERPQANQK RITTPYMTKY ERARVLGTRA LQIAMCAPVM VELEGETDP LLIAMKELKA RKIPIIIRRY LPDGSYEDWG VDELIITD

UniProtKB: DNA-directed RNA polymerases I, II, and III subunit RPABC2

Macromolecule #4: DNA-directed RNA polymerase II subunit RPB7

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB7 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 19.314283 KDa

Sequence

String:

MFYHISLEHE ILLHPRYFGP NLLNTVKQKL FTEVEGTCTG KYGFVIAVTT IDNIGAGVIQ PGRGFVLYPV KYKAIVFRPF KGEVVDAVV TQVNKVGLFT EIGPMSCFIS RHSIPSEMEF DPNSNPPCYK TMDEDIVIQQ DDEIRLKIVG TRVDKNDIFA I GSLMDDYL GLVS

UniProtKB: DNA-directed RNA polymerase II subunit RPB7

Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC3

• Macromolecule: Name: DNA-directed RNA polymerases I, II, and III subunit RPABC3; type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 17.162273 KDa

Sequence

String:

MAGILFEDIF DVKDIDPEGK KFDRVSRLHC ESESFKMDLI LDVNIQIYPV DLGDKFRLVI ASTLYEDGTL DDGEYNPTDD RPSRADQFE YVMYGKVYRI EGDETSTEAA TRLSAYVSYG GLLMRLQGDA NNLHGFEVDS RVYLLMKKLA F

UniProtKB: DNA-directed RNA polymerases I, II, and III subunit RPABC3

Macromolecule #6: DNA-directed RNA polymerase II subunit RPB9

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB9 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 14.541221 KDa

Sequence

String:

MEPDGTYEPG FVGIRFCQEC NNMLYPKEDK ENRILLYACR NCDYQQEADN SCIYVNKITH EVDELTQIIA DVSQDPTLPR TEDHPCQKC GHKEAVFFQS HSARAEDAMR LYYVCTAPHC GHRWTE

UniProtKB: DNA-directed RNA polymerase II subunit RPB9

Macromolecule #7: DNA-directed RNA polymerases I, II, and III subunit RPABC5

• Macromolecule: Name: DNA-directed RNA polymerases I, II, and III subunit RPABC5; type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 7.655123 KDa

Sequence

String:

MIIPVRCFTC GKIVGNKWEA YLGLLQAEYT EGDALDALGL KRYCCRRMLL AHVDLIEKLL NYAPLEK

UniProtKB: DNA-directed RNA polymerases I, II, and III subunit RPABC5

Macromolecule #8: DNA-directed RNA polymerase II subunit RPB11-a

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB11-a / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 13.310284 KDa

Sequence

String:

MNAPPAFESF LLFEGEKKIT INKDTKVPNA CLFTINKEDH TLGNIIKSQL LKDPQVLFAG YKVPHPLEHK IIIRVQTTPD YSPQEAFTN AITDLISELS LLEERFRVAI KDKQEGIE

UniProtKB: DNA-directed RNA polymerase II subunit RPB11-a

Macromolecule #9: DNA-directed RNA polymerases I, II, and III subunit RPABC4

• Macromolecule: Name: DNA-directed RNA polymerases I, II, and III subunit RPABC4; type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 7.018244 KDa

Sequence

String:

MDTQKDVQPP KQQPMIYICG ECHTENEIKS RDPIRCRECG YRIMYKKRTK RLVVFDAR

UniProtKB: DNA-directed RNA polymerases I, II, and III subunit RPABC4

Macromolecule #13: DNA-directed RNA polymerase II subunit RPB1

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB1 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 217.420047 KDa

Sequence

String:

MHGGGPPSGD SACPLRTIKR VQFGVLSPDE LKRMSVTEGG IKYPETTEGG RPKLGGLMDP RQGVIERTGR CQTCAGNMTE CPGHFGHIE LAKPVFHVGF LVKTMKVLRC VCFFCSKLLV DSNNPKIKDI LAKSKGQPKK RLTHVYDLCK GKNICEGGEE M DNKFGVEQ PEGDEDLTKE KGHGGCGRYQ PRIRRSGLEL YAEWKHVNED SQEKKILLSP ERVHEIFKRI SDEECFVLGM EP RYARPEW MIVTVLPVPP LSVRPAVVMQ GSARNQDDLT HKLADIVKIN NQLRRNEQNG AAAHVIAEDV KLLQFHVATM VDN ELPGLP RAMQKSGRPL KSLKQRLKGK EGRVRGNLMG KRVDFSARTV ITPDPNLSID QVGVPRSIAA NMTFAEIVTP FNID RLQEL VRRGNSQYPG AKYIIRDNGD RIDLRFHPKP SDLHLQTGYK VERHMCDGDI VIFNRQPTLH KMSMMGHRVR ILPWS TFRL NLSVTTPYNA DFDGDEMNLH LPQSLETRAE IQELAMVPRM IVTPQSNRPV MGIVQDTLTA VRKFTKRDVF LERGEV MNL LMFLSTWDGK VPQPAILKPR PLWTGKQIFS LIIPGHINCI RTHSTHPDDE DSGPYKHISP GDTKVVVENG ELIMGIL CK KSLGTSAGSL VHISYLEMGH DITRLFYSNI QTVINNWLLI EGHTIGIGDS IADSKTYQDI QNTIKKAKQD VIEVIEKA H NNELEPTPGN TLRQTFENQV NRILNDARDK TGSSAQKSLS EYNNFKSMVV SGAKGSKINI SQVIAVVGQQ NVEGKRIPF GFKHRTLPHF IKDDYGPESR GFVENSYLAG LTPTEFFFHA MGGREGLIDT AVKTAETGYI QRRLIKSMES VMVKYDATVR NSINQVVQL RYGEDGLAGE SVEFQNLATL KPSNKAFEKK FRFDYTNERA LRRTLQEDLV KDVLSNAHIQ NELEREFERM R EDREVLRV IFPTGDSKVV LPCNLLRMIW NAQKIFHINP RLPSDLHPIK VVEGVKELSK KLVIVNGDDP LSRQAQENAT LL FNIHLRS TLCSRRMAEE FRLSGEAFDW LLGEIESKFN QAIAHPGEMV GALAAQSLGE PATQMTLNTF HYAGVSAKNV TLG VPRLKE LINISKKPKT PSLTVFLLGQ SARDAERAKD ILCRLEHTTL RKVTANTAIY YDPNPQSTVV AEDQEWVNVY YEMP DFDVA RISPWLLRVE LDRKHMTDRK LTMEQIAEKI NAGFGDDLNC IFNDDNAEKL VLRIRIMNSD ENKMQEEEEV VDKMD DDVF LRCIESNMLT DMTLQGIEQI SKVYMHLPQT DNKKKIIITE DGEFKALQEW ILETDGVSLM RVLSEKDVDP VRTTSN DIV EIFTVLGIEA VRKALERELY HVISFDGSYV NYRHLALLCD TMTCRGHLMA ITRHGVNRQD TGPLMKCSFE ETVDVLM EA AAHGESDPMK GVSENIMLGQ LAPAGTGCFD LLLDAEKCKY GMEIPTNIPG LGAAGPTGMF FGSAPSPMGG ISPAMTPW N QGATPAYGAW SPSVGSGMTP GAAGFSPSAA SDASGFSPGY SPAWSPTPGS PGSPGPSSPY IPSPGGAMSP SYSPTSPAY EPRSPGGYTP QSPSYSPTSP SYSPTSPSYS PTSPNYSPTS PSYSPTSPSY SPTSPSYSPT SPSYSPTSPS YSPTSPSYSP TSPSYSPTS PSYSPTSPSY SPTSPSYSPT SPSYSPTSPS YSPTSPSYSP TSPSYSPTSP SYSPTSPNYS PTSPNYTPTS P SYSPTSPS YSPTSPNYTP TSPNYSPTSP SYSPTSPSYS PTSPSYSPSS PRYTPQSPTY TPSSPSYSPS SPSYSPASPK YT PTSPSYS PSSPEYTPTS PKYSPTSPKY SPTSPKYSPT SPTYSPTTPK YSPTSPTYSP TSPVYTPTSP KYSPTSPTYS PTS PKYSPT SPTYSPTSPK GSTYSPTSPG YSPTSPTYSL TSPAISPDDS DEEN

UniProtKB: DNA-directed RNA polymerase II subunit RPB1

Macromolecule #14: DNA-directed RNA polymerase II subunit RPB2

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB2 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 134.071453 KDa

Sequence

String:

MYDADEDMQY DEDDDEITPD LWQEACWIVI SSYFDEKGLV RQQLDSFDEF IQMSVQRIVE DAPPIDLQAE AQHASGEVEE PPRYLLKFE QIYLSKPTHW ERDGAPSPMM PNEARLRNLT YSAPLYVDIT KTVIKEGEEQ LQTQHQKTFI GKIPIMLRST Y CLLNGLTD RDLCELNECP LDPGGYFIIN GSEKVLIAQE KMATNTVYVF AKKDSKYAYT GECRSCLENS SRPTSTIWVS ML ARGGQGA KKSAIGQRIV ATLPYIKQEV PIIIVFRALG FVSDRDILEH IIYDFEDPEM MEMVKPSLDE AFVIQEQNVA LNF IGSRGA KPGVTKEKRI KYAKEVLQKE MLPHVGVSDF CETKKAYFLG YMVHRLLLAA LGRRELDDRD HYGNKRLDLA GPLL AFLFR GMFKNLLKEV RIYAQKFIDR GKDFNLELAI KTRIISDGLK YSLATGNWGD QKKAHQARAG VSQVLNRLTF ASTLS HLRR LNSPIGRDGK LAKPRQLHNT LWGMVCPAET PEGHAVGLVK NLALMAYISV GSQPSPILEF LEEWSMENLE EISPAA IAD ATKIFVNGCW VGIHKDPEQL MNTLRKLRRQ MDIIVSEVSM IRDIREREIR IYTDAGRICR PLLIVEKQKL LLKKRHI DQ LKEREYNNYS WQDLVASGVV EYIDTLEEET VMLAMTPDDL QEKEVAYCST YTHCEIHPSM ILGVCASIIP FPDHNQSP R NTYQSAMGKQ AMGVYITNFH VRMDTLAHVL YYPQKPLVTT RSMEYLRFRE LPAGINSIVA IASYTGYNQE DSVIMNRSA VDRGFFRSVF YRSYKEQESK KGFDQEEVFE KPTRETCQGM RHAIYDKLDD DGLIAPGVRV SGDDVIIGKT VTLPENEDEL ESTNRRYTK RDCSTFLRTS ETGIVDQVMV TLNQEGYKFC KIRVRSVRIP QIGDKFASRH GQKGTCGIQY RQEDMPFTCE G ITPDIIIN PHAIPSRMTI GHLIECLQGK VSANKGEIGD ATPFNDAVNV QKISNLLSDY GYHLRGNEVL YNGFTGRKIT SQ IFIGPTY YQRLKHMVDD KIHSRARGPI QILNRQPMEG RSRDGGLRFG EMERDCQIAH GAAQFLRERL FEASDPYQVH VCN LCGIMA IANTRTHTYE CRGCRNKTQI SLVRMPYACK LLFQELMSMS IAPRMMSV

UniProtKB: DNA-directed RNA polymerase II subunit RPB2

Macromolecule #15: DNA-directed RNA polymerase II subunit RPB3

• Macromolecule: Name: DNA-directed RNA polymerase II subunit RPB3 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 31.478148 KDa

Sequence

String:

MPYANQPTVR ITELTDENVK FIIENTDLAV ANSIRRVFIA EVPIIAIDWV QIDANSSVLH DEFIAHRLGL IPLISDDIVD KLQYSRDCT CEEFCPECSV EFTLDVRCNE DQTRHVTSRD LISNSPRVIP VTSRNRDNDP NDYVEQDDIL IVKLRKGQEL R LRAYAKKG FGKEHAKWNP TAGVAFEYDP DNALRHTVYP KPEEWPKSEY SELDEDESQA PYDPNGKPER FYYNVESCGS LR PETIVLS ALSGLKKKLS DLQTQLSHEI QSDVLTIN

UniProtKB: DNA-directed RNA polymerase II subunit RPB3

Macromolecule #10: Non-template DNA, nucleic acid scaffold

• Macromolecule: Name: Non-template DNA, nucleic acid scaffold / type: dna / ID: 10 / Number of copies: 1 / Classification: DNA
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 13.305593 KDa

Sequence

String:

(DT)(DA)(DG)(DT)(DA)(DA)(DA)(DC)(DT)(DA) (DG)(DT)(DA)(DT)(DT)(DG)(DA)(DA)(DA)(DG) (DT)(DA)(DC)(DT)(DT)(DG)(DA)(DG)(DC) (DT)(DT)(DA)(DG)(DA)(DC)(DA)(DG)(DC)(DA) (DT) (DG)(DT)(DC)

Macromolecule #12: Template DNA, nucleic acid scaffold

• Macromolecule: Name: Template DNA, nucleic acid scaffold / type: dna / ID: 12 / Number of copies: 1 / Classification: DNA
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 8.515503 KDa

Sequence

String:

(DC)(DT)(DC)(DA)(DA)(DG)(DT)(DA)(DC)(DT) (DT)(DA)(DC)(DG)(DC)(DC)(DT)(DG)(DG)(DT) (DC)(DA)(DT)(DT)(DA)(DC)(DT)(DA)

Macromolecule #11: RNA, nucleic acid scaffold

• Macromolecule: Name: RNA, nucleic acid scaffold / type: rna / ID: 11 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 6.414902 KDa

Sequence

String:

UAUAUGCAUA AAGACCAGGC

Macromolecule #16: ZINC ION

• Macromolecule: Name: ZINC ION / type: ligand / ID: 16 / Number of copies: 8 / Formula: ZN
• Molecular weight: Theoretical: 65.409 Da

Macromolecule #17: MAGNESIUM ION

• Macromolecule: Name: MAGNESIUM ION / type: ligand / ID: 17 / Number of copies: 1 / Formula: MG
• Molecular weight: Theoretical: 24.305 Da

Experimental details

Structure determination

• Method: cryo EM
• Processing: single particle reconstruction
• Aggregation state: particle

Sample preparation

• Buffer: pH: 8
• Vitrification: Cryogen name: ETHANE

Electron microscopy

• Microscope: TFS KRIOS
• Image recording: Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Ų
• Electron beam: Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
• Electron optics: Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm
• Experimental equipment: Model: Titan Krios / Image courtesy: FEI Company

Image processing

Startup model

Type of model: PDB ENTRY
PDB model - PDB ID:

5flm

• Final reconstruction: Resolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 174428
• Initial angle assignment: Type: MAXIMUM LIKELIHOOD
• Final angle assignment: Type: MAXIMUM LIKELIHOOD