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- EMDB-56542: RNA polymerase II bound to RPAP2 and Gdown1 -

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Basic information

Entry
Database: EMDB / ID: EMD-56542
TitleRNA polymerase II bound to RPAP2 and Gdown1
Map datafiltered based on local resolution
Sample
  • Complex: RNA polymerase II bound to RPAP2 and Gdown1
    • Protein or peptide: x 14 types
  • Ligand: x 1 types
KeywordsRNA polymerase II / GENE REGULATION
Function / homology
Function and homology information


maintenance of ER location / RNA polymerase II CTD heptapeptide repeat phosphatase activity / snRNA transcription / RNA polymerase core enzyme binding / microfibril binding / PERK-mediated unfolded protein response / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / regulation of transcription by RNA polymerase I / RNA Polymerase III Transcription Initiation From Type 1 Promoter ...maintenance of ER location / RNA polymerase II CTD heptapeptide repeat phosphatase activity / snRNA transcription / RNA polymerase core enzyme binding / microfibril binding / PERK-mediated unfolded protein response / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / regulation of transcription by RNA polymerase I / 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 / RNA Polymerase III Abortive And Retractive Initiation / Cytosolic sensors of pathogen-associated DNA / transcription elongation factor activity / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / transcription preinitiation complex / RNA Polymerase I Transcription Termination / Viral Messenger RNA Synthesis / I band / Signaling by FGFR2 IIIa TM / MicroRNA (miRNA) biogenesis / protein-serine/threonine phosphatase / LRR domain binding / 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 / Processing of Capped Intron-Containing Pre-mRNA / PIWI-interacting RNA (piRNA) biogenesis / mRNA Splicing - Minor Pathway / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / protein serine/threonine phosphatase activity / RNA polymerase II complex binding / RNA Polymerase I Transcription Initiation / termination of RNA polymerase II transcription / RNA polymerase II transcribes snRNA genes / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / termination of RNA polymerase I transcription / transcription by RNA polymerase III / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / nucleolar large rRNA transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / positive regulation of translational initiation / nuclear-transcribed mRNA catabolic process / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / termination of RNA polymerase III transcription / transcription initiation at RNA polymerase III promoter / RNA Polymerase II Transcription Elongation / RNA polymerase I complex / RNA polymerase III complex / Formation of RNA Pol II elongation complex / RNA polymerase II, core complex / transcription elongation by RNA polymerase I / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / RNA Polymerase II Pre-transcription Events / mRNA Splicing - Major Pathway / transcription-coupled nucleotide-excision repair / translation initiation factor binding / positive regulation of RNA splicing / Inhibition of DNA recombination at telomere / DNA-templated transcription elongation / TP53 Regulates Transcription of DNA Repair Genes / Transcriptional regulation by small RNAs / promoter-specific chromatin binding / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase II promoter / P-body / DNA-templated transcription termination / protein-DNA complex / transcription elongation by RNA polymerase II / fibrillar center / NoRC negatively regulates rRNA expression / mRNA transcription by RNA polymerase II / B-WICH complex positively regulates rRNA expression / transcription by RNA polymerase II / kinase binding / ribonucleoside binding / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / mRNA Polyadenylation / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER
Similarity search - Function
DNA-directed RNA polymerase II subunit GRINL1 / Putative GRINL1B complex locus protein 2 / : / Rtr1/RPAP2 domain / Rtr1/RPAP2 domain superfamily / Rtr1/RPAP2 / Rtr1/RPAP2 family / RTR1-type zinc finger. / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core ...DNA-directed RNA polymerase II subunit GRINL1 / Putative GRINL1B complex locus protein 2 / : / Rtr1/RPAP2 domain / Rtr1/RPAP2 domain superfamily / Rtr1/RPAP2 / Rtr1/RPAP2 family / RTR1-type zinc finger. / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / 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 Rpb1, domain 7 / RNA polymerase Rpb1, domain 7 superfamily / RNA polymerase Rpb1, domain 7 / Rpb4/RPC9 superfamily / Pol II subunit B9, C-terminal zinc ribbon / RNA polymerase RBP11 / RNA polymerase subunit Rpb4/RPC9 / RNA polymerase Rpb4 / Zinc finger TFIIS-type signature. / 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 / HRDC-like superfamily / 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. / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerases H / 23 Kd subunits signature. / DNA directed RNA polymerase, 7 kDa subunit / Zinc finger, TFIIS-type / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / Transcription factor S-II (TFIIS) / Zinc finger TFIIS-type profile. / C2C2 Zinc finger / 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. / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / 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 Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 superfamily / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RPB6/omega subunit-like superfamily / 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 / 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
Similarity search - Domain/homology
DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit GRINL1A / 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 polymerase II subunit RPB4 / DNA-directed RNA polymerase II subunit GRINL1A / 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 / Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.94 Å
AuthorsSchmitzova J / Zhan Y / Dienemann C
Funding support Germany, 1 items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Nat Commun / Year: 2026
Title: Structure of human cytoplasmic Pol II complex explains global transcription repression by GDOWN1.
Authors: Jana Schmitzová / Yumeng Zhan / Srinivasan Rengachari / Frauke Grabbe / Olexandr Dybkov / Henning Urlaub / Michael Lidschreiber / Christian Dienemann / Patrick Cramer /
Abstract: RNA polymerase II (Pol II) is a 12-subunit enzyme crucial for gene transcription in the nucleus. However, its assembly in the cytoplasm, nuclear import, and nuclear function of assembly factors ...RNA polymerase II (Pol II) is a 12-subunit enzyme crucial for gene transcription in the nucleus. However, its assembly in the cytoplasm, nuclear import, and nuclear function of assembly factors remain poorly understood. Here, we isolated Pol II from the cytoplasmic fraction of human cells (cfPol II) and find it associated with the assembly and transport factors GDOWN1, RPAP2, GPN1, and GPN3. Cryo-EM analysis of cfPol II resolves RPAP2 and GDOWN1 bound to Pol II at 2.9 Å resolution and shows that Pol II is fully assembled in the cytoplasm before nuclear import. Our structure of GDOWN1 bound to the Pol II surface reveals three distinct regions of GDOWN1 that interact with the RPB2 protrusion domain, RPB3, and RPB10. Biochemical analyses show that GDOWN1 facilitates soluble expression of a subcomplex comprising RPB3, RPB10, RPB11 and RPB12, suggesting a role for GDOWN1 in Pol II assembly. Further, GDOWN1 binding to Pol II overlaps with binding sites of the essential transcription factors IIB and IIF, rendering cfPol II inactive in promoter-dependent transcription initiation in vitro. Our results provide a basis for GDOWN1-dependent global transcription repression and suggest a model for a role of GDOWN1 in Pol II assembly, import, and transcription regulation.
History
DepositionFeb 3, 2026-
Header (metadata) releaseAug 19, 2026-
Map releaseAug 19, 2026-
UpdateAug 19, 2026-
Current statusAug 19, 2026Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_56542.png

Downloads & links

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Map

FileDownload / File: emd_56542.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationfiltered based on local resolution
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 280 pix.
= 294. Å		1.05 Å/pix.
x 280 pix.
= 294. Å		1.05 Å/pix.
x 280 pix.
= 294. Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.05 Å
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Histogram (log scale)
Contour LevelBy AUTHOR: 0.00511
Minimum - Maximum-0.021799853 - 0.05482566
Average (Standard dev.)0.00001636764 (±0.0017556365)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 294.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: half map

Fileemd_56542_half_map_1.map
Annotationhalf map
Projections & Slices
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Half map: half map

Fileemd_56542_half_map_2.map
Annotationhalf map
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Sample components

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Entire : RNA polymerase II bound to RPAP2 and Gdown1

EntireName: RNA polymerase II bound to RPAP2 and Gdown1
Components
  • Complex: RNA polymerase II bound to RPAP2 and Gdown1
    • 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
    • Protein or peptide: DNA-directed RNA polymerase II subunit GRINL1A
    • 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
    • Protein or peptide: Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2
  • Ligand: ZINC ION

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Supramolecule #1: RNA polymerase II bound to RPAP2 and Gdown1

SupramoleculeName: RNA polymerase II bound to RPAP2 and Gdown1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#14
Source (natural)Organism: Homo sapiens (human)

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

MacromoleculeName: 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 weightTheoretical: 16.331255 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MAAGGSDPRA GDVEEDASQL IFPKEFETAE TLLNSEVHML LEHRKQQNES AEDEQELSEV FMKTLNYTAR FSRFKNRETI ASVRSLLLQ KKLHKFELAC LANLCPETAE ESKALIPSLE GRFEDEELQQ ILDDIQTKRS FQY

UniProtKB: DNA-directed RNA polymerase II subunit RPB4

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

MacromoleculeName: 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 weightTheoretical: 24.584223 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MDDEEETYRL WKIRKTIMQL CHDRGYLVTQ DELDQTLEEF KAQSGDKPSE GRPRRTDLTV LVAHNDDPTD QMFVFFPEEP KVGIKTIKV YCQRMQEENI TRALIVVQQG MTPSAKQSLV DMAPKYILEQ FLQQELLINI TEHELVPEHV VMTKEEVTEL L ARYKLREN ...String:
MDDEEETYRL WKIRKTIMQL CHDRGYLVTQ DELDQTLEEF KAQSGDKPSE 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

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

MacromoleculeName: 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 weightTheoretical: 14.491026 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MSDNEDNFDG DDFDDVEEDE GLDDLENAEE EGQENVEILP SGERPQANQK RITTPYMTKY ERARVLGTRA LQIAMCAPVM VELEGETDP LLIAMKELKA RKIPIIIRRY LPDGSYEDWG VDELIITD

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

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

MacromoleculeName: 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 weightTheoretical: 19.314283 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
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

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

MacromoleculeName: 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 weightTheoretical: 17.162273 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
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

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

MacromoleculeName: 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 weightTheoretical: 14.541221 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MEPDGTYEPG FVGIRFCQEC NNMLYPKEDK ENRILLYACR NCDYQQEADN SCIYVNKITH EVDELTQIIA DVSQDPTLPR TEDHPCQKC GHKEAVFFQS HSARAEDAMR LYYVCTAPHC GHRWTE

UniProtKB: DNA-directed RNA polymerase II subunit RPB9

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

MacromoleculeName: 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 weightTheoretical: 7.655123 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MIIPVRCFTC GKIVGNKWEA YLGLLQAEYT EGDALDALGL KRYCCRRMLL AHVDLIEKLL NYAPLEK

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

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

MacromoleculeName: 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 weightTheoretical: 13.310284 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MNAPPAFESF LLFEGEKKIT INKDTKVPNA CLFTINKEDH TLGNIIKSQL LKDPQVLFAG YKVPHPLEHK IIIRVQTTPD YSPQEAFTN AITDLISELS LLEERFRVAI KDKQEGIE

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

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

MacromoleculeName: 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 weightTheoretical: 7.018244 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MDTQKDVQPP KQQPMIYICG ECHTENEIKS RDPIRCRECG YRIMYKKRTK RLVVFDAR

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

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Macromolecule #10: DNA-directed RNA polymerase II subunit GRINL1A

MacromoleculeName: DNA-directed RNA polymerase II subunit GRINL1A / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.803609 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MCSLPRGFEP QAPEDLAQRS LVELREMLKR QERLLRNEKF ICKLPDKGKK IFDSFAKLKA AIAECEEVRR KSELFNPVSL DCKLRQKAI AEVDVGTDKA QNSDPILDTS SLVPGCSSVD NIKSSQTSQN QGLGRPTLEG DEETSEVEYT VNKGPASSNR D RVPPSSEA ...String:
MCSLPRGFEP QAPEDLAQRS LVELREMLKR QERLLRNEKF ICKLPDKGKK IFDSFAKLKA AIAECEEVRR KSELFNPVSL DCKLRQKAI AEVDVGTDKA QNSDPILDTS SLVPGCSSVD NIKSSQTSQN QGLGRPTLEG DEETSEVEYT VNKGPASSNR D RVPPSSEA SEHHPRHRVS SQAEDTSSSF DNLFIDRLQR ITIADQGEQQ SEENASTKNL TGLSSGTEKK PHYMEVLEMR AK NPVPQLR KFKTNVLPFR QNDSSSHCQK SGSPISSEER RRRDKQHLDD ITAARLLPLH HMPTQLLSIE ESLALQKQQK QNY EEMQAK LAAQKLAERL NIKMRSYNPE GESSGRYREV RDEDDDWSSD EF

UniProtKB: DNA-directed RNA polymerase II subunit GRINL1A

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Macromolecule #11: DNA-directed RNA polymerase II subunit RPB1

MacromoleculeName: DNA-directed RNA polymerase II subunit RPB1 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 217.420047 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MHGGGPPSGD SACPLRTIKR VQFGVLSPDE LKRMSVTEGG IKYPETTEGG RPKLGGLMDP RQGVIERTGR CQTCAGNMTE CPGHFGHIE LAKPVFHVGF LVKTMKVLRC VCFFCSKLLV DSNNPKIKDI LAKSKGQPKK RLTHVYDLCK GKNICEGGEE M DNKFGVEQ ...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

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Macromolecule #12: DNA-directed RNA polymerase II subunit RPB2

MacromoleculeName: DNA-directed RNA polymerase II subunit RPB2 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 134.071453 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MYDADEDMQY DEDDDEITPD LWQEACWIVI SSYFDEKGLV RQQLDSFDEF IQMSVQRIVE DAPPIDLQAE AQHASGEVEE PPRYLLKFE QIYLSKPTHW ERDGAPSPMM PNEARLRNLT YSAPLYVDIT KTVIKEGEEQ LQTQHQKTFI GKIPIMLRST Y CLLNGLTD ...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

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Macromolecule #13: DNA-directed RNA polymerase II subunit RPB3

MacromoleculeName: DNA-directed RNA polymerase II subunit RPB3 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 31.478148 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPYANQPTVR ITELTDENVK FIIENTDLAV ANSIRRVFIA EVPIIAIDWV QIDANSSVLH DEFIAHRLGL IPLISDDIVD KLQYSRDCT CEEFCPECSV EFTLDVRCNE DQTRHVTSRD LISNSPRVIP VTSRNRDNDP NDYVEQDDIL IVKLRKGQEL R LRAYAKKG ...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

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Macromolecule #14: Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2

MacromoleculeName: Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2
type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO / EC number: protein-serine/threonine phosphatase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 69.614773 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MADFAGPSSA GRKAGAPRCS RKAAGTKQTS TLKQEDASKR KAELEAAVRK KIEFERKALH IVEQLLEENI TEEFLMECGR FITPAHYSD VVDERSIVKL CGYPLCQKKL GIVPKQKYKI STKTNKVYDI TERKSFCSNF CYQASKFFEA QIPKTPVWVR E EERHPDFQ ...String:
MADFAGPSSA GRKAGAPRCS RKAAGTKQTS TLKQEDASKR KAELEAAVRK KIEFERKALH IVEQLLEENI TEEFLMECGR FITPAHYSD VVDERSIVKL CGYPLCQKKL GIVPKQKYKI STKTNKVYDI TERKSFCSNF CYQASKFFEA QIPKTPVWVR E EERHPDFQ LLKEEQSGHS GEEVQLCSKA IKTSDIDNPS HFEKQYESSS SSTHSDSSSD NEQDFVSSIL PGNRPNSTNI RP QLHQKSI MKKKAGHKAN SKHKDKEQTV VDVTEQLGDC KLDSQEKDAT CELPLQKVNT QSSSNSTLPE RLKASENSES EYS RSEITL VGISKKSAEH FKRKFAKSNQ VSRSVSSSVQ VCPEVGKRNL LKVLKETLIE WKTEETLRFL YGQNYASVCL KPEA SLVKE ELDEDDIISD PDSHFPAWRE SQNSLDESLP FRGSGTAIKP LPSYENLKKE TEKLNLRIRE FYRGRYVLGE ETTKS QDSE EHDSTFPLID SSSQNQIRKR IVLEKLSKVL PGLLVPLQIT LGDIYTQLKN LVRTFRLTNR NIIHKPAEWT LIAMVL LSL LTPILGIQKH SQEGMVFTRF LDTLLEELHL KNEDLESLTI IFRTSCLPE

UniProtKB: Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2

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Macromolecule #15: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 15 / Number of copies: 6 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 39.91 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.94 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 47505
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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