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- EMDB-8773: Pol I local refinement from Pol I Initial Transcribing Complex at... -

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Basic information

Entry
Database: EMDB / ID: EMD-8773
TitlePol I local refinement from Pol I Initial Transcribing Complex at 3.7 angstrom
Map data
SamplePol I local refinement from RNA Polymerase I Initial Transcribing Complex
  • (DNA-directed RNA polymerase I subunit ...Polymerase) x 7
  • (DNA-directed RNA polymerases I and III subunit ...) x 2
  • (DNA-directed RNA polymerases I, II, and III subunit ...RNA polymerase) x 5
  • (nucleic-acidNucleic acid) x 3
Function / homology
Function and homology information


mRNA Capping / Gap-filling DNA repair synthesis and ligation in TC-NER / Dual incision in TC-NER / Formation of TC-NER Pre-Incision Complex / RNA Polymerase II Pre-transcription Events / Formation of the Early Elongation Complex / RNA polymerase II transcribes snRNA genes / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase II Promoter Escape ...mRNA Capping / Gap-filling DNA repair synthesis and ligation in TC-NER / Dual incision in TC-NER / Formation of TC-NER Pre-Incision Complex / RNA Polymerase II Pre-transcription Events / Formation of the Early Elongation Complex / RNA polymerase II transcribes snRNA genes / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / TP53 Regulates Transcription of DNA Repair Genes / RNA polymerase I preinitiation complex assembly / RNA polymerase II-specific DNA-binding transcription factor binding / nucleolar large rRNA transcription by RNA polymerase I / transposon integration / transcription elongation from RNA polymerase I promoter / termination of RNA polymerase I transcription / termination of RNA polymerase III transcription / regulation of cell size / RNA polymerase I activity / tRNA transcription by RNA polymerase III / mRNA cleavage / RNA polymerase I complex / RNA polymerase III complex / RNA polymerase II, core complex / transcription, RNA-templated / transcription by RNA polymerase I / transcription by RNA polymerase III / ribonucleoside binding / promoter-specific chromatin binding / DNA-directed RNA polymerase / ribosome biogenesis / transcription by RNA polymerase II / nucleic acid binding / protein dimerization activity / nucleolus / negative regulation of transcription by RNA polymerase II / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm
RPB6/omega subunit-like superfamily / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase Rpb6 / RNA polymerase Rpb5, C-terminal domain / Transcription factor S-II (TFIIS) / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb2, domain 6 / RNA polymerase Rpb1, domain 3 superfamily / Rpa43, N-terminal ribonucleoprotein (RNP) domain ...RPB6/omega subunit-like superfamily / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase Rpb6 / RNA polymerase Rpb5, C-terminal domain / Transcription factor S-II (TFIIS) / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb2, domain 6 / RNA polymerase Rpb1, domain 3 superfamily / Rpa43, N-terminal ribonucleoprotein (RNP) domain / RPA43, OB domain / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerase subunit Rpb5-like / RNA polymerase Rpb1, funnel domain superfamily / RNA polymerase Rpb2, domain 2 superfamily / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily / RNA polymerase Rpb5, N-terminal domain superfamily / RNA polymerases N / 8 kDa subunit / DNA-directed RNA polymerase, insert domain superfamily / RNA polymerase, RBP11-like subunit / RPB5-like RNA polymerase subunit superfamily / Pol I subunit A12, C-terminal zinc ribbon / DNA-directed RNA polymerases I and III subunit AC40 / DNA-directed RNA polymerases I and III subunit AC19 / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / DNA-directed RNA polymerase, subunit RPB6 / RNA polymerase subunit RPB10 / RNA polymerases, subunit N, zinc binding site / DNA-directed RNA polymerase, 14-18kDa subunit, conserved site / Archaeal RpoH /eukaryotic RPB5 RNA polymerase subunit / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases M/15 Kd subunit / DNA-directed RNA polymerase, subunit 2 / RPA43 OB domain in RNA Pol I / Zinc finger TFIIS-type profile. / RNA polymerases beta chain signature. / RNA polymerases L / 13 to 16 Kd subunits signature. / RNA polymerases N / 8 Kd subunits signature. / RNA polymerases K / 14 to 18 Kd subunits signature. / RNA polymerases H / 23 Kd subunits signature. / RNA polymerases M / 15 Kd subunits signature. / Zinc finger TFIIS-type signature. / RNA polymerases D / 30 to 40 Kd subunits signature. / RNA polymerase Rpb3/Rpb11 dimerisation domain / DNA directed RNA polymerase, 7 kDa subunit / RNA polymerase Rpb2, domain 3 / RNA polymerase Rpb8 / RNA polymerase Rpb5, N-terminal domain / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 2 / RNA polymerase beta subunit / RNA polymerase Rpb1, domain 3 / DNA-directed RNA polymerase I subunit RPA34.5 / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / A49-like RNA polymerase I associated factor / RNA polymerase I, Rpa2 specific domain / Yeast RNA polymerase I subunit RPA14 / DNA-directed RNA polymerase M, 15kDa subunit, conserved site / DNA-directed RNA pol I, largest subunit / DNA-directed RNA polymerase, subunit N/Rpb10 / RNA polymerase, subunit omega/K/RPB6 / RNA polymerase Rpb7-like , N-terminal / RNA polymerase, Rpb5, N-terminal / RNA polymerase, Rpb8 / DNA-directed RNA polymerase, M/15kDa subunit / DNA-directed RNA polymerase, 30-40kDa subunit, conserved site / Zinc finger, TFIIS-type / RNA polymerase Rpb2, OB-fold / RNA polymerase, alpha subunit / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / Archaeal RpoK/eukaryotic RPB6 RNA polymerase subunit / RNA polymerase, subunit H/Rpb5 C-terminal / RNA polymerase, N-terminal / DNA-directed RNA polymerase, RBP11-like dimerisation domain / DNA-directed RNA polymerase RPB5 subunit, eukaryote/virus / DNA-directed RNA polymerase I, subunit RPA34.5 / RNA polymerase I, subunit Rpa14, fungi / Nucleic acid-binding, OB-fold / RNA polymerase subunit, RPB6/omega / DNA-directed RNA polymerase subunit/transcription factor S / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / DNA-directed RNA polymerase, insert domain / RNA polymerase Rpb1, domain 3 / DNA-directed RNA polymerase I subunit RPA2, domain 4 / RNA polymerase I associated factor, A49-like / RNA polymerase Rpb1, domain 1 / DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb2, domain 3 / RNA polymerase, beta subunit, protrusion / RNA polymerase Rpb1, domain 4 / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain / RNA polymerase, beta subunit, conserved site / RNA polymerase Rpb2, domain 2 / RNA polymerase Rpb2, domain 7
DNA-directed RNA polymerases I and III subunit RPAC2 / DNA-directed RNA polymerase I subunit RPA14 / DNA-directed RNA polymerase I subunit RPA34 / DNA-directed RNA polymerase I subunit RPA43 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerase I subunit RPA12 / DNA-directed RNA polymerase I subunit RPA190 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase I subunit RPA135 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 ...DNA-directed RNA polymerases I and III subunit RPAC2 / DNA-directed RNA polymerase I subunit RPA14 / DNA-directed RNA polymerase I subunit RPA34 / DNA-directed RNA polymerase I subunit RPA43 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerase I subunit RPA12 / DNA-directed RNA polymerase I subunit RPA190 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase I subunit RPA135 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerases I and III subunit RPAC1 / DNA-directed RNA polymerase I subunit RPA49
Biological speciesSaccharomyces cerevisiae S288c (yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsHan Y / He Y
CitationJournal: Elife / Year: 2017
Title: Structural mechanism of ATP-independent transcription initiation by RNA polymerase I.
Authors: Yan Han / Chunli Yan / Thi Hoang Duong Nguyen / Ashleigh J Jackobel / Ivaylo Ivanov / Bruce A Knutson / Yuan He /
Abstract: Transcription initiation by RNA Polymerase I (Pol I) depends on the Core Factor (CF) complex to recognize the upstream promoter and assemble into a Pre-Initiation Complex (PIC). Here, we solve a ...Transcription initiation by RNA Polymerase I (Pol I) depends on the Core Factor (CF) complex to recognize the upstream promoter and assemble into a Pre-Initiation Complex (PIC). Here, we solve a structure of Pol I-CF-DNA to 3.8 Å resolution using single-particle cryo-electron microscopy. The structure reveals a bipartite architecture of Core Factor and its recognition of the promoter from -27 to -16. Core Factor's intrinsic mobility correlates well with different conformational states of the Pol I cleft, in addition to the stabilization of either Rrn7 N-terminal domain near Pol I wall or the tandem winged helix domain of A49 at a partially overlapping location. Comparison of the three states in this study with the Pol II system suggests that a ratchet motion of the Core Factor-DNA sub-complex at upstream facilitates promoter melting in an ATP-independent manner, distinct from a DNA translocase actively threading the downstream DNA in the Pol II PIC.
History
DepositionJun 16, 2017-
Header (metadata) releaseJul 5, 2017-
Map releaseJul 5, 2017-
UpdateJul 18, 2018-
Current statusJul 18, 2018Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.05
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 0.05
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_8773.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.3 Å/pix.
x 192 pix.
= 249.6 Å
1.3 Å/pix.
x 192 pix.
= 249.6 Å
1.3 Å/pix.
x 192 pix.
= 249.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.3 Å
Density
Contour LevelBy AUTHOR: 0.05 / Movie #1: 0.05
Minimum - Maximum-0.18127728 - 0.32581496
Average (Standard dev.)0.0016644284 (±0.013952475)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions192192192
Spacing192192192
CellA=B=C: 249.59999 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.31.31.3
M x/y/z192192192
origin x/y/z0.0000.0000.000
length x/y/z249.600249.600249.600
α/β/γ90.00090.00090.000
start NX/NY/NZ-152-37
NX/NY/NZ998271
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS192192192
D min/max/mean-0.1810.3260.002

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Supplemental data

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Sample components

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Entire Pol I local refinement from RNA Polymerase I Initial Transcribing...

EntireName: Pol I local refinement from RNA Polymerase I Initial Transcribing Complex
Number of components: 18

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Component #1: protein, Pol I local refinement from RNA Polymerase I Initial Tra...

ProteinName: Pol I local refinement from RNA Polymerase I Initial Transcribing Complex
Recombinant expression: No
MassTheoretical: 700 kDa
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #2: protein, DNA-directed RNA polymerase I subunit RPA190

ProteinName: DNA-directed RNA polymerase I subunit RPA190Polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #3: protein, DNA-directed RNA polymerase I subunit RPA135

ProteinName: DNA-directed RNA polymerase I subunit RPA135Polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #4: protein, DNA-directed RNA polymerases I and III subunit RPAC1

ProteinName: DNA-directed RNA polymerases I and III subunit RPAC1 / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #5: protein, DNA-directed RNA polymerase I subunit RPA14

ProteinName: DNA-directed RNA polymerase I subunit RPA14Polymerase / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #6: protein, DNA-directed RNA polymerases I, II, and III subunit RPABC1

ProteinName: DNA-directed RNA polymerases I, II, and III subunit RPABC1RNA polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #7: protein, DNA-directed RNA polymerases I, II, and III subunit RPABC2

ProteinName: DNA-directed RNA polymerases I, II, and III subunit RPABC2RNA polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #8: protein, DNA-directed RNA polymerase I subunit RPA43

ProteinName: DNA-directed RNA polymerase I subunit RPA43Polymerase / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #9: protein, DNA-directed RNA polymerases I, II, and III subunit RPABC3

ProteinName: DNA-directed RNA polymerases I, II, and III subunit RPABC3RNA polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #10: protein, DNA-directed RNA polymerase I subunit RPA12

ProteinName: DNA-directed RNA polymerase I subunit RPA12Polymerase / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #11: protein, DNA-directed RNA polymerases I, II, and III subunit RPABC5

ProteinName: DNA-directed RNA polymerases I, II, and III subunit RPABC5RNA polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #12: protein, DNA-directed RNA polymerases I and III subunit RPAC2

ProteinName: DNA-directed RNA polymerases I and III subunit RPAC2 / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #13: protein, DNA-directed RNA polymerases I, II, and III subunit RPABC4

ProteinName: DNA-directed RNA polymerases I, II, and III subunit RPABC4RNA polymerase
Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #14: protein, DNA-directed RNA polymerase I subunit RPA49

ProteinName: DNA-directed RNA polymerase I subunit RPA49Polymerase / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #15: protein, DNA-directed RNA polymerase I subunit RPA34

ProteinName: DNA-directed RNA polymerase I subunit RPA34Polymerase / Recombinant expression: No
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #16: nucleic-acid, non-template strand DNA

nucleic acidName: non-template strand DNA / Class: DNA / Structure: OTHER / Synthetic: No
Sequence:
CAAGTGTGAG GAAAAGTAGT TGGGTTTTTT TTTTTTTTTT TGCAGTTGAA GACA
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #17: nucleic-acid, template strand DNA

nucleic acidName: template strand DNA / Class: DNA / Structure: OTHER / Synthetic: No
Sequence:
TGTCTTCAAC TGCTTTCGCA TGAAGTACCT CCCAACTACT TTTCCTCACA CTTG
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Component #18: nucleic-acid, RNA

nucleic acidName: RNA / Class: RNA / Structure: OTHER / Synthetic: No
Sequence:
AUGCGA
SourceSpecies: Saccharomyces cerevisiae S288c (yeast)

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Experimental details

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Sample preparation

SpecimenSpecimen state: Particle / Method: cryo EM
Sample solutionpH: 7.6
VitrificationCryogen name: ETHANE / Temperature: 277 K / Humidity: 100 %

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
ImagingMicroscope: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Electron dose: 56.8 e/Å2 / Illumination mode: FLOOD BEAM
LensMagnification: 22500. X (nominal) / Cs: 2.7 mm / Imaging mode: BRIGHT FIELD
Specimen HolderModel: FEI TITAN KRIOS AUTOGRID HOLDER
CameraDetector: GATAN K2 SUMMIT (4k x 4k)

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Image processing

ProcessingMethod: single particle reconstruction / Applied symmetry: C1 (asymmetric) / Number of projections: 124112
3D reconstructionCTF correction: CTF amplitude correction was performed following 3D auto refinement in relion.
Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF
FSC plot (resolution estimation)

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Atomic model buiding

Modeling #1Refinement space: REAL

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