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- EMDB-12626: Focused refinement of XPD containing part of TFIIH in post-transl... -

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Basic information

Entry
Database: EMDB / ID: EMD-12626
TitleFocused refinement of XPD containing part of TFIIH in post-translocated state (with ADP-BeF3)
Map dataLocal resolution filtered and sharpened map
Sample
  • Complex: XPD containing part of TFIIH (with ADP-BeF3)
Function / homology
Function and homology information


core TFIIH complex portion of holo TFIIH complex / nucleotide-excision repair, DNA duplex unwinding / hair cell differentiation / nucleotide-excision repair factor 3 complex / transcription factor TFIIE complex / nucleotide-excision repair, preincision complex assembly / UV protection / transcription open complex formation at RNA polymerase II promoter / transcription factor TFIIH holo complex / transcription factor TFIIH core complex ...core TFIIH complex portion of holo TFIIH complex / nucleotide-excision repair, DNA duplex unwinding / hair cell differentiation / nucleotide-excision repair factor 3 complex / transcription factor TFIIE complex / nucleotide-excision repair, preincision complex assembly / UV protection / transcription open complex formation at RNA polymerase II promoter / transcription factor TFIIH holo complex / transcription factor TFIIH core complex / 3'-5' DNA helicase activity / transcription preinitiation complex / RNA Polymerase I Transcription Termination / regulation of mitotic cell cycle phase transition / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / RNA polymerase II general transcription initiation factor activity / transcription factor TFIID complex / 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 / ATPase activator activity / RNA Polymerase I Transcription Initiation / transcription elongation by RNA polymerase I / DNA topological change / RNA polymerase II transcribes snRNA genes / transcription-coupled nucleotide-excision repair / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / embryonic organ development / Formation of HIV elongation complex in the absence of HIV Tat / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to UV / RNA Polymerase II Pre-transcription Events / promoter-specific chromatin binding / transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / nucleotide-excision repair / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / cellular response to gamma radiation / NoRC negatively regulates rRNA expression / protein localization / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / double-stranded DNA binding / DNA helicase / response to oxidative stress / transcription by RNA polymerase II / damaged DNA binding / response to hypoxia / molecular adaptor activity / nuclear speck / positive regulation of apoptotic process / DNA repair / apoptotic process / nucleolus / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / metal ion binding / nucleus / cytosol / cytoplasm
Similarity search - Function
Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Helicase XPB/Ssl2 / ERCC3/RAD25/XPB helicase, C-terminal domain / Helicase XPB/Ssl2, N-terminal domain / Helicase conserved C-terminal domain / ERCC3/RAD25/XPB C-terminal helicase / Transcription factor TFIIH subunit p52/Tfb2 / Transcription factor Tfb2, C-terminal domain / Transcription factor Tfb2 ...Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Helicase XPB/Ssl2 / ERCC3/RAD25/XPB helicase, C-terminal domain / Helicase XPB/Ssl2, N-terminal domain / Helicase conserved C-terminal domain / ERCC3/RAD25/XPB C-terminal helicase / Transcription factor TFIIH subunit p52/Tfb2 / Transcription factor Tfb2, C-terminal domain / Transcription factor Tfb2 / Transcription factor Tfb2 (p52) C-terminal domain / TFIIH subunit TTDA/Tfb5 / TFB5-like superfamily / Transcription factor TFIIH complex subunit Tfb5 / Transcription factor TFIIH complex subunit Tfb5 / Transcription initiation factor IIE subunit alpha, N-terminal / Transcription factor TFE/TFIIEalpha HTH domain / TFIIEalpha/SarR/Rpc3 HTH domain / Transcription factor E / TFIIE alpha subunit / TFE/IIEalpha-type HTH domain profile. / Transcription initiation factor IIE / Zinc finger, TFIIB-type / TFIIB zinc-binding / Helicase/UvrB, N-terminal / Type III restriction enzyme, res subunit / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / Zinc finger, RING/FYVE/PHD-type / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
General transcription and DNA repair factor IIH helicase subunit XPB / General transcription factor IIE subunit 1 / General transcription factor IIH subunit 5 / General transcription factor IIH subunit 4
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.0 Å
AuthorsAibara S / Schilbach S / Cramer P
Funding support Germany, 5 items
OrganizationGrant numberCountry
H2020 Marie Curie Actions of the European Commission894862 Germany
German Research Foundation (DFG)EXC 2067/1 39072994 Germany
German Research Foundation (DFG)SFB860 Germany
German Research Foundation (DFG)SPP2191 Germany
European Research Council (ERC)882357 Germany
CitationJournal: Nature / Year: 2021
Title: Structures of mammalian RNA polymerase II pre-initiation complexes.
Authors: Shintaro Aibara / Sandra Schilbach / Patrick Cramer /
Abstract: The initiation of transcription is a focal point for the regulation of gene activity during mammalian cell differentiation and development. To initiate transcription, RNA polymerase II (Pol II) ...The initiation of transcription is a focal point for the regulation of gene activity during mammalian cell differentiation and development. To initiate transcription, RNA polymerase II (Pol II) assembles with general transcription factors into a pre-initiation complex (PIC) that opens promoter DNA. Previous work provided the molecular architecture of the yeast and human PIC and a topological model for DNA opening by the general transcription factor TFIIH. Here we report the high-resolution cryo-electron microscopy structure of PIC comprising human general factors and Sus scrofa domesticus Pol II, which is 99.9% identical to human Pol II. We determine the structures of PIC with closed and opened promoter DNA at 2.5-2.8 Å resolution, and resolve the structure of TFIIH at 2.9-4.0 Å resolution. We capture the TFIIH translocase XPB in the pre- and post-translocation states, and show that XPB induces and propagates a DNA twist to initiate the opening of DNA approximately 30 base pairs downstream of the TATA box. We also provide evidence that DNA opening occurs in two steps and leads to the detachment of TFIIH from the core PIC, which may stop DNA twisting and enable RNA chain initiation.
History
DepositionMar 16, 2021-
Header (metadata) releaseMay 5, 2021-
Map releaseMay 5, 2021-
UpdateJun 16, 2021-
Current statusJun 16, 2021Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 14
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 14
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_12626.png

Downloads & links

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Map

FileDownload / File: emd_12626.map.gz / Format: CCP4 / Size: 347.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationLocal resolution filtered and sharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesX (Sec.)Y (Row.)Z (Col.)
1.05 Å/pix.
x 450 pix.
= 472.5 Å		1.05 Å/pix.
x 450 pix.
= 472.5 Å		1.05 Å/pix.
x 450 pix.
= 472.5 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.05 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 14.0 / Movie #1: 14
Minimum - Maximum-50.83018 - 88.97995
Average (Standard dev.)-0.005186454 (±0.9379945)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions450450450
Spacing450450450
CellA=B=C: 472.49997 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.051.051.05
M x/y/z450450450
origin x/y/z0.0000.0000.000
length x/y/z472.500472.500472.500
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ450450450
MAP C/R/S321
start NC/NR/NS000
NC/NR/NS450450450
D min/max/mean-50.83088.980-0.005

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Supplemental data

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Mask #1

Fileemd_12626_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Local resolution filtered map, unsharpened

Fileemd_12626_additional_1.map
AnnotationLocal resolution filtered map, unsharpened
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Unfiltered half map 1

Fileemd_12626_half_map_1.map
AnnotationUnfiltered half map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Unfiltered half map 2

Fileemd_12626_half_map_2.map
AnnotationUnfiltered half map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : XPD containing part of TFIIH (with ADP-BeF3)

EntireName: XPD containing part of TFIIH (with ADP-BeF3)
Components
  • Complex: XPD containing part of TFIIH (with ADP-BeF3)

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Supramolecule #1: XPD containing part of TFIIH (with ADP-BeF3)

SupramoleculeName: XPD containing part of TFIIH (with ADP-BeF3) / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#22
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
Molecular weightTheoretical: 300 KDa

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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

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 43.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 4.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 399247
FSC plot (resolution estimation)

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