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Open data
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Basic information
Entry | Database: PDB / ID: 5of4 | |||||||||
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Title | The cryo-EM structure of human TFIIH | |||||||||
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![]() | TRANSCRIPTION / transcription initiation / DNA repair / multiprotein complex / kinase / helicase | |||||||||
Function / homology | ![]() core TFIIH complex portion of holo TFIIH complex / MMXD complex / Cytosolic iron-sulfur cluster assembly / nucleotide-excision repair, DNA duplex unwinding / central nervous system myelin formation / positive regulation of mitotic recombination / hair follicle maturation / hair cell differentiation / nucleotide-excision repair factor 3 complex / nucleotide-excision repair, preincision complex assembly ...core TFIIH complex portion of holo TFIIH complex / MMXD complex / Cytosolic iron-sulfur cluster assembly / nucleotide-excision repair, DNA duplex unwinding / central nervous system myelin formation / positive regulation of mitotic recombination / hair follicle maturation / hair cell differentiation / nucleotide-excision repair factor 3 complex / nucleotide-excision repair, preincision complex assembly / CAK-ERCC2 complex / UV protection / embryonic cleavage / G protein-coupled receptor internalization / DNA 3'-5' helicase / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / transcription preinitiation complex / RNA Polymerase I Transcription Termination / regulation of mitotic cell cycle phase transition / hematopoietic stem cell proliferation / spinal cord development / 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 / bone mineralization / 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 / erythrocyte maturation / 3'-5' DNA helicase activity / RNA Polymerase I Transcription Initiation / DNA topological change / ATPase activator activity / transcription factor TFIID complex / intrinsic apoptotic signaling pathway by p53 class mediator / RNA polymerase II general transcription initiation factor activity / hematopoietic stem cell differentiation / transcription elongation by RNA polymerase I / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / embryonic organ development / transcription-coupled nucleotide-excision repair / Formation of HIV elongation complex in the absence of HIV Tat / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / response to UV / DNA helicase activity / RNA Polymerase II Pre-transcription Events / extracellular matrix organization / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / insulin-like growth factor receptor signaling pathway / post-embryonic development / chromosome segregation / transcription elongation by RNA polymerase II / determination of adult lifespan / promoter-specific chromatin binding / nucleotide-excision repair / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / NoRC negatively regulates rRNA expression / protein localization / multicellular organism growth / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / cellular response to gamma radiation / Formation of TC-NER Pre-Incision Complex / Formation of Incision Complex in GG-NER / spindle / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / protein-macromolecule adaptor activity / 4 iron, 4 sulfur cluster binding / 5'-3' DNA helicase activity / double-stranded DNA binding / DNA helicase / in utero embryonic development / response to oxidative stress / transcription by RNA polymerase II / damaged DNA binding / response to hypoxia / nuclear speck / positive regulation of apoptotic process / DNA repair / apoptotic process / regulation of DNA-templated transcription / nucleolus / regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / zinc ion binding / nucleoplasm / ATP binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | |||||||||
![]() | Greber, B.J. / Nguyen, T.H.D. / Fang, J. / Afonine, P.V. / Adams, P.D. / Nogales, E. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: The cryo-electron microscopy structure of human transcription factor IIH. Authors: Basil J Greber / Thi Hoang Duong Nguyen / Jie Fang / Pavel V Afonine / Paul D Adams / Eva Nogales / ![]() Abstract: Human transcription factor IIH (TFIIH) is part of the general transcriptional machinery required by RNA polymerase II for the initiation of eukaryotic gene transcription. Composed of ten subunits ...Human transcription factor IIH (TFIIH) is part of the general transcriptional machinery required by RNA polymerase II for the initiation of eukaryotic gene transcription. Composed of ten subunits that add up to a molecular mass of about 500 kDa, TFIIH is also essential for nucleotide excision repair. The seven-subunit TFIIH core complex formed by XPB, XPD, p62, p52, p44, p34, and p8 is competent for DNA repair, while the CDK-activating kinase subcomplex, which includes the kinase activity of CDK7 as well as the cyclin H and MAT1 subunits, is additionally required for transcription initiation. Mutations in the TFIIH subunits XPB, XPD, and p8 lead to severe premature ageing and cancer propensity in the genetic diseases xeroderma pigmentosum, Cockayne syndrome, and trichothiodystrophy, highlighting the importance of TFIIH for cellular physiology. Here we present the cryo-electron microscopy structure of human TFIIH at 4.4 Å resolution. The structure reveals the molecular architecture of the TFIIH core complex, the detailed structures of its constituent XPB and XPD ATPases, and how the core and kinase subcomplexes of TFIIH are connected. Additionally, our structure provides insight into the conformational dynamics of TFIIH and the regulation of its activity. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 458.9 KB | Display | ![]() |
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PDB format | ![]() | 356.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 67.3 KB | Display | |
Data in CIF | ![]() | 103.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3802MC ![]() 8816C ![]() 8817C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-TFIIH basal transcription factor complex helicase ... , 2 types, 2 molecules AB
#1: Protein | Mass: 62426.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#2: Protein | Mass: 87021.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-General transcription factor IIH subunit ... , 4 types, 4 molecules DEFG
#3: Protein | Mass: 9875.401 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#4: Protein | Mass: 44481.996 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#5: Protein | Mass: 34416.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#6: Protein | Mass: 8060.362 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 2 types, 2 molecules HZ
#7: Protein | Mass: 10571.022 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: Sequence register unassigned. / Source: (natural) ![]() |
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#8: Protein | Mass: 22996.232 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: Sequence unassigned. / Source: (natural) ![]() |
-Unassigned secondary structure elements ... , 2 types, 2 molecules YX
#9: Protein | Mass: 19762.281 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: Sequence unassigned / Source: (natural) ![]() |
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#10: Protein | Mass: 6656.196 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 1 types, 1 molecules ![](data/chem/img/SF4.gif)
#11: Chemical | ChemComp-SF4 / |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight |
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Source (natural) |
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Buffer solution | pH: 7.8 | ||||||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.0049 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Natively purified complex at approx. 10 nM concentration | ||||||||||||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: C-flat-4/2 | ||||||||||||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 278.15 K / Details: 3-4 minute incubation, 2 second blot |
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Electron microscopy imaging
Microscopy | Model: FEI TITAN |
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Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Calibrated magnification: 37879 X / Nominal defocus max: 4500 nm / Nominal defocus min: 2000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER |
Image recording | Average exposure time: 8.7 sec. / Electron dose: 40 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 4 / Num. of real images: 8300 Details: 8300 micrographs collected in four session with identical acquisition settings. Sessions lasted 4, 2, 4, and 4 days and yielded 1200, 1700, 2800, and 2600 micrographs. |
Image scans | Sampling size: 5 µm / Width: 3840 / Height: 3710 / Movie frames/image: 30 / Used frames/image: 1-30 |
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Processing
Software | Name: REFMAC / Version: 5.8.0158 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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Image processing | Details: Micrographs were inspected for quality of Thon rings and ice contamination. Poor micrographs were rejected. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTF correction | Details: Correction in RELION based on values determined in CTFFIND4. Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1500000 Details: Initial rounds of particle selection using DogPicker within APPION to generate templates for subsequent RELION autopicking. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 122900 / Algorithm: FOURIER SPACE / Details: RELION 3D auto-refinement (gold standard). / Num. of class averages: 3 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL Details: Initial model assembled from high-resolution structures and homology models. Subsequently rebuilt in O and COOT, refined into the cryo-EM map using PHENIX and REFMAC, and fully validated. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 4.4→166.32 Å / Cor.coef. Fo:Fc: 0.939 / SU B: 54.849 / SU ML: 0.668 / ESU R: 1.679 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 193.578 Å2
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Refinement step | Cycle: 1 / Total: 17200 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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