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Open data
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Basic information
Entry | Database: PDB / ID: 6o9m | ||||||
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Title | Structure of the human apo TFIIH | ||||||
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![]() | TRANSCRIPTION / Transcription initiation / Molecular dynamics / Gene regulation / Community network analysis / Global protein dynamics / RNA polymerase | ||||||
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 / ventricular system development / nucleotide-excision repair factor 3 complex ...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 / ventricular system development / nucleotide-excision repair factor 3 complex / cyclin-dependent protein kinase activating kinase holoenzyme complex / nucleotide-excision repair, preincision complex assembly / CAK-ERCC2 complex / transcription factor TFIIK complex / UV protection / embryonic cleavage / adult heart development / G protein-coupled receptor internalization / DNA 3'-5' helicase / transcription factor TFIIH core complex / cyclin-dependent protein serine/threonine kinase activator activity / transcription factor TFIIH holo complex / transcription preinitiation complex / RNA Polymerase I Transcription Termination / nuclear thyroid hormone receptor binding / regulation of mitotic cell cycle phase transition / hematopoietic stem cell proliferation / regulation of cyclin-dependent protein serine/threonine kinase activity / 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 / regulation of G1/S transition of mitotic cell cycle / 3'-5' DNA helicase activity / RNA Polymerase I Transcription Initiation / transcription by RNA polymerase I / 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 / Cyclin E associated events during G1/S transition / RNA Polymerase II Transcription Elongation / Cyclin A/B1/B2 associated events during G2/M transition / Formation of RNA Pol II elongation complex / response to UV / Cyclin A:Cdk2-associated events at S phase entry / DNA helicase activity / RNA Polymerase II Pre-transcription Events / hormone-mediated signaling pathway / 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 / positive regulation of smooth muscle cell proliferation / 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 / response to calcium ion / spindle / Dual incision in TC-NER / G1/S transition of mitotic cell cycle / Gap-filling DNA repair synthesis and ligation in TC-NER / Cyclin D associated events in G1 / protein-macromolecule adaptor activity / RUNX1 regulates transcription of genes involved in differentiation of HSCs / 4 iron, 4 sulfur cluster binding / 5'-3' DNA helicase activity / double-stranded DNA binding Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||
![]() | Yan, C.L. / Dodd, T. / He, Y. / Tainer, J.A. / Tsutakawa, S.E. / Ivanov, I. | ||||||
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
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 574.3 KB | Display | ![]() |
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PDB format | ![]() | 442.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 103.9 KB | Display | |
Data in CIF | ![]() | 153.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3802M ![]() 6o9lC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
-TFIIH basal transcription factor complex helicase ... , 2 types, 2 molecules 07
#1: Protein | Mass: 87021.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#8: Protein | Mass: 89404.734 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-General transcription factor IIH subunit ... , 5 types, 5 molecules 12456
#2: Protein | Mass: 62116.492 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#3: Protein | Mass: 52245.156 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) ![]() |
#7: Protein | Mass: 44481.996 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 1 types, 1 molecules 3
#4: Protein | Mass: 35873.965 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 2 types, 7 molecules ![](data/chem/img/SF4.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/ZN.gif)
#9: Chemical | ChemComp-SF4 / |
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#10: Chemical | ChemComp-ZN / |
-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
Component | Name: apo TFIIH / Type: COMPLEX / Entity ID: #1-#8 / Source: NATURAL |
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Source (natural) | Organism: ![]() |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid type: C-flat |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE |
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Electron microscopy imaging
Microscopy | Model: FEI TITAN |
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Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
EM software |
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CTF correction | Type: NONE | |||||||||||||||||||||||||
3D reconstruction | Resolution: 4.4 Å / Num. of particles: 122900 / Symmetry type: POINT | |||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL Details: Initial model assembled from high-resolution structures and homology models, subsequently rebuilt in COOT, refined into the Cryo-EM map using Phenix and fully validated. |