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Yorodumi- EMDB-56566: Cryo-EM structure of the human holo-TFIIH-XPC complex bound to bu... -
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Basic information
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| Title | Cryo-EM structure of the human holo-TFIIH-XPC complex bound to bulky lesion-mimic DNA (consensus map) | |||||||||
Map data | Post-processed, filtered cryo-EM map used for coordinate refinement | |||||||||
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Keywords | Nucleotide excision repair / DNA Repair / helicase / transcription factor / DNA BINDING PROTEIN | |||||||||
| Function / homology | Function and homology informationheteroduplex DNA loop binding / nucleotide-excision repair factor 2 complex / XPC complex / nucleotide-excision repair complex / MMXD complex / core TFIIH complex portion of holo TFIIH complex / photoreceptor connecting cilium / regulation of proteasomal ubiquitin-dependent protein catabolic process / DNA damage sensor activity / Cytosolic iron-sulfur cluster assembly ...heteroduplex DNA loop binding / nucleotide-excision repair factor 2 complex / XPC complex / nucleotide-excision repair complex / MMXD complex / core TFIIH complex portion of holo TFIIH complex / photoreceptor connecting cilium / regulation of proteasomal ubiquitin-dependent protein catabolic process / DNA damage sensor activity / Cytosolic iron-sulfur cluster assembly / heterotrimeric G-protein binding / transcription export complex 2 / positive regulation of mitotic recombination / hair cell differentiation / response to auditory stimulus / nucleotide-excision repair factor 3 complex / histone H4K20 demethylase activity / nucleotide-excision repair, preincision complex assembly / transcription factor TFIIK complex / nuclear pore nuclear basket / CAK-ERCC2 complex / bubble DNA binding / Oxidoreductases; Acting on paired donors, with incorporation or reduction of molecular oxygen; With 2-oxoglutarate as one donor, and incorporation of one atom of oxygen into each donor / regulation of cyclin-dependent protein serine/threonine kinase activity / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / cyclin-dependent protein serine/threonine kinase activator activity / G protein-coupled receptor internalization / DNA 5'-3' helicase / nuclear thyroid hormone receptor binding / transcription preinitiation complex / sperm principal piece / RNA Polymerase I Transcription Termination / embryonic organ development / UV-damage excision repair / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / 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 / 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 / centriole replication / proteasome binding / DNA topological change / RNA Polymerase I Transcription Initiation / response to UV / DNA 3'-5' helicase / 3'-5' DNA helicase activity / polyubiquitin modification-dependent protein binding / Tat-mediated elongation of the HIV-1 transcript / Cyclin E associated events during G1/S transition / Formation of HIV-1 elongation complex containing HIV-1 Tat / mismatch repair / SUMOylation of DNA damage response and repair proteins / Cyclin A:Cdk2-associated events at S phase entry / Formation of HIV elongation complex in the absence of HIV Tat / hormone-mediated signaling pathway / mRNA export from nucleus / Cyclin A/B1/B2 associated events during G2/M transition / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / regulation of G1/S transition of mitotic cell cycle / proteasome complex / transcription by RNA polymerase I / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / RNA Polymerase II Pre-transcription Events / Recruitment of mitotic centrosome proteins and complexes / centriole / Recruitment of NuMA to mitotic centrosomes / positive regulation of smooth muscle cell proliferation / Anchoring of the basal body to the plasma membrane / transcription-coupled nucleotide-excision repair / sperm midpiece / AURKA Activation by TPX2 / DNA helicase activity / regulation of cytokinesis / site of DNA damage / Josephin domain DUBs / TP53 Regulates Transcription of DNA Repair Genes / G1/S transition of mitotic cell cycle / ubiquitin binding / chromosome segregation / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / promoter-specific chromatin binding / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase II promoter / nucleotide-excision repair / transcription elongation by RNA polymerase II / microtubule cytoskeleton organization Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / synthetic construct (others) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.91 Å | |||||||||
Authors | de Martin Garrido N / Haste CAF / Feng J / Cronin NB / Greber BJ | |||||||||
| Funding support | United Kingdom, 1 items
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Citation | Journal: Sci Adv / Year: 2026Title: Visualization of stepwise derepression of TFIIH in global genome nucleotide excision repair. Authors: Natàlia de Martín Garrido / Callum A F Haste / Junjie Feng / Nora B Cronin / Basil J Greber / ![]() Abstract: Nucleotide excision repair (NER) is a crucial DNA repair pathway that is orchestrated by transcription factor IIH (TFIIH) in eukaryotic cells. TFIIH is a multifunctional complex that contains two DNA ...Nucleotide excision repair (NER) is a crucial DNA repair pathway that is orchestrated by transcription factor IIH (TFIIH) in eukaryotic cells. TFIIH is a multifunctional complex that contains two DNA helicase/DNA translocase subunits and a kinase module, different subsets of which act in NER, transcription initiation, and cell cycle control. To ensure fidelity despite multifunctionality, the DNA helicase activity of TFIIH is autoinhibited in its free form or when the factor engages in transcription initiation. While the release of the kinase module has been identified as a key step in TFIIH activation, the molecular mechanisms controlling this step and concomitant structural changes in TFIIH are incompletely understood. Here, we determine high-resolution structures of three NER intermediates that visualize how TFIIH arrives at sites of DNA damage in an autoinhibited state and how autoinhibition is released via previously undescribed intermediates. These findings contribute to a mechanistic understanding of human DNA repair. | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_56566.map.gz | 78.6 MB | EMDB map data format | |
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| Header (meta data) | emd-56566-v30.xml emd-56566.xml | 42.7 KB 42.7 KB | Display Display | EMDB header |
| Images | emd_56566.png | 103 KB | ||
| Masks | emd_56566_msk_1.map | 83.7 MB | Mask map | |
| Filedesc metadata | emd-56566.cif.gz | 11.4 KB | ||
| Others | emd_56566_half_map_1.map.gz emd_56566_half_map_2.map.gz | 65.5 MB 65.5 MB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-56566 ftp://data.pdbj.org/pub/emdb/structures/EMD-56566 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 28jvMC ![]() 28jmC ![]() 28jsC ![]() 28keC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_56566.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Post-processed, filtered cryo-EM map used for coordinate refinement | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.34 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Mask #1
| File | emd_56566_msk_1.map | ||||||||||||
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| Density Histograms |
-Half map: Unfiltered, unsharpened cryo-EM half-map
| File | emd_56566_half_map_1.map | ||||||||||||
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| Annotation | Unfiltered, unsharpened cryo-EM half-map | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Unfiltered, unsharpened cryo-EM half-map
| File | emd_56566_half_map_2.map | ||||||||||||
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| Annotation | Unfiltered, unsharpened cryo-EM half-map | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
+Entire : Human holo-TFIIH, XPC complex, and XPA with biotinylated DNA.
+Supramolecule #1: Human holo-TFIIH, XPC complex, and XPA with biotinylated DNA.
+Macromolecule #1: General transcription and DNA repair factor IIH helicase subunit XPB
+Macromolecule #2: TFIIH basal transcription factor complex helicase XPD subunit
+Macromolecule #3: General transcription factor IIH subunit 1
+Macromolecule #4: General transcription factor IIH subunit 4
+Macromolecule #5: General transcription factor IIH subunit 2
+Macromolecule #6: General transcription factor IIH subunit 3
+Macromolecule #7: General transcription factor IIH subunit 5
+Macromolecule #8: CDK-activating kinase assembly factor MAT1
+Macromolecule #9: DNA repair protein complementing XP-C cells
+Macromolecule #10: Lysine-specific demethylase RAD23B
+Macromolecule #11: Centrin-2
+Macromolecule #12: DNA (Cy5)
+Macromolecule #13: DNA (biotinylated)
+Macromolecule #14: IRON/SULFUR CLUSTER
+Macromolecule #15: ZINC ION
+Macromolecule #16: CALCIUM ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.16 mg/mL | |||||||||||||||||||||
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| Buffer | pH: 7.5 Component:
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| Grid | Model: Quantifoil R2/2 / Material: GOLD / Mesh: 300 / Details: Streptavidin affinity support grid | |||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 293.15 K / Instrument: LEICA EM GP / Details: Leica EM GP2. |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 60.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 165000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United Kingdom, 1 items
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Processing
FIELD EMISSION GUN

