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Yorodumi- EMDB-11828: 3-Angstrom resolution cryo-EM map of CDK-activating kinase from 5... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11828 | |||||||||
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Title | 3-Angstrom resolution cryo-EM map of CDK-activating kinase from 5000 particles | |||||||||
Map data | Postprocessed (sharpened, filtered) map, box cropped to 128 x 128 x 128 pixels | |||||||||
Sample |
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Function / homology | Function and homology information negative regulation of DNA helicase activity / ventricular system development / cyclin-dependent protein kinase activating kinase holoenzyme complex / snRNA transcription by RNA polymerase II / CAK-ERCC2 complex / transcription factor TFIIK complex / adult heart development / transcription factor TFIIH holo complex / transcription factor TFIIH core complex / cyclin-dependent protein serine/threonine kinase activator activity ...negative regulation of DNA helicase activity / ventricular system development / cyclin-dependent protein kinase activating kinase holoenzyme complex / snRNA transcription by RNA polymerase II / CAK-ERCC2 complex / transcription factor TFIIK complex / adult heart development / transcription factor TFIIH holo complex / transcription factor TFIIH core complex / cyclin-dependent protein serine/threonine kinase activator activity / [RNA-polymerase]-subunit kinase / RNA Polymerase I Transcription Termination / cyclin-dependent protein serine/threonine kinase regulator activity / 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 / regulation of cyclin-dependent protein serine/threonine kinase activity / regulation of G1/S transition of mitotic cell cycle / RNA Polymerase I Transcription Initiation / RNA polymerase II transcribes snRNA genes / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / ATP-dependent activity, acting on DNA / cyclin-dependent kinase / Formation of HIV elongation complex in the absence of HIV Tat / cyclin-dependent protein serine/threonine kinase activity / 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 / Cyclin A:Cdk2-associated events at S phase entry / RNA Polymerase II Pre-transcription Events / RNA polymerase II CTD heptapeptide repeat kinase activity / male germ cell nucleus / transcription initiation at RNA polymerase II promoter / nucleotide-excision repair / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / positive regulation of smooth muscle cell proliferation / G1/S transition of mitotic cell cycle / NoRC negatively regulates rRNA expression / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / fibrillar center / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / response to calcium ion / Gap-filling DNA repair synthesis and ligation in TC-NER / Cyclin D associated events in G1 / RUNX1 regulates transcription of genes involved in differentiation of HSCs / protein-containing complex assembly / transcription by RNA polymerase II / protein stabilization / regulation of cell cycle / protein kinase activity / cell cycle / cell division / phosphorylation / DNA repair / protein serine kinase activity / protein serine/threonine kinase activity / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / perinuclear region of cytoplasm / positive regulation of transcription by RNA polymerase II / zinc ion binding / nucleoplasm / ATP binding / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Greber BJ / Remis J / Ali S / Nogales E | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Biophys J / Year: 2021 Title: 2.5 Å-resolution structure of human CDK-activating kinase bound to the clinical inhibitor ICEC0942. Authors: Basil J Greber / Jonathan Remis / Simak Ali / Eva Nogales / Abstract: The human CDK-activating kinase (CAK), composed of CDK7, cyclin H, and MAT1, is involved in the control of transcription initiation and the cell cycle. Because of these activities, it has been ...The human CDK-activating kinase (CAK), composed of CDK7, cyclin H, and MAT1, is involved in the control of transcription initiation and the cell cycle. Because of these activities, it has been identified as a promising target for cancer chemotherapy. A number of CDK7 inhibitors have entered clinical trials, among them ICEC0942 (also known as CT7001). Structural information can aid in improving the affinity and specificity of such drugs or drug candidates, reducing side effects in patients. Here, we have determined the structure of the human CAK in complex with ICEC0942 at 2.5 Å-resolution using cryogenic electron microscopy. Our structure reveals conformational differences of ICEC0942 compared with previous X-ray crystal structures of the CDK2-bound complex, and highlights the critical ability of cryogenic electron microscopy to resolve structures of drug-bound protein complexes without the need to crystalize the protein target. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_11828.map.gz | 7.4 MB | EMDB map data format | |
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Header (meta data) | emd-11828-v30.xml emd-11828.xml | 18.6 KB 18.6 KB | Display Display | EMDB header |
Images | emd_11828.png | 56.6 KB | ||
Masks | emd_11828_msk_1.map | 64 MB | Mask map | |
Others | emd_11828_half_map_1.map.gz emd_11828_half_map_2.map.gz | 49.8 MB 49.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11828 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11828 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_11828.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Postprocessed (sharpened, filtered) map, box cropped to 128 x 128 x 128 pixels | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.029 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_11828_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Unfiltered half-map from RELION 3.1.
File | emd_11828_half_map_1.map | ||||||||||||
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Annotation | Unfiltered half-map from RELION 3.1. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Unfiltered half-map from RELION 3.1.
File | emd_11828_half_map_2.map | ||||||||||||
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Annotation | Unfiltered half-map from RELION 3.1. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : CDK-activating kinase
Entire | Name: CDK-activating kinase |
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Components |
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-Supramolecule #1: CDK-activating kinase
Supramolecule | Name: CDK-activating kinase / type: complex / ID: 1 / Parent: 0 |
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Source (natural) | Organism: Homo sapiens (human) |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) / Recombinant strain: High5 |
Molecular weight | Theoretical: 120 KDa |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.2 mg/mL | ||||||||||||||||||
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Buffer | pH: 7.9 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV | ||||||||||||||||||
Details | Incubated with 50 uM inhibitor for 5 min |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 50.0 µm / Calibrated magnification: 72886 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Details | Automated procedure in SerialEM |
Image recording | #0 - Image recording ID: 1 / #0 - Film or detector model: GATAN K3 (6k x 4k) / #0 - Number grids imaged: 1 / #0 - Number real images: 3571 / #0 - Average exposure time: 2.0 sec. / #0 - Average electron dose: 69.0 e/Å2 #0 - Details: Movies (69 frames) acquired in 3 x 3 pattern by image shift #1 - Image recording ID: 2 / #1 - Film or detector model: GATAN K3 (6k x 4k) / #1 - Number grids imaged: 2 / #1 - Number real images: 5302 / #1 - Average exposure time: 2.0 sec. / #1 - Average electron dose: 69.0 e/Å2 #1 - Details: Movies (69 frames) acquired in 3 x 3 pattern by image shift |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
-Image processing
Particle selection | Number selected: 10904715 | ||||||
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CTF correction | Software:
Details: Implemented in RELION 3.1 | ||||||
Startup model | Type of model: EMDB MAP EMDB ID: | ||||||
Initial angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1) | ||||||
Final 3D classification | Number classes: 6 / Avg.num./class: 33300 / Software - Name: RELION (ver. 3.1) Details: High-resolution, masked, classification using 6 classes and a tau value of 72. | ||||||
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1) | ||||||
Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.1) Details: 5000 particles randomly selected from a single sub-class comprising 20,379 particles. Number images used: 5000 | ||||||
Image recording ID | 1 |