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Open data
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Basic information
Entry | Database: PDB / ID: 6cnd | |||||||||||||||||||||
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Title | Yeast RNA polymerase III natural open complex (nOC) | |||||||||||||||||||||
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![]() | transcription/dna / RNA polymerase III / TFIIIB / tRNA / TRANSCRIPTION / transcription-dna complex | |||||||||||||||||||||
Function / homology | ![]() RNA polymerase III core binding / TFIIA-class transcription factor complex binding / RNA polymerase III transcription regulatory region sequence-specific DNA binding / DNA-templated transcription open complex formation / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / TFIIIC-class transcription factor complex binding / RNA polymerase III type 3 promoter sequence-specific DNA binding / RNA polymerase I general transcription initiation factor binding / RNA polymerase III general transcription initiation factor activity ...RNA polymerase III core binding / TFIIA-class transcription factor complex binding / RNA polymerase III transcription regulatory region sequence-specific DNA binding / DNA-templated transcription open complex formation / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / TFIIIC-class transcription factor complex binding / RNA polymerase III type 3 promoter sequence-specific DNA binding / RNA polymerase I general transcription initiation factor binding / RNA polymerase III general transcription initiation factor activity / regulation of transcription by RNA polymerase III / transcription factor TFIIA complex / RNA polymerase I preinitiation complex assembly / transcription preinitiation complex / RNA Polymerase I Transcription Initiation / DNA binding, bending / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes / 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 / RNA-templated transcription / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / Formation of TC-NER Pre-Incision Complex / termination of RNA polymerase I transcription / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase III promoter / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / transcription by RNA polymerase I / Estrogen-dependent gene expression / transcription by RNA polymerase III / transcription factor TFIID complex / Dual incision in TC-NER / RNA polymerase II general transcription initiation factor activity / transcription elongation by RNA polymerase I / RNA polymerase II core promoter sequence-specific DNA binding / RNA polymerase I complex / RNA polymerase III complex / RNA polymerase III activity / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / RNA polymerase I activity / RNA polymerase II activity / RNA polymerase II preinitiation complex assembly / TBP-class protein binding / nucleotidyltransferase activity / DNA-templated transcription initiation / transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / peroxisome / disordered domain specific binding / ribosome biogenesis / single-stranded DNA binding / DNA-binding transcription factor binding / RNA polymerase II-specific DNA-binding transcription factor binding / transcription regulator complex / transcription by RNA polymerase II / nucleic acid binding / protein dimerization activity / nucleotide binding / negative regulation of DNA-templated transcription / chromatin binding / regulation of DNA-templated transcription / nucleolus / positive regulation of transcription by RNA polymerase II / protein-containing complex / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytoplasm / cytosol Similarity search - Function | |||||||||||||||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.8 Å | |||||||||||||||||||||
![]() | Han, Y. / He, Y. | |||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural visualization of RNA polymerase III transcription machineries. Authors: Yan Han / Chunli Yan / Susan Fishbain / Ivaylo Ivanov / Yuan He / ![]() Abstract: RNA polymerase III (Pol III) transcription initiation requires the action of the transcription factor IIIB (TFIIIB) and is highly regulated. Here, we determine the structures of Pol III pre- ...RNA polymerase III (Pol III) transcription initiation requires the action of the transcription factor IIIB (TFIIIB) and is highly regulated. Here, we determine the structures of Pol III pre-initiation complexes (PICs) using single particle cryo-electron microscopy (cryo-EM). We observe stable Pol III-TFIIIB complexes using nucleic acid scaffolds mimicking various functional states, in which TFIIIB tightly encircles the upstream promoter DNA. There is an intricate interaction between TFIIIB and Pol III, which stabilizes the winged-helix domains of the C34 subunit of Pol III over the active site cleft. The architecture of Pol III PIC more resembles that of the Pol II PIC than the Pol I PIC. In addition, we also obtain a 3D reconstruction of Pol III in complex with TFIIIB using the elongation complex (EC) scaffold, shedding light on the mechanism of facilitated recycling of Pol III prior to transcription re-initiation. | |||||||||||||||||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 1.1 MB | Display | ![]() |
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PDB format | ![]() | 838.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 995.1 KB | Display | ![]() |
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Full document | ![]() | 1.3 MB | Display | |
Data in XML | ![]() | 191.6 KB | Display | |
Data in CIF | ![]() | 286.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7532MC ![]() 7530C ![]() 7531C ![]() 7533C ![]() 7534C ![]() 6cnbC ![]() 6cncC ![]() 6cnfC 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
-DNA-directed RNA polymerase III subunit ... , 10 types, 10 molecules ABDGIMNOPQ
#1: Protein | Mass: 162517.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P04051, DNA-directed RNA polymerase |
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#2: Protein | Mass: 129629.383 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P22276, DNA-directed RNA polymerase |
#4: Protein | Mass: 18623.123 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P47076 |
#7: Protein | Mass: 24349.770 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P35718 |
#9: Protein | Mass: 12525.109 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: Q04307 |
#13: Protein | Mass: 32178.115 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P36121 |
#14: Protein | Mass: 46751.469 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P25441 |
#15: Protein | Mass: 74112.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P32349 |
#16: Protein | Mass: 36174.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P32910 |
#17: Protein | Mass: 27299.682 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P17890 |
-DNA-directed RNA polymerases I and III subunit ... , 2 types, 2 molecules CK
#3: Protein | Mass: 37732.613 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P07703 |
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#11: Protein | Mass: 16167.860 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P28000 |
-DNA-directed RNA polymerases I, II, and III subunit ... , 5 types, 5 molecules EFHJL
#5: Protein | Mass: 25117.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P20434 |
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#6: Protein | Mass: 17931.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P20435 |
#8: Protein | Mass: 16525.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P20436 |
#10: Protein | Mass: 8290.732 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P22139 |
#12: Protein | Mass: 7729.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() Strain: ATCC 204508 / S288c / References: UniProt: P40422 |
-Transcription factor ... , 2 types, 2 molecules RS
#18: Protein | Mass: 82097.867 Da / Num. of mol.: 1 / Mutation: C438S Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: BRF1, PCF4, TDS4, YGR246C, SPT15, BTF1, TBP1, YER148W / Production host: ![]() ![]() |
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#19: Protein | Mass: 66249.742 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() Strain: ATCC 204508 / S288c / Gene: BDP1, TFC5, YNL039W, N2682 / Production host: ![]() ![]() |
-DNA chain , 2 types, 2 molecules XY
#20: DNA chain | Mass: 21872.100 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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#21: DNA chain | Mass: 21894.096 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
-Non-polymers , 1 types, 7 molecules ![](data/chem/img/ZN.gif)
#22: Chemical | ChemComp-ZN / |
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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
Component | Name: Yeast RNA polymerase III natural open complex (nOC) / Type: COMPLEX / Entity ID: #1-#21 / Source: MULTIPLE SOURCES |
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Molecular weight | Value: 0.9 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.9 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Microscopy | Model: JEOL 3200FS |
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Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 68.9 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.10.1_2155: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Details: CTF amplitude correction was performed following 3D auto refinement in relion. Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 4.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 96971 / Symmetry type: POINT | ||||||||||||||||||||||||
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