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- PDB-9g1v: Yeast RNA polymerase I elongation complex stalled by an apurinic site -
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Open data
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Basic information
Entry | Database: PDB / ID: 9g1v | ||||||
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Title | Yeast RNA polymerase I elongation complex stalled by an apurinic site | ||||||
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![]() | TRANSCRIPTION / DNA lesion | ||||||
Function / homology | ![]() RNA polymerase I preinitiation complex assembly / RNA Polymerase I Transcription Initiation / 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 I preinitiation complex assembly / RNA Polymerase I Transcription Initiation / 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 / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / regulation of cell size / Formation of TC-NER Pre-Incision Complex / RNA Polymerase I Promoter Escape / transcription initiation at RNA polymerase III promoter / termination of RNA polymerase I transcription / 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 / Estrogen-dependent gene expression / Dual incision in TC-NER / transcription by RNA polymerase III / transcription by RNA polymerase I / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / : / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / promoter-specific chromatin binding / ribonucleoside binding / : / : / : / : / : / : / DNA-directed RNA polymerase / peroxisome / ribosome biogenesis / RNA polymerase II-specific DNA-binding transcription factor binding / transcription by RNA polymerase II / nucleic acid binding / protein dimerization activity / nucleolus / negative regulation of transcription by RNA polymerase II / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å | ||||||
![]() | Santos-Aledo, A. / Plaza-Pegueroles, A. / Ruiz, F.M. / Fernandez-Tornero, C. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM uncovers a sequential mechanism for RNA polymerase I pausing and stalling at abasic DNA lesions. Authors: Alicia Santos-Aledo / Adrián Plaza-Pegueroles / Marta Sanz-Murillo / Federico M Ruiz / Peini Hou / Jun Xu / David Gil-Carton / Dong Wang / Carlos Fernández-Tornero / ![]() ![]() Abstract: During synthesis of the ribosomal RNA precursor, RNA polymerase I (Pol I) monitors DNA integrity but its response to DNA damage remains poorly studied. Abasic sites are among the most prevalent DNA ...During synthesis of the ribosomal RNA precursor, RNA polymerase I (Pol I) monitors DNA integrity but its response to DNA damage remains poorly studied. Abasic sites are among the most prevalent DNA lesions in eukaryotic cells, and their detection is critical for cell survival. We report cryo-EM structures of Pol I in different stages of stalling at abasic sites, supported by in vitro transcription studies. Slow nucleotide addition opposite abasic sites occurs through base sandwiching between the RNA 3'-end and the Pol I bridge helix. Templating abasic sites can also cause Pol I cleft opening, which enables the A12 subunit to access the active center. Nucleotide addition opposite the lesion induces a translocation intermediate where DNA bases tilt to form hydrogen bonds with the new RNA base. These findings reveal unique mechanisms of Pol I stalling at abasic sites, differing from arrest by bulky lesions or abasic site handling by RNA polymerase II. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 981.8 KB | Display | ![]() |
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PDB format | ![]() | 664.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 50955MC ![]() 9g1xC ![]() 9g23C ![]() 9g24C ![]() 9g26C ![]() 9g27C ![]() 9g29C ![]() 9g2bC ![]() 9g2cC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-DNA-directed RNA polymerase I subunit ... , 7 types, 7 molecules ABDGIMN
#1: Protein | Mass: 186676.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Protein | Mass: 135910.328 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#4: Protein | Mass: 14599.128 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#7: Protein | Mass: 36264.852 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 13676.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein | Mass: 46721.707 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#14: Protein | Mass: 26933.518 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-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) ![]() ![]() |
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#11: Protein | Mass: 16167.860 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-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) ![]() ![]() |
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#6: Protein | Mass: 17931.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#8: Protein | Mass: 16525.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 8290.732 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 7729.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-RNA chain , 1 types, 1 molecules R
#15: RNA chain | Mass: 3883.408 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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-DNA chain , 2 types, 2 molecules ST
#16: DNA chain | Mass: 11553.407 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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#17: DNA chain | Mass: 11529.416 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
-Non-polymers , 2 types, 7 molecules 


#18: Chemical | ChemComp-MG / |
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#19: Chemical | ChemComp-ZN / |
-Details
Has ligand of interest | Y |
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Has protein modification | N |
-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 | Experimental value: NO | ||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: synthetic construct (others) | ||||||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: METHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 40.1 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 834570 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 57.66 Å2 | ||||||||||||||||||||||||
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