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- PDB-8k5p: Cryo-EM structure of yeast Rat1-bound Pol II pre-termination tran... -
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Basic information
Entry | Database: PDB / ID: 8k5p | |||||||||
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Title | Cryo-EM structure of yeast Rat1-bound Pol II pre-termination transcription complex 2 (Pol II Rat1-PTTC2) | |||||||||
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![]() | TRANSCRIPTION / Transcription termination / Pol II / Rat1/Rai1 Spt5 | |||||||||
Function / homology | ![]() negative regulation of transcription elongation by RNA polymerase I / RNA polymerase II termination complex / sno(s)RNA processing / positive regulation of termination of RNA polymerase II transcription / positive regulation of transcription elongation by RNA polymerase I / RNA NAD+-cap (NAD+-forming) hydrolase activity / termination of RNA polymerase II transcription, poly(A)-coupled / Las1 complex / termination of RNA polymerase II transcription, exosome-dependent / Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA ...negative regulation of transcription elongation by RNA polymerase I / RNA polymerase II termination complex / sno(s)RNA processing / positive regulation of termination of RNA polymerase II transcription / positive regulation of transcription elongation by RNA polymerase I / RNA NAD+-cap (NAD+-forming) hydrolase activity / termination of RNA polymerase II transcription, poly(A)-coupled / Las1 complex / termination of RNA polymerase II transcription, exosome-dependent / Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA / Tristetraprolin (TTP, ZFP36) binds and destabilizes mRNA / phosphodiesterase decapping endonuclease activity / deadenylation-independent decapping of nuclear-transcribed mRNA / regulation of transcription-coupled nucleotide-excision repair / mRNA 5'-diphosphatase activity / nuclear polyadenylation-dependent rRNA catabolic process / NAD-cap decapping / regulation of rRNA processing / 5'-3' RNA exonuclease activity / RNA polymerase I core binding / intracellular mRNA localization / rDNA heterochromatin / nuclear mRNA surveillance / RNA polymerase I general transcription initiation factor binding / DSIF complex / RPB4-RPB7 complex / snRNP binding / U4 snRNA binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / 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 / termination of RNA polymerase II transcription / 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 / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / Formation of TC-NER Pre-Incision Complex / transcription elongation-coupled chromatin remodeling / transcription initiation at RNA polymerase III promoter / RNA Polymerase I Promoter Escape / termination of RNA polymerase I transcription / spliceosomal complex assembly / 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 / RNA polymerase II complex binding / Estrogen-dependent gene expression / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / nuclear-transcribed mRNA catabolic process / positive regulation of translational initiation / transcription by RNA polymerase III / negative regulation of transcription elongation by RNA polymerase II / Dual incision in TC-NER / U5 snRNA binding / U2 snRNA binding / U6 snRNA binding / translesion synthesis / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / U1 snRNA binding / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / enzyme regulator activity / translation initiation factor binding / transcription-coupled nucleotide-excision repair / positive regulation of autophagy / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / DNA-templated transcription initiation / P-body / positive regulation of transcription elongation by RNA polymerase II / mRNA splicing, via spliceosome / ribonucleoside binding / mRNA processing / DNA-directed RNA polymerase / cytoplasmic stress granule / rRNA processing / DNA-directed RNA polymerase activity / peroxisome / ribosome biogenesis / single-stranded DNA binding / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / histone binding / nucleic acid binding Similarity search - Function | |||||||||
Biological species | ![]() ![]() synthetic construct (others) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
![]() | Zeng, Y. / Zhang, Y. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of exoribonuclease-mediated mRNA transcription termination. Authors: Yuan Zeng / Hong-Wei Zhang / Xiao-Xian Wu / Yu Zhang / ![]() Abstract: Efficient termination is required for robust gene transcription. Eukaryotic organisms use a conserved exoribonuclease-mediated mechanism to terminate the mRNA transcription by RNA polymerase II ...Efficient termination is required for robust gene transcription. Eukaryotic organisms use a conserved exoribonuclease-mediated mechanism to terminate the mRNA transcription by RNA polymerase II (Pol II). Here we report two cryogenic electron microscopy structures of Saccharomyces cerevisiae Pol II pre-termination transcription complexes bound to the 5'-to-3' exoribonuclease Rat1 and its partner Rai1. Our structures show that Rat1 displaces the elongation factor Spt5 to dock at the Pol II stalk domain. Rat1 shields the RNA exit channel of Pol II, guides the nascent RNA towards its active centre and stacks three nucleotides at the 5' terminus of the nascent RNA. The structures further show that Rat1 rotates towards Pol II as it shortens RNA. Our results provide the structural mechanism for the Rat1-mediated termination of mRNA transcription by Pol II in yeast and the exoribonuclease-mediated termination of mRNA transcription in other eukaryotes. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.1 MB | Display | ![]() |
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PDB format | ![]() | 866.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.4 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 140.1 KB | Display | |
Data in CIF | ![]() | 219.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 36908MC ![]() 8jchC C: citing same article ( M: map data used to model this data |
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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 II subunit ... , 7 types, 7 molecules ABCIKDG
#1: Protein | Mass: 191821.578 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Protein | Mass: 143336.766 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Residues (1225B-1259B) are an affinity tag(containing a TEV-6xHis-3xFlag tag) we modified in the genome of target strain for convenient protein purification. Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#3: Protein | Mass: 35330.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#7: Protein | Mass: 14308.161 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 13633.493 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 25451.191 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 19081.053 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
#4: Protein | Mass: 25117.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#5: Protein | Mass: 17931.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#6: Protein | Mass: 16525.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#8: Protein | Mass: 8290.732 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 7729.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-DNA chain , 2 types, 2 molecules NT
#11: DNA chain | Mass: 14935.569 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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#13: DNA chain | Mass: 14633.406 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-RNA chain , 1 types, 1 molecules P
#12: RNA chain | Mass: 6446.904 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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-Protein , 3 types, 3 molecules WMO
#14: Protein | Mass: 116758.031 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#17: Protein | Mass: 117606.508 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: Q02792, Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters |
#18: Protein | Mass: 44571.445 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: P53063, Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides |
-Non-polymers , 2 types, 11 molecules 


#19: Chemical | ChemComp-ZN / #20: Chemical | |
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-Details
Has ligand of interest | Y |
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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: RNA Polymerase II pre-termination complex bound with Rat1-Rai1 and Spt5(PTC2) Type: COMPLEX / Entity ID: #1-#18 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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: DARK FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1000 nm / Cs: 0.01 mm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 265756 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE | ||||||||||||||||||||||||
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