+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-23908 | ||||||||||||||||||
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Title | RNA polymerase II initially transcribing complex (ITC) | ||||||||||||||||||
Map data | ITC | ||||||||||||||||||
Sample |
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Function / homology | Function and homology information : / regulation of mitotic recombination / RNA polymerase II promoter clearance / RNA polymerase II complex recruiting activity / TFIIA-class transcription factor complex binding / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / RNA polymerase III transcription regulatory region sequence-specific DNA binding / : / TFIIH-class transcription factor complex binding ...: / regulation of mitotic recombination / RNA polymerase II promoter clearance / RNA polymerase II complex recruiting activity / TFIIA-class transcription factor complex binding / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / RNA polymerase III transcription regulatory region sequence-specific DNA binding / : / TFIIH-class transcription factor complex binding / positive regulation of mitotic recombination / regulation of transcription by RNA polymerase III / nucleotide-excision repair factor 3 complex / RNA polymerase I general transcription initiation factor binding / transcription factor TFIIE complex / DNA translocase activity / nucleotide-excision repair, preincision complex assembly / hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides / transcription open complex formation at RNA polymerase II promoter / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / transcription factor TFIIF complex / transcription factor TFIIA complex / RNA polymerase I preinitiation complex assembly / transcription factor TFIIH holo complex / transcription factor TFIIH core complex / cyclin-dependent protein serine/threonine kinase activator activity / DNA 3'-5' helicase / transcription preinitiation complex / DNA binding, bending / poly(A)+ mRNA export from nucleus / DNA duplex unwinding / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / 3'-5' DNA helicase activity / 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 / transcription factor TFIID complex / 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 polymerase II general transcription initiation factor activity / RNA Polymerase II Pre-transcription Events / Formation of TC-NER Pre-Incision Complex / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA polymerase III activity / RNA Polymerase I Promoter Escape / RNA polymerase II complex binding / protein phosphatase activator activity / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / ATPase activator activity / Estrogen-dependent gene expression / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / RNA polymerase II activity / Dual incision in TC-NER / RNA polymerase II core promoter sequence-specific DNA binding / transcription-coupled nucleotide-excision repair / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase I activity / RNA polymerase III complex / positive regulation of translational initiation / RNA polymerase II, core complex / RNA polymerase II preinitiation complex assembly / translation initiation factor binding / DNA helicase activity / TBP-class protein binding / isomerase activity / DNA-templated transcription initiation / nucleotide-excision repair / transcription initiation at RNA polymerase II promoter / positive regulation of transcription elongation by RNA polymerase II / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / disordered domain specific binding / single-stranded DNA binding / double-stranded DNA binding / DNA helicase / 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 / damaged DNA binding / single-stranded RNA binding / protein dimerization activity / negative regulation of DNA-templated transcription / nucleotide binding / DNA-templated transcription / chromatin binding / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II Similarity search - Function | ||||||||||||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) / baker's yeast (brewer's yeast) / Baker's yeast (brewer's yeast) | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||||||||||||||
Authors | Yang C / Fujiwara R / Kim HJ / Gorbea Colon JJ / Steimle S / Garcia BA / Murakami K | ||||||||||||||||||
Funding support | United States, 5 items
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Citation | Journal: Mol Cell / Year: 2022 Title: Structural visualization of de novo transcription initiation by Saccharomyces cerevisiae RNA polymerase II. Authors: Chun Yang / Rina Fujiwara / Hee Jong Kim / Pratik Basnet / Yunye Zhu / Jose J Gorbea Colón / Stefan Steimle / Benjamin A Garcia / Craig D Kaplan / Kenji Murakami / Abstract: Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous ...Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous to capture pol II in the initiating state. Here, we report multiple structures of initiation complexes converted de novo from a 33-subunit yeast pre-initiation complex (PIC) through catalytic activities and subsequently stalled at different template positions. We determine that PICs in the initially transcribing complex (ITC) can synthesize a transcript of ∼26 nucleotides before transitioning to an elongation complex (EC) as determined by the loss of general transcription factors (GTFs). Unexpectedly, transition to an EC was greatly accelerated when an ITC encountered a downstream EC stalled at promoter proximal regions and resulted in a collided head-to-end dimeric EC complex. Our structural analysis reveals a dynamic state of TFIIH, the largest of GTFs, in PIC/ITC with distinct functional consequences at multiple steps on the pathway to elongation. | ||||||||||||||||||
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_23908.map.gz | 93 MB | EMDB map data format | |
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Header (meta data) | emd-23908-v30.xml emd-23908.xml | 54.3 KB 54.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_23908_fsc.xml | 9.1 KB | Display | FSC data file |
Images | emd_23908.png | 49.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-23908 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-23908 | HTTPS FTP |
-Validation report
Summary document | emd_23908_validation.pdf.gz | 352.2 KB | Display | EMDB validaton report |
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Full document | emd_23908_full_validation.pdf.gz | 351.7 KB | Display | |
Data in XML | emd_23908_validation.xml.gz | 9 KB | Display | |
Data in CIF | emd_23908_validation.cif.gz | 12.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23908 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23908 | HTTPS FTP |
-Related structure data
Related structure data | 7ml4MC 7meiC 7mk9C 7mkaC 7ml0C 7ml1C 7ml2C 7ml3C C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | |
EM raw data | EMPIAR-10865 (Title: Structural visualization of de novo initiation of RNA polymerase II transcription Data size: 14.3 TB Data #1: raw micrographs for PIC + ITC maps [micrographs - multiframe] Data #2: raw micrographs for EC+EC map [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_23908.map.gz / Format: CCP4 / Size: 364.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | ITC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : RNA polymerase II initially transcribing complex (ITC)
+Supramolecule #1: RNA polymerase II initially transcribing complex (ITC)
+Supramolecule #2: Pol II + TFIIB + RNA
+Supramolecule #3: DNA+TBP+TFIIA+TFIIE+TFIIF
+Supramolecule #4: TFIIH
+Macromolecule #1: Transcription initiation factor IIF subunit alpha
+Macromolecule #2: Transcription initiation factor IIF subunit beta
+Macromolecule #3: DNA-directed RNA polymerase II subunit RPB4
+Macromolecule #4: DNA-directed RNA polymerase II subunit RPB7
+Macromolecule #5: Transcription initiation factor IIB
+Macromolecule #6: DNA-directed RNA polymerase subunit
+Macromolecule #7: DNA-directed RNA polymerase subunit beta
+Macromolecule #8: DNA-directed RNA polymerase II subunit RPB3
+Macromolecule #9: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #10: DNA-directed RNA polymerases I,II,and III subunit RPABC2
+Macromolecule #11: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #12: DNA-directed RNA polymerase II subunit RPB9
+Macromolecule #13: DNA-directed RNA polymerases II subunit RPABC5
+Macromolecule #14: DNA-directed RNA polymerase II subunit RPB11
+Macromolecule #15: DNA-directed RNA polymerases II subunit RPABC4
+Macromolecule #16: BJ4_G0050160.mRNA.1.CDS.1
+Macromolecule #17: General transcription and DNA repair factor IIH helicase subunit XPD
+Macromolecule #18: General transcription and DNA repair factor IIH subunit TFB4
+Macromolecule #19: General transcription and DNA repair factor IIH
+Macromolecule #20: Tfb1
+Macromolecule #21: General transcription and DNA repair factor IIH helicase subunit XPB
+Macromolecule #22: General transcription and DNA repair factor IIH subunit TFB5
+Macromolecule #23: RNA polymerase II transcription factor B subunit 2
+Macromolecule #24: Transcription initiation factor IIE subunit beta
+Macromolecule #25: Transcription initiation factor IIA large subunit
+Macromolecule #26: Transcription initiation factor IIA subunit 2
+Macromolecule #29: TATA-box-binding protein
+Macromolecule #30: Transcription initiation factor IIE subunit alpha
+Macromolecule #27: non-template strand DNA
+Macromolecule #28: template strand DNA
+Macromolecule #31: RNA
+Macromolecule #32: ZINC ION
+Macromolecule #33: MAGNESIUM ION
+Macromolecule #34: IRON/SULFUR CLUSTER
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.6 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 45.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |