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- EMDB-61287: The RNA polymerase II elongation complex from Saccharomyces cerevisiae -
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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | The RNA polymerase II elongation complex from Saccharomyces cerevisiae | |||||||||
![]() | Full map of polymase II elongation complex from Saccharomyces cerevisiae | |||||||||
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![]() | RNA polymerase / elongation complex / BIOSYNTHETIC PROTEIN | |||||||||
Function / homology | ![]() RPB4-RPB7 complex / 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 ...RPB4-RPB7 complex / 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 / 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 / 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 / nuclear-transcribed mRNA catabolic process / positive regulation of translational initiation / Dual incision in TC-NER / transcription by RNA polymerase III / transcription by RNA polymerase I / translesion synthesis / 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 / : / translation initiation factor binding / DNA-directed RNA polymerase activity / transcription initiation at RNA polymerase II promoter / DNA-templated transcription initiation / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / : / : / : / : / : / : / DNA-directed RNA polymerase / mRNA processing / cytoplasmic stress granule / peroxisome / ribosome biogenesis / single-stranded DNA binding / transcription by RNA polymerase II / single-stranded RNA binding / protein dimerization activity / nucleotide binding / mRNA binding / nucleolus / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.98 Å | |||||||||
![]() | Yi G / Ma J / Zhang P | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Open architecture of archaea MCM and dsDNA complexes resolved using monodispersed streptavidin affinity CryoEM. Authors: Jianbing Ma / Gangshun Yi / Mingda Ye / Craig MacGregor-Chatwin / Yuewen Sheng / Ying Lu / Ming Li / Qingrong Li / Dong Wang / Robert J C Gilbert / Peijun Zhang / ![]() ![]() ![]() Abstract: The cryo-electron microscopy (cryoEM) method has enabled high-resolution structure determination of numerous biomolecules and complexes. Nevertheless, cryoEM sample preparation of challenging ...The cryo-electron microscopy (cryoEM) method has enabled high-resolution structure determination of numerous biomolecules and complexes. Nevertheless, cryoEM sample preparation of challenging proteins and complexes, especially those with low abundance or with preferential orientation, remains a major hurdle. We developed an affinity-grid method employing monodispersed single particle streptavidin on a lipid monolayer to enhance particle absorption on the grid surface and alleviate sample exposure to the air-water interface. Using this approach, we successfully enriched the Thermococcus kodakarensis mini-chromosome maintenance complex 3 (MCM3) on cryoEM grids through biotinylation and resolved its structure. We further utilized this affinity method to tether the biotin-tagged dsDNA to selectively enrich a stable MCM3-ATP-dsDNA complex for cryoEM structure determination. Intriguingly, both MCM3 apo and dsDNA bound structures exhibit left-handed open spiral conformations, distinct from other reported MCM structures. The large open gate is sufficient to accommodate a dsDNA which could potentially be melted. The value of mspSA affinity method was further demonstrated by mitigating the issue of preferential angular distribution of HIV-1 capsid protein hexamer and RNA polymerase II elongation complex from Saccharomyces cerevisiae. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 267.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 34.7 KB 34.7 KB | Display Display | ![]() |
Images | ![]() | 63.1 KB | ||
Filedesc metadata | ![]() | 9.5 KB | ||
Others | ![]() ![]() | 262.6 MB 262.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9ja1MC ![]() 8x7tC ![]() 8x7uC ![]() 9ja0C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Full map of polymase II elongation complex from Saccharomyces cerevisiae | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.829 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Half map of polymase II elongation complex from...
File | emd_61287_half_map_1.map | ||||||||||||
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Annotation | Half map of polymase II elongation complex from Saccharomyces cerevisiae | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map of polymase II elongation complex from...
File | emd_61287_half_map_2.map | ||||||||||||
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Annotation | Half map of polymase II elongation complex from Saccharomyces cerevisiae | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : The RNA polymerase II elongation complex from Saccharomyces cerevisiae
+Supramolecule #1: The RNA polymerase II elongation complex from Saccharomyces cerevisiae
+Supramolecule #2: RNA polymerase II
+Supramolecule #3: DNA, RNA
+Macromolecule #1: DNA-directed RNA polymerase II subunit RPB1
+Macromolecule #2: DNA-directed RNA polymerase II subunit RPB2
+Macromolecule #3: DNA-directed RNA polymerase II subunit RPB3
+Macromolecule #4: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #6: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #7: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #8: DNA-directed RNA polymerase II subunit RPB11
+Macromolecule #9: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #10: DNA-directed RNA polymerase II subunit RPB4
+Macromolecule #11: DNA-directed RNA polymerase II subunit RPB7
+Macromolecule #12: RNA (5'-R(P*AP*UP*CP*GP*AP*GP*AP*GP*G)-3')
+Macromolecule #13: DNA (5'-D(P*GP*CP*TP*CP*CP*TP*TP*CP*TP*CP*CP*CP*AP*TP*CP*CP*TP*CP...
+Macromolecule #14: DNA (5'-D(P*TP*GP*GP*GP*AP*GP*AP*AP*GP*GP*AP*GP*C)-3')
+Macromolecule #15: ZINC ION
+Macromolecule #16: MAGNESIUM ION
+Macromolecule #17: ADENOSINE-5'-TRIPHOSPHATE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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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: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.98 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 146186 |
Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |