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Yorodumi- EMDB-18656: Mycobacterium smegnatis RNA polymerase transcription initiation c... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-18656 | ||||||||||||||||||
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Title | Mycobacterium smegnatis RNA polymerase transcription initiation complex with SigmaA, RbpA, HelD and an upstream-fork promoter fragment | ||||||||||||||||||
Map data | Loc-Scale filtered | ||||||||||||||||||
Sample |
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Keywords | HelD / RNA polymerase / transcription initiation / Mycobacteria / TRANSCRIPTION / rifampicin resistance | ||||||||||||||||||
Function / homology | Function and homology information DNA helicase complex / recombinational repair / 3'-5' DNA helicase activity / bacterial-type RNA polymerase core enzyme binding / sigma factor activity / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase ...DNA helicase complex / recombinational repair / 3'-5' DNA helicase activity / bacterial-type RNA polymerase core enzyme binding / sigma factor activity / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / protein dimerization activity / hydrolase activity / response to antibiotic / DNA-templated transcription / positive regulation of DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / ATP binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||
Biological species | Mycolicibacterium smegmatis MC2 155 (bacteria) | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.45 Å | ||||||||||||||||||
Authors | Koval T / Krasny L / Dohnalek J / Kouba T | ||||||||||||||||||
Funding support | Czech Republic, European Union, 5 items
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Citation | Journal: To Be Published Title: Molecular insights into RNA polymerase recycling by mycobacterial HelD Authors: Koval T / Dohnalek L / Libor K / Kouba T | ||||||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_18656.map.gz | 88.3 MB | EMDB map data format | |
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Header (meta data) | emd-18656-v30.xml emd-18656.xml | 29.7 KB 29.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_18656_fsc.xml | 12.8 KB | Display | FSC data file |
Images | emd_18656.png | 105.8 KB | ||
Masks | emd_18656_msk_1.map | 178 MB | Mask map | |
Filedesc metadata | emd-18656.cif.gz | 9.1 KB | ||
Others | emd_18656_additional_1.map.gz emd_18656_half_map_1.map.gz emd_18656_half_map_2.map.gz | 165.7 MB 141.2 MB 140.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-18656 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-18656 | HTTPS FTP |
-Validation report
Summary document | emd_18656_validation.pdf.gz | 836.8 KB | Display | EMDB validaton report |
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Full document | emd_18656_full_validation.pdf.gz | 836.4 KB | Display | |
Data in XML | emd_18656_validation.xml.gz | 19.7 KB | Display | |
Data in CIF | emd_18656_validation.cif.gz | 25.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18656 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18656 | HTTPS FTP |
-Related structure data
Related structure data | 8qu6MC 8q3iC 8qn8C 8qtiC 8r2mC 8r3mC 8r6pC 8r6rC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_18656.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Loc-Scale filtered | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8336 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_18656_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: RELION post-processed
File | emd_18656_additional_1.map | ||||||||||||
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Annotation | RELION post-processed | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_18656_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_18656_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Mycobacterium smegnatis RNA polymerase transcription initiation c...
+Supramolecule #1: Mycobacterium smegnatis RNA polymerase transcription initiation c...
+Macromolecule #1: DNA-directed RNA polymerase subunit alpha
+Macromolecule #2: DNA-directed RNA polymerase subunit beta
+Macromolecule #3: DNA-directed RNA polymerase subunit beta'
+Macromolecule #4: RNA polymerase-binding protein RbpA
+Macromolecule #5: DNA-directed RNA polymerase subunit omega
+Macromolecule #6: RNA polymerase sigma factor SigA
+Macromolecule #7: Helicase
+Macromolecule #8: DNA 22-MER
+Macromolecule #9: DNA 31-MER
+Macromolecule #10: ZINC ION
+Macromolecule #11: MAGNESIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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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 exposure time: 2.0 sec. / Average electron dose: 40.0 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: 2.9 µm / Nominal defocus min: 0.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |