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- EMDB-53853: Cryo-EM structure of the human mitochondrial RNA polymerase trans... -
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Open data
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Basic information
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Title | Cryo-EM structure of the human mitochondrial RNA polymerase transcription initiation complex (POLRMT/TFAM/TFB2M/DNA/RNA) with a slipped 3-mer RNA, pppGpGpA (slipped IC3) | |||||||||
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![]() | POLRMT / TFB2M / TFAM / transcription / initiation / transcription initiation / polymerase / h-mtRNAP / y-mtRNAP / mtRNAP / RNA polymerase / mitochondrial / mitochondria / mitochondrial DNA / DNA / RNA / slippage | |||||||||
Function / homology | ![]() rRNA (adenine-N6-)-methyltransferase activity / Mitochondrial transcription initiation / mitochondrial DNA-directed RNA polymerase complex / mitochondrial promoter sequence-specific DNA binding / mitochondrial transcription factor activity / mitochondrial respiratory chain complex assembly / transcription initiation at mitochondrial promoter / rRNA (adenine-N6,N6-)-dimethyltransferase activity / Strand-asynchronous mitochondrial DNA replication / mitochondrial DNA replication ...rRNA (adenine-N6-)-methyltransferase activity / Mitochondrial transcription initiation / mitochondrial DNA-directed RNA polymerase complex / mitochondrial promoter sequence-specific DNA binding / mitochondrial transcription factor activity / mitochondrial respiratory chain complex assembly / transcription initiation at mitochondrial promoter / rRNA (adenine-N6,N6-)-dimethyltransferase activity / Strand-asynchronous mitochondrial DNA replication / mitochondrial DNA replication / mitochondrial transcription / rRNA methylation / DNA binding, bending / mitochondrial nucleoid / heat shock protein binding / response to nutrient / Mitochondrial protein degradation / Transferases; Transferring one-carbon groups; Methyltransferases / Transcriptional activation of mitochondrial biogenesis / transcription coactivator binding / DNA-directed RNA polymerase activity / DNA-directed RNA polymerase / 3'-5'-RNA exonuclease activity / sequence-specific DNA binding / response to hypoxia / transcription cis-regulatory region binding / mitochondrial matrix / chromatin binding / regulation of transcription by RNA polymerase II / positive regulation of DNA-templated transcription / protein-containing complex / mitochondrion / RNA binding / nucleus / cytosol Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
![]() | Goovaerts Q / Shen J / Ajjugal Y / De Wijngaert B / Patel SS / Das K | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structure of the human mitochondrial RNA polymerase transcription initiation complex (POLRMT/TFAM/TFB2M/DNA/RNA) with a 2-mer RNA (pppGpA) and GTP poised for catalysis (pre-IC3) Authors: Goovaerts Q / Shen J / Ajjugal Y / De Wijngaert B / Patel SS / Das K | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 21.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 28.9 KB 28.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 10.5 KB | Display | ![]() |
Images | ![]() | 64.2 KB | ||
Masks | ![]() | 22.2 MB | ![]() | |
Filedesc metadata | ![]() | 8.1 KB | ||
Others | ![]() ![]() ![]() | 21.1 MB 20.7 MB 20.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 954.4 KB | Display | ![]() |
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Full document | ![]() | 953.9 KB | Display | |
Data in XML | ![]() | 15.2 KB | Display | |
Data in CIF | ![]() | 20.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9r95MC ![]() 9gzmC ![]() 9gznC ![]() 9gzoC ![]() 9r96C C: citing same article ( M: atomic model generated by this map |
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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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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.9 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Density Histograms |
-Additional map: unsharpened
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Density Histograms |
-Half map: #2
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Density Histograms |
-Half map: #1
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Density Histograms |
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Sample components
+Entire : human mitochondrial RNA polymerase transcription initiation compl...
+Supramolecule #1: human mitochondrial RNA polymerase transcription initiation compl...
+Supramolecule #2: DNA-directed RNA polymerase, mitochondrial
+Supramolecule #3: DNA (56-mer)
+Supramolecule #4: Dimethyladenosine transferase 2, mitochondrial
+Supramolecule #5: Transcription factor A, mitochondrial
+Macromolecule #1: DNA-directed RNA polymerase, mitochondrial
+Macromolecule #2: Dimethyladenosine transferase 2, mitochondrial
+Macromolecule #3: Transcription factor A, mitochondrial
+Macromolecule #4: RNA (5'-D(*(GTP))-R(P*GP*A)-3')
+Macromolecule #5: Non-template strand DNA (56-MER)
+Macromolecule #6: Template strand DNA (56-MER)
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1.2 mg/mL |
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Buffer | pH: 8 Details: 30 mM Tris-HCl pH 8, 200 mM NaCl, 3 mM DTT, 10 mM MgCl2 |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 45 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.03 kPa |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV Details: incubated on the grid for 5 seconds prior to double sided blotting for 3.5 seconds at force 1. |
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Electron microscopy
Microscope | TFS GLACIOS |
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Specialist optics | Energy filter - Name: TFS Selectris / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Number grids imaged: 1 / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 20.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 130000 |
Sample stage | Specimen holder model: OTHER / Cooling holder cryogen: NITROGEN |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Overall B value: 99 / Target criteria: Correlation Coefficient |
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Output model | ![]() PDB-9r95: |