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- EMDB-43017: 60S ribosome biogenesis intermediate (Dbp10 pre-catalytic structu... -
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Basic information
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Title | 60S ribosome biogenesis intermediate (Dbp10 pre-catalytic structure - Overall map) | ||||||||||||
![]() | Overall map | ||||||||||||
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![]() | Ribosome biogenesis intermediate DEAD-box ATPase / RIBOSOME | ||||||||||||
Function / homology | ![]() 25S rRNA (cytosine2870-C5)-methyltransferase / snoRNA release from pre-rRNA / nuclear division / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage in ITS1 upstream of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA (cytosine-C5-)-methyltransferase activity / endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / intracellular mRNA localization / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / PeBoW complex ...25S rRNA (cytosine2870-C5)-methyltransferase / snoRNA release from pre-rRNA / nuclear division / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage in ITS1 upstream of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA (cytosine-C5-)-methyltransferase activity / endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / intracellular mRNA localization / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / PeBoW complex / rRNA primary transcript binding / rRNA base methylation / ATP-dependent activity, acting on RNA / positive regulation of ATP-dependent activity / rRNA methylation / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein folding chaperone complex / preribosome, small subunit precursor / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of cell size / maturation of 5.8S rRNA / proteasome binding / Major pathway of rRNA processing in the nucleolus and cytosol / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / ATPase activator activity / preribosome, large subunit precursor / nuclear-transcribed mRNA catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / translational elongation / ribosomal large subunit export from nucleus / 90S preribosome / mRNA transport / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal subunit export from nucleus / maturation of LSU-rRNA / ribonucleoprotein complex binding / translation initiation factor activity / proteasome complex / nuclear periphery / assembly of large subunit precursor of preribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / cytosolic ribosome assembly / maturation of SSU-rRNA / small-subunit processome / macroautophagy / protein catabolic process / maintenance of translational fidelity / rRNA processing / nuclear envelope / ATPase binding / ribosomal small subunit biogenesis / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / protein-macromolecule adaptor activity / cytosolic large ribosomal subunit / cytoplasmic translation / RNA helicase activity / negative regulation of translation / rRNA binding / RNA helicase / ribosome / structural constituent of ribosome / translation / chromatin extrusion motor activity / ATP-dependent H2AZ histone chaperone activity / ATP-dependent H3-H4 histone complex chaperone activity / cohesin loader activity / DNA clamp loader activity / GTPase activity / mRNA binding / nucleolus / GTP binding / ATP hydrolysis activity / DNA binding / RNA binding / nucleoplasm / ATP binding / identical protein binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.53 Å | ||||||||||||
![]() | Cruz VE / Weirich CS / Peddada N / Erzberger JP | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: The DEAD-box ATPase Dbp10/DDX54 initiates peptidyl transferase center formation during 60S ribosome biogenesis. Authors: Victor E Cruz / Christine S Weirich / Nagesh Peddada / Jan P Erzberger / ![]() Abstract: DEAD-box ATPases play crucial roles in guiding rRNA restructuring events during the biogenesis of large (60S) ribosomal subunits, but their precise molecular functions are currently unknown. In this ...DEAD-box ATPases play crucial roles in guiding rRNA restructuring events during the biogenesis of large (60S) ribosomal subunits, but their precise molecular functions are currently unknown. In this study, we present cryo-EM reconstructions of nucleolar pre-60S intermediates that reveal an unexpected, alternate secondary structure within the nascent peptidyl-transferase-center (PTC). Our analysis of three sequential nucleolar pre-60S intermediates reveals that the DEAD-box ATPase Dbp10/DDX54 remodels this alternate base pairing and enables the formation of the rRNA junction that anchors the mature form of the universally conserved PTC A-loop. Post-catalysis, Dbp10 captures rRNA helix H61, initiating the concerted exchange of biogenesis factors during late nucleolar 60S maturation. Our findings show that Dbp10 activity is essential for the formation of the ribosome active site and reveal how this function is integrated with subsequent assembly steps to drive the biogenesis of the large ribosomal subunit. | ||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 265.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 72.5 KB 72.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.8 KB | Display | ![]() |
Images | ![]() | 143.6 KB | ||
Filedesc metadata | ![]() | 17.5 KB | ||
Others | ![]() ![]() | 225.4 MB 225.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 977.7 KB | Display | ![]() |
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Full document | ![]() | 977.3 KB | Display | |
Data in XML | ![]() | 22.3 KB | Display | |
Data in CIF | ![]() | 29.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8v83MC ![]() 8v84C ![]() 8v85C ![]() 8v87C 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 | Overall map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.059 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Overall half-map 1
File | emd_43017_half_map_1.map | ||||||||||||
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Annotation | Overall half-map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Overall half-map 2
File | emd_43017_half_map_2.map | ||||||||||||
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Annotation | Overall half-map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : 60S ribosome biogenesis intermediate
+Supramolecule #1: 60S ribosome biogenesis intermediate
+Macromolecule #1: Saccharomyces cerevisiae S288C 25S ribosomal RNA
+Macromolecule #2: Saccharomyces cerevisiae S288C 5.8S ribosomal RNA
+Macromolecule #3: Saccharomyces cerevisiae ITS-2
+Macromolecule #4: 60S ribosomal subunit assembly/export protein LOC1
+Macromolecule #5: Ribosomal RNA-processing protein 14
+Macromolecule #6: Ribosome biogenesis protein BRX1
+Macromolecule #7: 60S ribosomal protein L3
+Macromolecule #8: 60S ribosomal protein L4-A
+Macromolecule #9: ATP-dependent RNA helicase HAS1
+Macromolecule #10: 60S ribosomal protein L6-A
+Macromolecule #11: 60S ribosomal protein L7-A
+Macromolecule #12: Large ribosomal subunit protein eL8A
+Macromolecule #13: Large ribosomal subunit protein uL6A
+Macromolecule #14: Ribosome biogenesis protein NSA1
+Macromolecule #15: rRNA-processing protein EBP2
+Macromolecule #16: Proteasome-interacting protein CIC1
+Macromolecule #17: 60S ribosomal protein L13-A
+Macromolecule #18: 60S ribosomal protein L14-A
+Macromolecule #19: Large ribosomal subunit protein eL15A
+Macromolecule #20: Large ribosomal subunit protein uL13A
+Macromolecule #21: 60S ribosomal protein L17-A
+Macromolecule #22: 60S ribosomal protein L18-A
+Macromolecule #23: Protein MAK16
+Macromolecule #24: Large ribosomal subunit protein eL20A
+Macromolecule #25: Ribosomal RNA-processing protein 15
+Macromolecule #26: 60S ribosomal protein L23-A
+Macromolecule #27: Ribosome assembly factor MRT4
+Macromolecule #28: 60S ribosomal protein L26-A
+Macromolecule #29: Ribosome biogenesis protein SSF1
+Macromolecule #30: Large ribosomal subunit protein uL1A
+Macromolecule #31: Nucleolar GTP-binding protein 1
+Macromolecule #32: 60S ribosomal protein L32
+Macromolecule #33: 60S ribosomal protein L33-A
+Macromolecule #34: 60S ribosomal protein L35-A
+Macromolecule #35: 60S ribosomal protein L36-A
+Macromolecule #36: 60S ribosomal protein L37-A
+Macromolecule #37: 60S ribosome subunit biogenesis protein NIP7
+Macromolecule #38: Ribosome biogenesis protein ERB1
+Macromolecule #39: Pescadillo homolog
+Macromolecule #40: Ribosome biogenesis protein 15
+Macromolecule #41: 25S rRNA (cytosine(2870)-C(5))-methyltransferase
+Macromolecule #42: Ribosome biogenesis protein NSA2
+Macromolecule #43: Ribosome biogenesis protein RLP7
+Macromolecule #44: Ribosome biogenesis protein RLP24
+Macromolecule #45: Nucleolar protein 16
+Macromolecule #46: Ribosomal RNA-processing protein 1
+Macromolecule #47: Ribosome production factor 1
+Macromolecule #48: Eukaryotic translation initiation factor 6
+Macromolecule #49: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.5 mg/mL | |||||||||||||||
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Buffer | pH: 8 Component:
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Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 39.3 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.9 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |