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- EMDB-4136: Structure of the mammalian rescue complex with Pelota and Hbs1l a... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-4136 | ||||||||||||
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Title | Structure of the mammalian rescue complex with Pelota and Hbs1l assembled on a polyadenylated mRNA. | ||||||||||||
![]() | Postprocessed, sharpened map. | ||||||||||||
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![]() | Translation / Elongation / Ribosome | ||||||||||||
Function / homology | ![]() stalled ribosome sensor activity / Dom34-Hbs1 complex / RNA surveillance / nuclear-transcribed mRNA catabolic process, no-go decay / mesenchymal to epithelial transition / mRNA decay by 3' to 5' exoribonuclease / nuclear-transcribed mRNA catabolic process, non-stop decay / endoderm development / positive regulation of BMP signaling pathway / ribosome disassembly ...stalled ribosome sensor activity / Dom34-Hbs1 complex / RNA surveillance / nuclear-transcribed mRNA catabolic process, no-go decay / mesenchymal to epithelial transition / mRNA decay by 3' to 5' exoribonuclease / nuclear-transcribed mRNA catabolic process, non-stop decay / endoderm development / positive regulation of BMP signaling pathway / ribosome disassembly / nonfunctional rRNA decay / regulation of G1 to G0 transition / exit from mitosis / inner cell mass cell proliferation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / stem cell population maintenance / retinal ganglion cell axon guidance / mammalian oogenesis stage / G1 to G0 transition / activation-induced cell death of T cells / positive regulation of signal transduction by p53 class mediator / phagocytic cup / ubiquitin ligase inhibitor activity / chromosome organization / TOR signaling / T cell proliferation involved in immune response / erythrocyte development / translation elongation factor activity / negative regulation of ubiquitin-dependent protein catabolic process / translation regulator activity / cellular response to actinomycin D / ribosomal small subunit export from nucleus / cytosolic ribosome / rough endoplasmic reticulum / gastrulation / MDM2/MDM4 family protein binding / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / 90S preribosome / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / rescue of stalled ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / positive regulation of apoptotic signaling pathway / cellular response to leukemia inhibitory factor / maturation of SSU-rRNA / small-subunit processome / positive regulation of translation / protein kinase C binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / cell cycle / positive regulation of protein-containing complex assembly / placenta development / cellular response to gamma radiation / transcription coactivator binding / mRNA 5'-UTR binding / modification-dependent protein catabolic process / spindle / cytoplasmic ribonucleoprotein granule / G1/S transition of mitotic cell cycle / rRNA processing / protein tag activity / antimicrobial humoral immune response mediated by antimicrobial peptide / positive regulation of canonical Wnt signaling pathway / rhythmic process / ribosome binding / retina development in camera-type eye / glucose homeostasis / regulation of translation / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / cell body / T cell differentiation in thymus / 5S rRNA binding / large ribosomal subunit rRNA binding / perikaryon / cytosolic small ribosomal subunit / defense response to Gram-negative bacterium / killing of cells of another organism / cytosolic large ribosomal subunit / cytoplasmic translation / mitochondrial inner membrane / tRNA binding / postsynaptic density / cell differentiation / protein stabilization / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.99 Å | ||||||||||||
![]() | Shao S / Murray J | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Decoding Mammalian Ribosome-mRNA States by Translational GTPase Complexes. Authors: Sichen Shao / Jason Murray / Alan Brown / Jack Taunton / V Ramakrishnan / Ramanujan S Hegde / ![]() ![]() Abstract: In eukaryotes, accurate protein synthesis relies on a family of translational GTPases that pair with specific decoding factors to decipher the mRNA code on ribosomes. We present structures of the ...In eukaryotes, accurate protein synthesis relies on a family of translational GTPases that pair with specific decoding factors to decipher the mRNA code on ribosomes. We present structures of the mammalian ribosome engaged with decoding factor⋅GTPase complexes representing intermediates of translation elongation (aminoacyl-tRNA⋅eEF1A), termination (eRF1⋅eRF3), and ribosome rescue (Pelota⋅Hbs1l). Comparative analyses reveal that each decoding factor exploits the plasticity of the ribosomal decoding center to differentially remodel ribosomal proteins and rRNA. This leads to varying degrees of large-scale ribosome movements and implies distinct mechanisms for communicating information from the decoding center to each GTPase. Additional structural snapshots of the translation termination pathway reveal the conformational changes that choreograph the accommodation of decoding factors into the peptidyl transferase center. Our results provide a structural framework for how different states of the mammalian ribosome are selectively recognized by the appropriate decoding factor⋅GTPase complex to ensure translational fidelity. | ||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 13.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 106 KB 106 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.6 KB | Display | ![]() |
Images | ![]() | 189 KB | ||
Filedesc metadata | ![]() | 21.4 KB | ||
Others | ![]() ![]() | 247.8 MB 248.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5lzyMC ![]() 4129C ![]() 4130C ![]() 4131C ![]() 4132C ![]() 4133C ![]() 4134C ![]() 4135C ![]() 4137C ![]() 5lzsC ![]() 5lztC ![]() 5lzuC ![]() 5lzvC ![]() 5lzwC ![]() 5lzxC ![]() 5lzzC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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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 | Postprocessed, sharpened map. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.34 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Half map: Half map 1.
File | emd_4136_half_map_1.map | ||||||||||||
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Annotation | Half map 1. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 2.
File | emd_4136_half_map_2.map | ||||||||||||
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Annotation | Half map 2. | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : Affinity-purified 80S ribosome-nascent chain complex reconstitute...
+Supramolecule #1: Affinity-purified 80S ribosome-nascent chain complex reconstitute...
+Macromolecule #1: uL2
+Macromolecule #2: uL3
+Macromolecule #3: uL4
+Macromolecule #4: 60S ribosomal protein L5
+Macromolecule #5: 60S ribosomal protein L6
+Macromolecule #6: uL30
+Macromolecule #7: eL8
+Macromolecule #8: uL6
+Macromolecule #9: Ribosomal protein L10 (Predicted)
+Macromolecule #10: uL5
+Macromolecule #11: eL13
+Macromolecule #12: eL14
+Macromolecule #13: Ribosomal protein L15
+Macromolecule #14: uL13
+Macromolecule #15: uL22
+Macromolecule #16: eL18
+Macromolecule #17: eL19
+Macromolecule #18: eL20
+Macromolecule #19: eL21
+Macromolecule #20: eL22
+Macromolecule #21: eL14
+Macromolecule #22: eL24
+Macromolecule #23: eL23
+Macromolecule #24: uL24
+Macromolecule #25: 60S ribosomal protein L27
+Macromolecule #26: uL15
+Macromolecule #27: eL29
+Macromolecule #28: eL30
+Macromolecule #29: eL31
+Macromolecule #30: eL32
+Macromolecule #31: eL33
+Macromolecule #32: eL34
+Macromolecule #33: uL29
+Macromolecule #34: 60S ribosomal protein L36
+Macromolecule #35: eL37
+Macromolecule #36: eL38
+Macromolecule #37: eL39
+Macromolecule #38: eL40
+Macromolecule #39: eL41
+Macromolecule #40: eL42
+Macromolecule #41: eL43
+Macromolecule #42: eL28
+Macromolecule #43: uL10
+Macromolecule #44: uL11
+Macromolecule #50: uS2
+Macromolecule #51: 40S ribosomal protein S3a
+Macromolecule #52: uS5
+Macromolecule #53: uS3
+Macromolecule #54: eS4
+Macromolecule #55: uS7
+Macromolecule #56: 40S ribosomal protein S6
+Macromolecule #57: eS7
+Macromolecule #58: eS8
+Macromolecule #59: Ribosomal protein S9 (Predicted)
+Macromolecule #60: eS10
+Macromolecule #61: uS17
+Macromolecule #62: 40S ribosomal protein S12
+Macromolecule #63: uS15
+Macromolecule #64: uS11
+Macromolecule #65: uS19
+Macromolecule #66: uS9
+Macromolecule #67: eS17
+Macromolecule #68: uS13
+Macromolecule #69: eS19
+Macromolecule #70: uS10
+Macromolecule #71: eS21
+Macromolecule #72: uS8
+Macromolecule #73: uS12
+Macromolecule #74: eS24
+Macromolecule #75: eS25
+Macromolecule #76: eS26
+Macromolecule #77: 40S ribosomal protein S27
+Macromolecule #78: eS28
+Macromolecule #79: uS14
+Macromolecule #80: eS30
+Macromolecule #81: eS31
+Macromolecule #82: RACK1
+Macromolecule #84: Protein pelota homolog
+Macromolecule #85: HBS1-like protein
+Macromolecule #45: tRNA
+Macromolecule #46: 28S ribosomal RNA
+Macromolecule #47: 5S ribosomal RNA
+Macromolecule #48: 5.8S ribosomal RNA
+Macromolecule #49: 18S ribosomal RNA
+Macromolecule #83: mRNA (polyadenylated)
+Macromolecule #86: MAGNESIUM ION
+Macromolecule #87: ZINC ION
+Macromolecule #88: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.2 mg/mL | |||||||||||||||
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Buffer | pH: 7.4 Component:
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Grid | Model: Quantifoil R2/2 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 5 / Pretreatment - Type: GLOW DISCHARGE | |||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III Details: 3 ul aliquots were applied to the grid and incubated for 30 s, before blotting for 3s to remove excess solution.. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Detector mode: INTEGRATING / Number real images: 1112 / Average exposure time: 1.0 sec. / Average electron dose: 30.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 70.0 µm / Calibrated magnification: 104478 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 59000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: RECIPROCAL / Protocol: OTHER / Overall B value: 63.6 / Target criteria: FSCaverage |
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Output model | ![]() PDB-5lzy: |