+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-37992 | |||||||||||||||
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Title | Dormant Ribosome with eEF2 and SERBP1 | |||||||||||||||
Map data | ||||||||||||||||
Sample |
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Keywords | Ribosome / eEF2 / E-tRNA | |||||||||||||||
Function / homology | Function and homology information Synthesis of diphthamide-EEF2 / membraneless organelle / ribosome hibernation / translation elongation factor binding / PML body organization / SUMO binding / eukaryotic 80S initiation complex / : / negative regulation of protein neddylation / translation at presynapse ...Synthesis of diphthamide-EEF2 / membraneless organelle / ribosome hibernation / translation elongation factor binding / PML body organization / SUMO binding / eukaryotic 80S initiation complex / : / negative regulation of protein neddylation / translation at presynapse / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / axial mesoderm development / ribosomal protein import into nucleus / protein tyrosine kinase inhibitor activity / positive regulation of respiratory burst involved in inflammatory response / negative regulation of formation of translation preinitiation complex / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of gastrulation / nucleolus organization / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / 90S preribosome assembly / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / positive regulation of Golgi to plasma membrane protein transport / TNFR1-mediated ceramide production / TORC2 complex binding / negative regulation of RNA splicing / negative regulation of DNA repair / GAIT complex / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / supercoiled DNA binding / oxidized purine DNA binding / neural crest cell differentiation / NF-kappaB complex / middle ear morphogenesis / ubiquitin-like protein conjugating enzyme binding / aggresome / regulation of establishment of cell polarity / positive regulation of ubiquitin-protein transferase activity / negative regulation of phagocytosis / A band / rRNA modification in the nucleus and cytosol / erythrocyte homeostasis / Formation of the ternary complex, and subsequently, the 43S complex / alpha-beta T cell differentiation / cytoplasmic side of rough endoplasmic reticulum membrane / regulation of G1 to G0 transition / exit from mitosis / laminin receptor activity / 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 / pigmentation / protein kinase A binding / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / negative regulation of ubiquitin protein ligase activity / optic nerve development / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / Uptake and function of diphtheria toxin / response to aldosterone / Translation initiation complex formation / retinal ganglion cell axon guidance / mammalian oogenesis stage / fibroblast growth factor binding / homeostatic process / positive regulation of mitochondrial depolarization / G1 to G0 transition / activation-induced cell death of T cells / macrophage chemotaxis / positive regulation of T cell receptor signaling pathway / lung morphogenesis / negative regulation of peptidyl-serine phosphorylation / iron-sulfur cluster binding / negative regulation of Wnt signaling pathway / positive regulation of activated T cell proliferation / male meiosis I / monocyte chemotaxis / Protein hydroxylation / regulation of cell division / BH3 domain binding / cysteine-type endopeptidase activator activity involved in apoptotic process / mTORC1-mediated signalling / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / positive regulation of signal transduction by p53 class mediator / Formation of a pool of free 40S subunits / blastocyst development / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / phagocytic cup / negative regulation of respiratory burst involved in inflammatory response / Response of EIF2AK4 (GCN2) to amino acid deficiency / translational elongation / SRP-dependent cotranslational protein targeting to membrane Similarity search - Function | |||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||||||||
Authors | Du M / Zeng F | |||||||||||||||
Funding support | China, 4 items
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Citation | Journal: Front Mol Biosci / Year: 2024 Title: Implication of Stm1 in the protection of eIF5A, eEF2 and tRNA through dormant ribosomes. Authors: Mengtan Du / Xin Li / Wanlin Dong / Fuxing Zeng / Abstract: Dormant ribosomes are typically associated with preservation factors to protect themselves from degradation under stress conditions. Stm1/SERBP1 is one such protein that anchors the 40S and 60S ... Dormant ribosomes are typically associated with preservation factors to protect themselves from degradation under stress conditions. Stm1/SERBP1 is one such protein that anchors the 40S and 60S subunits together. Several proteins and tRNAs bind to this complex as well, yet the molecular mechanisms remain unclear. Here, we reported the cryo-EM structures of five newly identified Stm1/SERBP1-bound ribosomes. These structures highlighted that eIF5A, eEF2, and tRNA might bind to dormant ribosomes under stress to avoid their own degradation, thus facilitating protein synthesis upon the restoration of growth conditions. In addition, Ribo-seq data analysis reflected the upregulation of nutrient, metabolism, and external-stimulus-related pathways in the strain, suggesting possible regulatory roles of Stm1. The knowledge generated from the present work will facilitate in better understanding the molecular mechanism of dormant ribosomes. | |||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_37992.map.gz | 61.7 MB | EMDB map data format | |
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Header (meta data) | emd-37992-v30.xml emd-37992.xml | 13.8 KB 13.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_37992_fsc.xml | 15.8 KB | Display | FSC data file |
Images | emd_37992.png | 80.7 KB | ||
Filedesc metadata | emd-37992.cif.gz | 4 KB | ||
Others | emd_37992_half_map_1.map.gz emd_37992_half_map_2.map.gz | 274.3 MB 274.1 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-37992 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-37992 | HTTPS FTP |
-Validation report
Summary document | emd_37992_validation.pdf.gz | 971.5 KB | Display | EMDB validaton report |
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Full document | emd_37992_full_validation.pdf.gz | 971 KB | Display | |
Data in XML | emd_37992_validation.xml.gz | 23.5 KB | Display | |
Data in CIF | emd_37992_validation.cif.gz | 31.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37992 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37992 | HTTPS FTP |
-Related structure data
Related structure data | 8y0xMC 8y0uC 8y0wC C: citing same article (ref.) M: atomic model generated by this map |
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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_37992.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_37992_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_37992_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : dormant ribosome
Entire | Name: dormant ribosome |
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Components |
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-Supramolecule #1: dormant ribosome
Supramolecule | Name: dormant ribosome / type: complex / ID: 1 / Parent: 0 / Details: SERBP1 and eEF2 bound to dormant 80S ribosome |
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Source (natural) | Organism: Homo sapiens (human) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 Details: 50mM HEPES, pH 7.4, 100 mM KOAc, 5 mM Mg(OAc)2, 1mM DTT |
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: OTHER |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK II |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 30.0 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: 2.5 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |