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- EMDB-37991: Dormant Ribosome with eIF5A,eEF2 and SERBP1 -

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Basic information

Entry
Database: EMDB / ID: EMD-37991
TitleDormant Ribosome with eIF5A,eEF2 and SERBP1
Map data
Sample
  • Complex: Dormant Ribosome
KeywordsRibosome / eEF2 / eIF5A
Function / homology
Function and homology information


Synthesis of diphthamide-EEF2 / positive regulation of translational termination / translation at postsynapse / Hypusine synthesis from eIF5A-lysine / annulate lamellae / ribosome hibernation / translation elongation factor binding / positive regulation of translational elongation / PML body organization / response to folic acid ...Synthesis of diphthamide-EEF2 / positive regulation of translational termination / translation at postsynapse / Hypusine synthesis from eIF5A-lysine / annulate lamellae / ribosome hibernation / translation elongation factor binding / positive regulation of translational elongation / PML body organization / response to folic acid / SUMO binding / translation at presynapse / exit from mitosis / positive regulation of cytoplasmic translation / optic nerve development / response to insecticide / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus / regulation of G1 to G0 transition / retinal ganglion cell axon guidance / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / positive regulation of ubiquitin-protein transferase activity / protein-DNA complex disassembly / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of gastrulation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / aggresome / positive regulation of DNA-templated transcription initiation / alpha-beta T cell differentiation / TNFR1-mediated ceramide production / positive regulation of DNA damage response, signal transduction by p53 class mediator / GAIT complex / negative regulation of RNA splicing / TORC2 complex binding / neural crest cell differentiation / supercoiled DNA binding / NF-kappaB complex / negative regulation of DNA repair / G1 to G0 transition / cytoplasmic translational initiation / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / middle ear morphogenesis / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / rRNA modification in the nucleus and cytosol / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / negative regulation of phagocytosis / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / Formation of the ternary complex, and subsequently, the 43S complex / Uptake and function of diphtheria toxin / lncRNA binding / ion channel inhibitor activity / laminin receptor activity / protein kinase A binding / homeostatic process / pigmentation / Ribosomal scanning and start codon recognition / positive regulation of mitochondrial depolarization / Translation initiation complex formation / macrophage chemotaxis / lung morphogenesis / negative regulation of Wnt signaling pathway / positive regulation of natural killer cell proliferation / fibroblast growth factor binding / male meiosis I / monocyte chemotaxis / BH3 domain binding / Protein hydroxylation / negative regulation of translational frameshifting / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / TOR signaling / positive regulation of GTPase activity / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / iron-sulfur cluster binding / regulation of cell division / skeletal muscle cell differentiation / Peptide chain elongation / translational elongation / cellular response to ethanol / Selenocysteine synthesis / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Formation of a pool of free 40S subunits / negative regulation of protein binding / protein serine/threonine kinase inhibitor activity
Similarity search - Function
Intracellular hyaluronan-binding protein 4, N-terminal domain / Intracellular hyaluronan-binding protein 4 N-terminal / Translation elongation factor, IF5A, hypusine site / Eukaryotic initiation factor 5A hypusine signature. / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold / : / Hyaluronan / mRNA binding family / Translation initiation factor 5A-like, N-terminal / Translation elongation factor, IF5A C-terminal / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold ...Intracellular hyaluronan-binding protein 4, N-terminal domain / Intracellular hyaluronan-binding protein 4 N-terminal / Translation elongation factor, IF5A, hypusine site / Eukaryotic initiation factor 5A hypusine signature. / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold / : / Hyaluronan / mRNA binding family / Translation initiation factor 5A-like, N-terminal / Translation elongation factor, IF5A C-terminal / Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold / Translation elongation factor IF5A-like / RNA binding protein HABP4/SERBP1 / Hyaluronan/mRNA-binding protein / Hyaluronan / mRNA binding family / Elongation Factor G, domain II / Elongation Factor G, domain III / 40S ribosomal protein SA / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / Ribosomal protein L6, N-terminal / 40S ribosomal protein SA, C-terminal domain / Ribosomal protein L6, N-terminal domain / 40S ribosomal protein SA C-terminus / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / Ubiquitin-like protein FUBI / EF-G domain III/V-like / Ribosomal protein L30e / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / : / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / Ribosomal protein L23 / Ribosomal protein L2, archaeal-type / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / Ribosomal protein L1, conserved site / Ribosomal protein L1 signature. / Ribosomal protein L1 / metallochaperone-like domain / TRASH domain / : / Ribosomal protein S26e signature. / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Translation elongation factor EFTu-like, domain 2 / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L1-like / Ribosomal protein L1/ribosomal biogenesis protein / Ribosomal protein L1p/L10e family / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Ribosomal protein S2, eukaryotic / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal protein L19, eukaryotic / Ribosomal protein L10e, conserved site / : / Ribosomal protein L10e signature. / Ribosomal protein L19/L19e conserved site / Ribosomal protein L19e signature. / Ribosomal protein L6e signature. / Ribosomal protein L44e signature. / 40S Ribosomal protein S10 / 60S ribosomal protein L18a/ L20, eukaryotes / Elongation factor Tu domain 2 / Ribosomal protein L10e / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature.
Similarity search - Domain/homology
Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Elongation factor 2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL6 ...Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Elongation factor 2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein eL22 / Large ribosomal subunit protein uL4 / Small ribosomal subunit protein eS19 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL13 / Small ribosomal subunit protein eS27 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein eL21 / Large ribosomal subunit protein eL28 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL34 / Large ribosomal subunit protein eL14 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein eS1 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein eL15 / Large ribosomal subunit protein eL27 / Large ribosomal subunit protein eL43 / Large ribosomal subunit protein eL37 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein eL8 / Small ribosomal subunit protein eS4, X isoform / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein eS6 / Large ribosomal subunit protein uL14 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein eS24 / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein eS28 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein eL31 / Large ribosomal subunit protein uL1 / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL2 / Small ribosomal subunit protein eS32 / Ubiquitin-ribosomal protein eL40 fusion protein / Large ribosomal subunit protein eL38 / Small ribosomal subunit protein eS21 / Eukaryotic translation initiation factor 5A-1 / Small ribosomal subunit protein RACK1 / Large ribosomal subunit protein eL24 / Large ribosomal subunit protein eL42 / Large ribosomal subunit protein eL19 / Large ribosomal subunit protein eL20 / Large ribosomal subunit protein eL6 / Large ribosomal subunit protein eL18 / SERPINE1 mRNA-binding protein 1 / Ribosomal protein uL16-like / Large ribosomal subunit protein eL36
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsDu M / Zeng F
Funding support China, 4 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)92169111 China
Shenzhen Science and Technology ProgramJCYJ20220530115210023 China
National Natural Science Foundation of China (NSFC)32100977 China
National Natural Science Foundation of China (NSFC)32171200 China
CitationJournal: 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
DepositionNov 7, 2023-
Header (metadata) releaseJan 31, 2024-
Map releaseJan 31, 2024-
UpdateAug 21, 2024-
Current statusAug 21, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_37991.png

Downloads & links

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Map

FileDownload / File: emd_37991.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

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AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 448 pix.
= 483.84 Å		1.08 Å/pix.
x 448 pix.
= 483.84 Å		1.08 Å/pix.
x 448 pix.
= 483.84 Å

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.08 Å
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Histogram (log scale)
Contour LevelBy AUTHOR: 0.005
Minimum - Maximum-0.0343023 - 0.06384397
Average (Standard dev.)0.000031962933 (±0.0024700884)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions448448448
Spacing448448448
CellA=B=C: 483.84003 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_37991_half_map_1.map
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Half map: #1

Fileemd_37991_half_map_2.map
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Sample components

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Entire : Dormant Ribosome

EntireName: Dormant Ribosome
Components
  • Complex: Dormant Ribosome

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Supramolecule #1: Dormant Ribosome

SupramoleculeName: Dormant Ribosome / type: complex / ID: 1 / Parent: 0 / Details: dormant ribosome with Stm1, eEF2, eIF5A
Source (natural)Organism: Homo sapiens (human)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.4
Details: 50mM HEPES, pH 7.4, 100 mM KOAc, 5 mM Mg(OAc)2, 1mM DTT
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: OTHER
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK II

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 30.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination 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

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6z6m

Final reconstructionAlgorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 74020
Initial angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 3.1.0)
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 3.1.0)
Final 3D classificationSoftware - Name: RELION (ver. 3.1.0)
FSC plot (resolution estimation)

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