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Open data
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Basic information
| Entry | Database: PDB / ID: 9ed0 | ||||||||||||||||||||||||||||||
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| Title | Human LARP1 bound to the 40S small ribosomal subunit | ||||||||||||||||||||||||||||||
Components |
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Keywords | RIBOSOME / LARP1 / translation / mRNA / TOP | ||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationcellular response to rapamycin / translation activator activity / eukaryotic initiation factor 4E binding / RNA cap binding / response to amino acid starvation / RNA 7-methylguanosine cap binding / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair ...cellular response to rapamycin / translation activator activity / eukaryotic initiation factor 4E binding / RNA cap binding / response to amino acid starvation / RNA 7-methylguanosine cap binding / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of gastrulation / protein tyrosine kinase inhibitor activity / positive regulation of DNA-templated transcription initiation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / TNFR1-mediated ceramide production / negative regulation of RNA splicing / mRNA stabilization / neural crest cell differentiation / supercoiled DNA binding / post-transcriptional regulation of gene expression / cytoplasmic translational initiation / NF-kappaB complex / negative regulation of DNA repair / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / rRNA modification in the nucleus and cytosol / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / 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 / ion channel inhibitor activity / protein kinase A binding / laminin receptor activity / Ribosomal scanning and start codon recognition / pigmentation / positive regulation of mitochondrial depolarization / Translation initiation complex formation / negative regulation of Wnt signaling pathway / TORC1 signaling / fibroblast growth factor binding / Protein hydroxylation / monocyte chemotaxis / BH3 domain binding / negative regulation of translational frameshifting / positive regulation of macroautophagy / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / SARS-CoV-1 modulates host translation machinery / positive regulation of GTPase activity / mTORC1-mediated signalling / ribosomal small subunit binding / TOR signaling / iron-sulfur cluster binding / positive regulation of translational initiation / Peptide chain elongation / regulation of cell division / cellular response to ethanol / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / negative regulation of protein binding / Eukaryotic Translation Termination / protein serine/threonine kinase inhibitor activity / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response / Viral mRNA Translation / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / positive regulation of signal transduction by p53 class mediator / negative regulation of ubiquitin-dependent protein catabolic process / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / positive regulation of viral genome replication / Major pathway of rRNA processing in the nucleolus and cytosol / regulation of translational fidelity / positive regulation of microtubule polymerization / phagocytic cup / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / positive regulation of intrinsic apoptotic signaling pathway / spindle assembly / Protein methylation / Nuclear events stimulated by ALK signaling in cancer / 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) / translation regulator activity / rough endoplasmic reticulum / positive regulation of cell cycle / ribosomal small subunit export from nucleus / laminin binding / translation initiation factor binding / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal Similarity search - Function | ||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | ||||||||||||||||||||||||||||||
Authors | Dong, W. / Kaufhold, R. / Brito Querido, J. | ||||||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Cell / Year: 2025Title: SPIDR enables multiplexed mapping of RNA-protein interactions and uncovers a mechanism for selective translational suppression upon cell stress. Authors: Erica Wolin / Jimmy K Guo / Mario R Blanco / Isabel N Goronzy / Darvesh Gorhe / Wenzhao Dong / Andrew A Perez / Abdurrahman Keskin / Elizabeth Valenzuela / Ahmed A Abdou / Carl R Urbinati / ...Authors: Erica Wolin / Jimmy K Guo / Mario R Blanco / Isabel N Goronzy / Darvesh Gorhe / Wenzhao Dong / Andrew A Perez / Abdurrahman Keskin / Elizabeth Valenzuela / Ahmed A Abdou / Carl R Urbinati / Ross Kaufhold / H Tomas Rube / Jailson Brito Querido / Mitchell Guttman / Marko Jovanovic / ![]() Abstract: RNA-binding proteins (RBPs) regulate all stages of the mRNA life cycle, yet current methods generally map RNA targets of RBPs one protein at a time. To overcome this limitation, we developed SPIDR ...RNA-binding proteins (RBPs) regulate all stages of the mRNA life cycle, yet current methods generally map RNA targets of RBPs one protein at a time. To overcome this limitation, we developed SPIDR (split-and-pool identification of RBP targets), a highly multiplexed split-pool method that profiles the binding sites of dozens of RBPs simultaneously. SPIDR identifies precise, single-nucleotide binding sites for diverse classes of RBPs. Using SPIDR, we uncovered an interaction between LARP1 and the 18S rRNA and resolved this interaction to the mRNA entry channel of the 40S ribosome using cryoelectron microscopy (cryo-EM), providing a potential mechanistic explanation for LARP1's role in translational suppression. We explored changes in RBP binding upon mTOR inhibition and identified that 4EBP1 preferentially associates with translationally repressed mRNAs upon mTOR inhibition. SPIDR has the potential to significantly advance our understanding of RNA biology by enabling rapid, de novo discovery of RNA-protein interactions at an unprecedented scale. | ||||||||||||||||||||||||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9ed0.cif.gz | 1.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9ed0.ent.gz | 1.5 MB | Display | PDB format |
| PDBx/mmJSON format | 9ed0.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ed/9ed0 ftp://data.pdbj.org/pub/pdb/validation_reports/ed/9ed0 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 47929MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-RNA chain , 1 types, 1 molecules 2
| #1: RNA chain | Mass: 603490.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) |
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+Small ribosomal subunit protein ... , 30 types, 30 molecules ABCDEFGHIJKLMNOPQRSTUVWZabcden
-40S ribosomal protein ... , 2 types, 2 molecules XY
| #25: Protein | Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62266 |
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| #26: Protein | Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62847 |
-Protein , 3 types, 3 molecules fgh
| #33: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979 |
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| #34: Protein | Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63244 |
| #35: Protein | Mass: 123705.344 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: LARP1, KIAA0731, LARP / Cell line (production host): Expi293 cells / Production host: Homo sapiens (human) / References: UniProt: Q6PKG0 |
-Non-polymers , 3 types, 166 molecules 




| #37: Chemical | ChemComp-K / #38: Chemical | ChemComp-MG / #39: Chemical | |
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-Details
| Has ligand of interest | Y |
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| Has protein modification | N |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: 40S-LARP1 / Type: COMPLEX Details: Human LARP1 bound to the 40S small ribosomal subunit Entity ID: #2-#5, #7-#12, #14-#27, #29-#30, #32, #34-#36 / Source: NATURAL |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: GRAPHENE OXIDE / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 93 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: OTHER / Nominal defocus max: 3500 nm / Nominal defocus min: 1200 nm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 1 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.21.2_5419: / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 124913 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
United States, 1items
Citation
PDBj





















































FIELD EMISSION GUN