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- PDB-8bgu: human MDM2-5S RNP -

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Basic information

Entry
Database: PDB / ID: 8bgu
Titlehuman MDM2-5S RNP
Components
  • 5S rRNA
  • 60S ribosomal protein L11
  • 60S ribosomal protein L5
  • E3 ubiquitin-protein ligase Mdm2
KeywordsRNA BINDING PROTEIN / 5S RNP / Mdm2
Function / homology
Function and homology information


cellular response to vitamin B1 / response to formaldehyde / response to water-immersion restraint stress / traversing start control point of mitotic cell cycle / negative regulation of intrinsic apoptotic signaling pathway by p53 class mediator / response to ether / negative regulation of signal transduction by p53 class mediator / fibroblast activation / atrial septum development / negative regulation of protein neddylation ...cellular response to vitamin B1 / response to formaldehyde / response to water-immersion restraint stress / traversing start control point of mitotic cell cycle / negative regulation of intrinsic apoptotic signaling pathway by p53 class mediator / response to ether / negative regulation of signal transduction by p53 class mediator / fibroblast activation / atrial septum development / negative regulation of protein neddylation / receptor serine/threonine kinase binding / Trafficking of AMPA receptors / positive regulation of vascular associated smooth muscle cell migration / peroxisome proliferator activated receptor binding / SUMO transferase activity / negative regulation of protein processing / response to iron ion / response to steroid hormone / NEDD8 ligase activity / AKT phosphorylates targets in the cytosol / atrioventricular valve morphogenesis / cellular response to peptide hormone stimulus / ventricular septum development / endocardial cushion morphogenesis / negative regulation of ubiquitin protein ligase activity / positive regulation of muscle cell differentiation / SUMOylation of ubiquitinylation proteins / cellular response to alkaloid / blood vessel development / regulation of protein catabolic process / cardiac septum morphogenesis / Constitutive Signaling by AKT1 E17K in Cancer / Peptide chain elongation / ligase activity / Selenocysteine synthesis / positive regulation of signal transduction by p53 class mediator / negative regulation of DNA damage response, signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / Formation of a pool of free 40S subunits / response to magnesium ion / Eukaryotic Translation Termination / SUMOylation of transcription factors / Response of EIF2AK4 (GCN2) to amino acid deficiency / protein sumoylation / SRP-dependent cotranslational protein targeting to membrane / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Viral mRNA Translation / protein localization to nucleus / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / GTP hydrolysis and joining of the 60S ribosomal subunit / cellular response to UV-C / Major pathway of rRNA processing in the nucleolus and cytosol / blood vessel remodeling / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / cellular response to estrogen stimulus / protein targeting / protein autoubiquitination / cellular response to actinomycin D / ribonucleoprotein complex binding / cytosolic ribosome / positive regulation of vascular associated smooth muscle cell proliferation / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / NPAS4 regulates expression of target genes / transcription repressor complex / regulation of heart rate / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of mitotic cell cycle / positive regulation of protein export from nucleus / response to cocaine / proteolysis involved in protein catabolic process / regulation of signal transduction by p53 class mediator / ribosomal large subunit biogenesis / ubiquitin binding / mRNA 3'-UTR binding / positive regulation of translation / Stabilization of p53 / Regulation of RUNX3 expression and activity / protein destabilization / RING-type E3 ubiquitin transferase / establishment of protein localization / Oncogene Induced Senescence / Regulation of TP53 Activity through Methylation / ribosomal large subunit assembly / response to toxic substance / cellular response to gamma radiation / cellular response to growth factor stimulus / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / cellular response to hydrogen peroxide / protein polyubiquitination / rRNA processing / ubiquitin-protein transferase activity / endocytic vesicle membrane / ubiquitin protein ligase activity / disordered domain specific binding / Signaling by ALK fusions and activated point mutants / Regulation of TP53 Degradation / p53 binding / positive regulation of proteasomal ubiquitin-dependent protein catabolic process
Similarity search - Function
E3 ubiquitin-protein ligase Mdm2 / MDM2, modified RING finger, HC subclass / p53 negative regulator Mdm2/Mdm4 / SWIB/MDM2 domain / SWIB/MDM2 domain / SWIB/MDM2 domain profile. / SWIB/MDM2 domain superfamily / Zn-finger in Ran binding protein and others / Zinc finger, C3HC4 type (RING finger) / Zinc finger RanBP2 type profile. ...E3 ubiquitin-protein ligase Mdm2 / MDM2, modified RING finger, HC subclass / p53 negative regulator Mdm2/Mdm4 / SWIB/MDM2 domain / SWIB/MDM2 domain / SWIB/MDM2 domain profile. / SWIB/MDM2 domain superfamily / Zn-finger in Ran binding protein and others / Zinc finger, C3HC4 type (RING finger) / Zinc finger RanBP2 type profile. / Zinc finger RanBP2-type signature. / Zinc finger, RanBP2-type superfamily / Zinc finger, RanBP2-type / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein L5 eukaryotic/L18 archaeal / Ribosomal large subunit proteins 60S L5, and 50S L18 / Zinc finger RING-type profile. / Zinc finger, RING-type / Ribosomal protein L5, conserved site / Ribosomal protein L5 signature. / Ribosomal protein L5, N-terminal / Ribosomal protein L5 / Ribosomal protein L5, C-terminal / ribosomal L5P family C-terminus / Ribosomal protein L5 / Ribosomal protein L5 domain superfamily / Zinc finger, RING/FYVE/PHD-type
Similarity search - Domain/homology
: / RNA / RNA (> 10) / RNA (> 100) / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL5 / E3 ubiquitin-protein ligase Mdm2
Similarity search - Component
Biological speciesHomo sapiens (human)
Saccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.1 Å
AuthorsCastillo, N. / Thoms, M. / Flemming, D. / Hammaren, H.M. / Buschauer, R. / Ameismeier, M. / Bassler, J. / Beck, M. / Beckmann, R. / Hurt, E.
Funding support Germany, European Union, 3items
OrganizationGrant numberCountry
German Research Foundation (DFG)RK1721 Germany
German Research Foundation (DFG)HU363/15-2 Germany
European Research Council (ERC)885711European Union
CitationJournal: Nat Struct Mol Biol / Year: 2023
Title: Structure of nascent 5S RNPs at the crossroad between ribosome assembly and MDM2-p53 pathways.
Authors: Nestor Miguel Castillo Duque de Estrada / Matthias Thoms / Dirk Flemming / Henrik M Hammaren / Robert Buschauer / Michael Ameismeier / Jochen Baßler / Martin Beck / Roland Beckmann / Ed Hurt /
Abstract: The 5S ribonucleoprotein (RNP) is assembled from its three components (5S rRNA, Rpl5/uL18 and Rpl11/uL5) before being incorporated into the pre-60S subunit. However, when ribosome synthesis is ...The 5S ribonucleoprotein (RNP) is assembled from its three components (5S rRNA, Rpl5/uL18 and Rpl11/uL5) before being incorporated into the pre-60S subunit. However, when ribosome synthesis is disturbed, a free 5S RNP can enter the MDM2-p53 pathway to regulate cell cycle and apoptotic signaling. Here we reconstitute and determine the cryo-electron microscopy structure of the conserved hexameric 5S RNP with fungal or human factors. This reveals how the nascent 5S rRNA associates with the initial nuclear import complex Syo1-uL18-uL5 and, upon further recruitment of the nucleolar factors Rpf2 and Rrs1, develops into the 5S RNP precursor that can assemble into the pre-ribosome. In addition, we elucidate the structure of another 5S RNP intermediate, carrying the human ubiquitin ligase Mdm2, which unravels how this enzyme can be sequestered from its target substrate p53. Our data provide molecular insight into how the 5S RNP can mediate between ribosome biogenesis and cell proliferation.
History
DepositionOct 28, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 14, 2023Provider: repository / Type: Initial release
Revision 1.1Jun 21, 2023Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.name
Revision 1.2Aug 30, 2023Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
F: E3 ubiquitin-protein ligase Mdm2
3: 5S rRNA
A: 60S ribosomal protein L5
B: 60S ribosomal protein L11
hetero molecules


Theoretical massNumber of molelcules
Total (without water)149,0265
Polymers148,9604
Non-polymers651
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: cross-linking, gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein E3 ubiquitin-protein ligase Mdm2 / Double minute 2 protein / Hdm2 / Oncoprotein Mdm2 / RING-type E3 ubiquitin transferase Mdm2 / p53- ...Double minute 2 protein / Hdm2 / Oncoprotein Mdm2 / RING-type E3 ubiquitin transferase Mdm2 / p53-binding protein Mdm2


Mass: 55293.758 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: MDM2 / Production host: Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: Q00987, RING-type E3 ubiquitin transferase
#2: RNA chain 5S rRNA


Mass: 38951.105 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: GenBank: 1039023754
#3: Protein 60S ribosomal protein L5 / Large ribosomal subunit protein uL18


Mass: 34426.789 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RPL5, MSTP030 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P46777
#4: Protein 60S ribosomal protein L11 / CLL-associated antigen KW-12 / Large ribosomal subunit protein uL5


Mass: 20288.465 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RPL11 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P62913
#5: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: human MDM2-5S RNP / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Saccharomyces cerevisiae (brewer's yeast)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 4000 nm / Nominal defocus min: 400 nm
Image recordingElectron dose: 38 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 219620 / Symmetry type: POINT

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