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Open data
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Basic information
Entry | Database: PDB / ID: 8ir1 | ||||||
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Title | human nuclear pre-60S ribosomal particle - State A | ||||||
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![]() | RIBOSOME / GNL2 / nuclear / pre-60S | ||||||
Function / homology | ![]() RNA 2'-O-methyltransferase activity / positive regulation of protein localization to chromosome, telomeric region / basal RNA polymerase II transcription machinery binding / rRNA (uridine-2'-O-)-methyltransferase activity / dendrite extension / inner cell mass cell differentiation / rRNA (guanine) methyltransferase activity / preribosome binding / hematopoietic stem cell homeostasis / lamin filament ...RNA 2'-O-methyltransferase activity / positive regulation of protein localization to chromosome, telomeric region / basal RNA polymerase II transcription machinery binding / rRNA (uridine-2'-O-)-methyltransferase activity / dendrite extension / inner cell mass cell differentiation / rRNA (guanine) methyltransferase activity / preribosome binding / hematopoietic stem cell homeostasis / lamin filament / regulation of fatty acid biosynthetic process / regulation of Notch signaling pathway / RNA methylation / regulation of megakaryocyte differentiation / negative regulation of G2/M transition of mitotic cell cycle / positive regulation of protein sumoylation / miRNA-mediated post-transcriptional gene silencing / miRNA-mediated gene silencing by inhibition of translation / translation at presynapse / eukaryotic 80S initiation complex / negative regulation of protein neddylation / regulation of G1 to G0 transition / axial mesoderm development / negative regulation of formation of translation preinitiation complex / regulation of translation involved in cellular response to UV / ribosomal protein import into nucleus / protein localization to nucleolus / protein-DNA complex disassembly / 90S preribosome assembly / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / rRNA methylation / GAIT complex / positive regulation of DNA damage response, signal transduction by p53 class mediator / TORC2 complex binding / alpha-beta T cell differentiation / G1 to G0 transition / regulation of glycolytic process / skeletal system morphogenesis / regulation of reactive oxygen species metabolic process / middle ear morphogenesis / negative regulation of cell-cell adhesion / cytoplasmic side of rough endoplasmic reticulum membrane / stem cell division / mitotic metaphase chromosome alignment / preribosome, small subunit precursor / maturation of 5.8S rRNA / negative regulation of ubiquitin protein ligase activity / stem cell population maintenance / homeostatic process / negative regulation of DNA replication / positive regulation of dendritic spine development / macrophage chemotaxis / lung morphogenesis / positive regulation of telomere maintenance / ribosomal large subunit binding / positive regulation of natural killer cell proliferation / Protein hydroxylation / preribosome, large subunit precursor / nuclear-transcribed mRNA catabolic process / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / negative regulation of mitotic cell cycle / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / blastocyst development / cellular response to actinomycin D / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / SRP-dependent cotranslational protein targeting to membrane / Viral mRNA Translation / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / protein localization to nucleus / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / positive regulation of protein binding / somitogenesis / protein targeting / Major pathway of rRNA processing in the nucleolus and cytosol / ribosomal subunit export from nucleus / hematopoietic progenitor cell differentiation / 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) / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / maturation of LSU-rRNA / rough endoplasmic reticulum / Notch signaling pathway / MDM2/MDM4 family protein binding / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / negative regulation of protein ubiquitination / translation initiation factor activity / cytosolic ribosome / ossification / cellular response to interleukin-4 / assembly of large subunit precursor of preribosome / Transferases; Transferring one-carbon groups; Methyltransferases / negative regulation of cell migration / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||
![]() | Zhang, Y. / Gao, N. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Visualizing the nucleoplasmic maturation of human pre-60S ribosomal particles. Authors: Yunyang Zhang / Xiaomeng Liang / Sha Luo / Yan Chen / Yu Li / Chengying Ma / Ningning Li / Ning Gao / ![]() Abstract: Eukaryotic ribosome assembly is a highly orchestrated process that involves over two hundred protein factors. After early assembly events on nascent rRNA in the nucleolus, pre-60S particles undergo ...Eukaryotic ribosome assembly is a highly orchestrated process that involves over two hundred protein factors. After early assembly events on nascent rRNA in the nucleolus, pre-60S particles undergo continuous maturation steps in the nucleoplasm, and prepare for nuclear export. Here, we report eleven cryo-EM structures of the nuclear pre-60S particles isolated from human cells through epitope-tagged GNL2, at resolutions of 2.8-4.3 Å. These high-resolution snapshots provide fine details for several major structural remodeling events at a virtual temporal resolution. Two new human nuclear factors, L10K and C11orf98, were also identified. Comparative structural analyses reveal that many assembly factors act as successive place holders to control the timing of factor association/dissociation events. They display multi-phasic binding properties for different domains and generate complex binding inter-dependencies as a means to guide the rRNA maturation process towards its mature conformation. Overall, our data reveal that nuclear assembly of human pre-60S particles is generally hierarchical with short branch pathways, and a few factors display specific roles as rRNA chaperones by confining rRNA helices locally to facilitate their folding, such as the C-terminal domain of SDAD1. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 3.3 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 289.2 KB | Display | |
Data in CIF | ![]() | 471.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 35672MC ![]() 8idtC ![]() 8idyC ![]() 8ie3C ![]() 8ineC ![]() 8infC ![]() 8inkC ![]() 8ipdC ![]() 8ipxC ![]() 8ipyC ![]() 8ir3C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
+60S ribosomal protein ... , 37 types, 37 molecules yBDEFGHIKLMPQSUVXZabcehilmnopA...
-Protein , 11 types, 11 molecules 467zNuvwrT9
#2: Protein | Mass: 74107.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#3: Protein | Mass: 26620.010 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#4: Protein | Mass: 19666.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#33: Protein | Mass: 15268.361 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#37: Protein | Mass: 53387.141 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#39: Protein | Mass: 62098.242 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#40: Protein | Mass: 27602.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#41: Protein | Mass: 83796.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#42: Protein | Mass: 40312.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#52: Protein | Mass: 35658.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#53: Protein | Mass: 96726.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q8IY81, Transferases; Transferring one-carbon groups; Methyltransferases |
-Ribosome biogenesis ... , 2 types, 2 molecules JR
#36: Protein | Mass: 30136.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#38: Protein | Mass: 41278.523 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-RNA chain , 3 types, 3 molecules 28W
#43: RNA chain | Mass: 1636356.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#44: RNA chain | Mass: 50157.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#51: RNA chain | Mass: 38691.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 2 types, 2 molecules 


#54: Chemical | ChemComp-GTP / |
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#55: Chemical | ChemComp-MG / |
-Details
Has ligand of interest | N |
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-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: cryo-EM structure of human nuclear pre-60S ribosomal particle - State A Type: RIBOSOME / Entity ID: #1-#45, #53, #46-#52 / Source: NATURAL |
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Source (natural) | Organism: ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: DIFFRACTION / Nominal defocus max: 1800 nm / Nominal defocus min: 1200 nm |
Image recording | Electron dose: 1.8 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
EM software | Name: PHENIX / Version: 1.19.2_4158: / Category: model refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 30311 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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