+Open data
-Basic information
Entry | Database: PDB / ID: 8qfd | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | UFL1 E3 ligase bound 60S ribosome | |||||||||||||||
Components |
| |||||||||||||||
Keywords | LIGASE / UFM1 / Ribosome / Complex | |||||||||||||||
Function / homology | Function and homology information UFM1 ligase activity / UFM1 transferase activity / protein ufmylation / protein K69-linked ufmylation / negative regulation of IRE1-mediated unfolded protein response / regulation of proteasomal ubiquitin-dependent protein catabolic process / eukaryotic 80S initiation complex / embryonic brain development / negative regulation of protein neddylation / translation at presynapse ...UFM1 ligase activity / UFM1 transferase activity / protein ufmylation / protein K69-linked ufmylation / negative regulation of IRE1-mediated unfolded protein response / regulation of proteasomal ubiquitin-dependent protein catabolic process / eukaryotic 80S initiation complex / embryonic brain development / negative regulation of protein neddylation / translation at presynapse / regulation of intracellular estrogen receptor signaling pathway / axial mesoderm development / regulation of G1 to G0 transition / negative regulation of formation of translation preinitiation complex / ribosomal protein import into nucleus / 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 / exit from mitosis / protein-DNA complex disassembly / 90S preribosome assembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / TORC2 complex binding / Transferases; Acyltransferases; Aminoacyltransferases / GAIT complex / G1 to G0 transition / reticulophagy / retinal ganglion cell axon guidance / middle ear morphogenesis / cytoplasmic side of rough endoplasmic reticulum membrane / regulation of canonical NF-kappaB signal transduction / A band / positive regulation of signal transduction by p53 class mediator / alpha-beta T cell differentiation / ubiquitin ligase inhibitor activity / negative regulation of ubiquitin protein ligase activity / response to L-glutamate / response to aldosterone / homeostatic process / macrophage chemotaxis / lung morphogenesis / negative regulation of NF-kappaB transcription factor activity / Protein hydroxylation / Peptide chain elongation / Selenocysteine synthesis / protein-RNA complex assembly / Formation of a pool of free 40S subunits / Eukaryotic Translation Termination / blastocyst development / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / translation regulator activity / Viral mRNA Translation / protein localization to nucleus / cellular response to actinomycin D / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / protein targeting / hematopoietic stem cell differentiation / rough endoplasmic reticulum / Major pathway of rRNA processing in the nucleolus and cytosol / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / positive regulation of autophagy / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of glial cell proliferation / Maturation of protein E / Maturation of protein E / negative regulation of ubiquitin-dependent protein catabolic process / ER Quality Control Compartment (ERQC) / ribosomal large subunit biogenesis / maturation of LSU-rRNA / negative regulation of protein ubiquitination / embryo implantation / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of FZD by ubiquitination / TICAM1,TRAF6-dependent induction of TAK1 complex / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / p75NTR recruits signalling complexes / Downregulation of ERBB4 signaling / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy Similarity search - Function | |||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.2 Å | |||||||||||||||
Authors | Makhlouf, L. / Kulathu, Y. / Zeqiraj, E. | |||||||||||||||
Funding support | United Kingdom, European Union, 4items
| |||||||||||||||
Citation | Journal: Nature / Year: 2024 Title: The UFM1 E3 ligase recognizes and releases 60S ribosomes from ER translocons. Authors: Linda Makhlouf / Joshua J Peter / Helge M Magnussen / Rohan Thakur / David Millrine / Thomas C Minshull / Grace Harrison / Joby Varghese / Frederic Lamoliatte / Martina Foglizzo / Thomas ...Authors: Linda Makhlouf / Joshua J Peter / Helge M Magnussen / Rohan Thakur / David Millrine / Thomas C Minshull / Grace Harrison / Joby Varghese / Frederic Lamoliatte / Martina Foglizzo / Thomas Macartney / Antonio N Calabrese / Elton Zeqiraj / Yogesh Kulathu / Abstract: Stalled ribosomes at the endoplasmic reticulum (ER) are covalently modified with the ubiquitin-like protein UFM1 on the 60S ribosomal subunit protein RPL26 (also known as uL24). This modification, ...Stalled ribosomes at the endoplasmic reticulum (ER) are covalently modified with the ubiquitin-like protein UFM1 on the 60S ribosomal subunit protein RPL26 (also known as uL24). This modification, which is known as UFMylation, is orchestrated by the UFM1 ribosome E3 ligase (UREL) complex, comprising UFL1, UFBP1 and CDK5RAP3 (ref. ). However, the catalytic mechanism of UREL and the functional consequences of UFMylation are unclear. Here we present cryo-electron microscopy structures of UREL bound to 60S ribosomes, revealing the basis of its substrate specificity. UREL wraps around the 60S subunit to form a C-shaped clamp architecture that blocks the tRNA-binding sites at one end, and the peptide exit tunnel at the other. A UFL1 loop inserts into and remodels the peptidyl transferase centre. These features of UREL suggest a crucial function for UFMylation in the release and recycling of stalled or terminated ribosomes from the ER membrane. In the absence of functional UREL, 60S-SEC61 translocon complexes accumulate at the ER membrane, demonstrating that UFMylation is necessary for releasing SEC61 from 60S subunits. Notably, this release is facilitated by a functional switch of UREL from a 'writer' to a 'reader' module that recognizes its product-UFMylated 60S ribosomes. Collectively, we identify a fundamental role for UREL in dissociating 60S subunits from the SEC61 translocon and the basis for UFMylation in regulating protein homeostasis at the ER. | |||||||||||||||
History |
|
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
---|
-Downloads & links
-Download
PDBx/mmCIF format | 8qfd.cif.gz | 3.1 MB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb8qfd.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 8qfd.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qf/8qfd ftp://data.pdbj.org/pub/pdb/validation_reports/qf/8qfd | HTTPS FTP |
---|
-Related structure data
Related structure data | 18382MC 8bzrC 8c0dC 8qfcC M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-RNA chain , 3 types, 3 molecules 578
#1: RNA chain | Mass: 1640230.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: GenBank: 86475748 |
---|---|
#2: RNA chain | Mass: 38385.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: GenBank: XR_007069046.1 |
#3: RNA chain | Mass: 50449.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: GenBank: 555853 |
+60S ribosomal protein ... , 38 types, 38 molecules ABCDEGHIJLMNOPQRSTUVWXYZabcdef...
-Protein , 4 types, 4 molecules Fjms
#9: Protein | Mass: 29290.973 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P18124 |
---|---|
#38: Protein | Mass: 11111.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: A0A5J5MXE5 |
#41: Protein | Mass: 14758.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62987 |
#45: Protein | Mass: 91591.234 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: UFL1, KIAA0776, MAXER, NLBP, RCAD / Production host: Escherichia coli (E. coli) References: UniProt: O94874, Transferases; Acyltransferases; Aminoacyltransferases |
-Non-polymers , 3 types, 2330 molecules
#46: Chemical | ChemComp-MG / #47: Chemical | ChemComp-ZN / #48: Water | ChemComp-HOH / | |
---|
-Details
Has ligand of interest | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component |
| ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Source (natural) |
| ||||||||||||||||||
Source (recombinant) | Organism: Escherichia coli (E. coli) | ||||||||||||||||||
Buffer solution | pH: 7.5 Details: 25 mM HEPES pH 7.5, 50 mM KCl, 5 mM MgCl2, 2 mM DTT | ||||||||||||||||||
Specimen | Conc.: 7.7 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 165000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 200 nm |
Image recording | Average exposure time: 2.67 sec. / Electron dose: 33.4 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 59394 |
EM imaging optics | Energyfilter name: TFS Selectris X / Energyfilter slit width: 10 eV |
-Processing
EM software |
| ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||
3D reconstruction | Resolution: 2.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 299008 / Symmetry type: POINT |