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- PDB-6r7i: Structural basis of Cullin-2 RING E3 ligase regulation by the COP... -
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Basic information
Entry | Database: PDB / ID: 6r7i | ||||||
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Title | Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome | ||||||
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![]() | LIGASE / Cullin-Ring E3 Ligases (CRLs) COP9 signalosome (CSN) Deneddylation | ||||||
Function / homology | ![]() nucleotide-excision repair factor 4 complex / : / COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / regulation of IRE1-mediated unfolded protein response / global genome nucleotide-excision repair / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity ...nucleotide-excision repair factor 4 complex / : / COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / regulation of IRE1-mediated unfolded protein response / global genome nucleotide-excision repair / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity / protein deneddylation / regulation of protein neddylation / eukaryotic translation initiation factor 3 complex / activation of NF-kappaB-inducing kinase activity / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / COP9 signalosome / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Cul7-RING ubiquitin ligase complex / target-directed miRNA degradation / VCB complex / elongin complex / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / regulation of JNK cascade / protein neddylation / metal-dependent deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases) / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / RHOBTB1 GTPase cycle / ubiquitin-ubiquitin ligase activity / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / inner cell mass cell proliferation / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / TP53 Regulates Transcription of DNA Repair Genes / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / Prolactin receptor signaling / skeletal muscle cell differentiation / TGF-beta receptor signaling activates SMADs / Antigen processing: Ubiquitination & Proteasome degradation / cullin family protein binding / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / regulation of proteolysis / regulation of postsynapse assembly / anatomical structure morphogenesis / protein monoubiquitination / response to light stimulus / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / protein K48-linked ubiquitination / Formation of HIV elongation complex in the absence of HIV Tat / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / response to UV / Formation of RNA Pol II elongation complex / JNK cascade / RNA Polymerase II Pre-transcription Events / translation initiation factor activity / positive regulation of TORC1 signaling / regulation of cellular response to insulin stimulus / intrinsic apoptotic signaling pathway / post-translational protein modification / Regulation of BACH1 activity / T cell activation / transcription corepressor binding / TP53 Regulates Transcription of DNA Repair Genes / nucleotide-excision repair / transcription initiation at RNA polymerase II promoter / positive regulation of DNA-binding transcription factor activity / Degradation of DVL / cellular response to amino acid stimulus / transcription elongation by RNA polymerase II / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / Iron uptake and transport / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / negative regulation of canonical Wnt signaling pathway / DNA Damage Recognition in GG-NER / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / protein modification process / Inactivation of CSF3 (G-CSF) signaling / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.9 Å | ||||||
![]() | Faull, S.F. / Lau, A.M.C. / Beuron, F. / Cronin, N.B. / Morris, E.P. / Politis, A. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of Cullin 2 RING E3 ligase regulation by the COP9 signalosome. Authors: Sarah V Faull / Andy M C Lau / Chloe Martens / Zainab Ahdash / Kjetil Hansen / Hugo Yebenes / Carla Schmidt / Fabienne Beuron / Nora B Cronin / Edward P Morris / Argyris Politis / ![]() ![]() ![]() Abstract: Cullin-Ring E3 Ligases (CRLs) regulate a multitude of cellular pathways through specific substrate receptors. The COP9 signalosome (CSN) deactivates CRLs by removing NEDD8 from activated Cullins. ...Cullin-Ring E3 Ligases (CRLs) regulate a multitude of cellular pathways through specific substrate receptors. The COP9 signalosome (CSN) deactivates CRLs by removing NEDD8 from activated Cullins. Here we present structures of the neddylated and deneddylated CSN-CRL2 complexes by combining single-particle cryo-electron microscopy (cryo-EM) with chemical cross-linking mass spectrometry (XL-MS). These structures suggest a conserved mechanism of CSN activation, consisting of conformational clamping of the CRL2 substrate by CSN2/CSN4, release of the catalytic CSN5/CSN6 heterodimer and finally activation of the CSN5 deneddylation machinery. Using hydrogen-deuterium exchange (HDX)-MS we show that CRL2 activates CSN5/CSN6 in a neddylation-independent manner. The presence of NEDD8 is required to activate the CSN5 active site. Overall, by synergising cryo-EM with MS, we identify sensory regions of the CSN that mediate its stepwise activation and provide a framework for understanding the regulatory mechanism of other Cullin family members. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 1006.8 KB | Display | ![]() |
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PDB format | ![]() | 801.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 890.6 KB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 216.1 KB | Display | |
Data in CIF | ![]() | 301.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4742MC ![]() 4736C ![]() 4739C ![]() 4741C ![]() 4744C ![]() 6r6hC ![]() 6r7fC ![]() 6r7hC ![]() 6r7nC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-COP9 signalosome complex subunit ... , 8 types, 8 molecules ABCDEFGH
#1: Protein | Mass: 52494.109 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 51664.570 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein | Mass: 45606.543 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#4: Protein | Mass: 46479.879 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#5: Protein | Mass: 37621.742 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: Q92905, Hydrolases; Acting on peptide bonds (peptidases) |
#6: Protein | Mass: 36203.398 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#7: Protein | Mass: 23944.400 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#8: Protein | Mass: 23245.543 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Protein , 5 types, 5 molecules NOPQR
#9: Protein | Mass: 8876.831 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#10: Protein | Mass: 87098.930 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#11: Protein | Mass: 11973.649 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#12: Protein | Mass: 11338.760 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#13: Protein | Mass: 10021.553 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Non-polymers , 2 types, 173 molecules 


#14: Chemical | ChemComp-ZN / #15: Water | ChemComp-HOH / | |
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-Details
Has protein modification | Y |
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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: CSN-CRL2-N8 / Type: COMPLEX / Entity ID: #1-#13 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
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: BRIGHT FIELD / Calibrated defocus min: 1800 nm / Calibrated defocus max: 3000 nm / Cs: 2.7 mm / C2 aperture diameter: 75 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 40 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 2 |
EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 5.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 316921 / Symmetry type: POINT |