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Yorodumi- PDB-7b5m: Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 s... -
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Basic information
| Entry | Database: PDB / ID: 7b5m | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 super-assembly: CUL1-RBX1-SKP1-SKP2-CKSHS1-p27~Ub~ARIH1. Transition State 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Keywords | LIGASE / ubiquitin / ubiquitin ligase / E3 ligase / F-box protein / RBR ligase / Cullin-RING-Ligase / CRL / SCF / NEDD8 / Post-translational modification / ubiquitylation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationPKR/eIFalpha signaling / cyclin-dependent protein kinase regulator activity / negative regulation of cardiac muscle tissue regeneration / ubiquitin-like protein transferase activity / autophagic cell death / FOXO-mediated transcription of cell cycle genes / regulation of xenophagy / RBR-type E3 ubiquitin transferase / Parkin-FBXW7-Cul1 ubiquitin ligase complex / F-box domain binding ...PKR/eIFalpha signaling / cyclin-dependent protein kinase regulator activity / negative regulation of cardiac muscle tissue regeneration / ubiquitin-like protein transferase activity / autophagic cell death / FOXO-mediated transcription of cell cycle genes / regulation of xenophagy / RBR-type E3 ubiquitin transferase / Parkin-FBXW7-Cul1 ubiquitin ligase complex / F-box domain binding / synaptic assembly at neuromuscular junction / regulation of cell cycle G1/S phase transition / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of cell cycle process / neural crest cell differentiation / cellular response to lithium ion / negative regulation of mitotic cell cycle / regulation of BMP signaling pathway / PcG protein complex / negative regulation of beige fat cell differentiation / cyclin-dependent protein serine/threonine kinase inhibitor activity / regulation of mitophagy / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / regulation of centrosome duplication / cullin-RING ubiquitin ligase complex / maintenance of protein location in nucleus / Cul7-RING ubiquitin ligase complex / regulation of cyclin-dependent protein serine/threonine kinase activity / nuclear export / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / RHO GTPases activate CIT / cellular response to chemical stress / cyclin-dependent protein serine/threonine kinase activator activity / regulation of TOR signaling / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / Modulation of host responses by IFN-stimulated genes / protein neddylation / AKT phosphorylates targets in the cytosol / ubiquitin ligase activator activity / ubiquitin conjugating enzyme binding / regulation of DNA damage checkpoint / NEDD8 ligase activity / negative regulation of response to oxidative stress / molecular function inhibitor activity / protein K27-linked ubiquitination / VCB complex / Cul5-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul3-RING ubiquitin ligase complex / p53-Dependent G1 DNA Damage Response / negative regulation of type I interferon production / PTK6 Regulates Cell Cycle / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Constitutive Signaling by AKT1 E17K in Cancer / negative regulation of mitophagy / Prolactin receptor signaling / RSV-host interactions / limb development / Lewy body / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Defective binding of RB1 mutants to E2F1,(E2F2, E2F3) / Cul4B-RING E3 ubiquitin ligase complex / protein kinase inhibitor activity / ubiquitin ligase complex scaffold activity / negative regulation of vascular associated smooth muscle cell proliferation / centrosome duplication / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / cilium assembly / protein monoubiquitination / cullin family protein binding / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / ubiquitin ligase complex / Cajal body / protein K63-linked ubiquitination / Cyclin E associated events during G1/S transition / cyclin-dependent protein kinase holoenzyme complex / Cyclin A:Cdk2-associated events at S phase entry / positive regulation of double-strand break repair via homologous recombination / GSK3B-mediated proteasomal degradation of PD-L1(CD274) / ubiquitin-like ligase-substrate adaptor activity / regulation of G1/S transition of mitotic cell cycle / signal transduction in response to DNA damage / site of DNA damage / Nuclear events stimulated by ALK signaling in cancer / protein K48-linked ubiquitination / negative regulation of insulin receptor signaling pathway / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / FLT3 Signaling / animal organ morphogenesis / Maturation of protein E / Maturation of protein E / transcription-coupled nucleotide-excision repair / intrinsic apoptotic signaling pathway Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.91 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Horn-Ghetko, D. / Prabu, J.R. / Schulman, B.A. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | Germany, 2items
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Citation | Journal: Nature / Year: 2021Title: Ubiquitin ligation to F-box protein targets by SCF-RBR E3-E3 super-assembly. Authors: Daniel Horn-Ghetko / David T Krist / J Rajan Prabu / Kheewoong Baek / Monique P C Mulder / Maren Klügel / Daniel C Scott / Huib Ovaa / Gary Kleiger / Brenda A Schulman / ![]() Abstract: E3 ligases are typically classified by hallmark domains such as RING and RBR, which are thought to specify unique catalytic mechanisms of ubiquitin transfer to recruited substrates. However, rather ...E3 ligases are typically classified by hallmark domains such as RING and RBR, which are thought to specify unique catalytic mechanisms of ubiquitin transfer to recruited substrates. However, rather than functioning individually, many neddylated cullin-RING E3 ligases (CRLs) and RBR-type E3 ligases in the ARIH family-which together account for nearly half of all ubiquitin ligases in humans-form E3-E3 super-assemblies. Here, by studying CRLs in the SKP1-CUL1-F-box (SCF) family, we show how neddylated SCF ligases and ARIH1 (an RBR-type E3 ligase) co-evolved to ubiquitylate diverse substrates presented on various F-box proteins. We developed activity-based chemical probes that enabled cryo-electron microscopy visualization of steps in E3-E3 ubiquitylation, initiating with ubiquitin linked to the E2 enzyme UBE2L3, then transferred to the catalytic cysteine of ARIH1, and culminating in ubiquitin linkage to a substrate bound to the SCF E3 ligase. The E3-E3 mechanism places the ubiquitin-linked active site of ARIH1 adjacent to substrates bound to F-box proteins (for example, substrates with folded structures or limited length) that are incompatible with previously described conventional RING E3-only mechanisms. The versatile E3-E3 super-assembly may therefore underlie widespread ubiquitylation. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7b5m.cif.gz | 308.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7b5m.ent.gz | 234.8 KB | Display | PDB format |
| PDBx/mmJSON format | 7b5m.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/b5/7b5m ftp://data.pdbj.org/pub/pdb/validation_reports/b5/7b5m | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 12040MC ![]() 7b5lC ![]() 7b5nC ![]() 7b5rC ![]() 7b5sC C: citing same article ( M: map data used to model this data |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules CU
| #1: Protein | Mass: 89800.367 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CUL1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q13616 |
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| #6: Protein | Mass: 8519.778 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: UBC / Production host: ![]() |
-E3 ubiquitin-protein ligase ... , 2 types, 2 molecules HR
| #2: Protein | Mass: 64005.605 Da / Num. of mol.: 1 / Mutation: F430A, E431A, E503A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ARIH1, ARI, MOP6, UBCH7BP, HUSSY-27 / Production host: ![]() References: UniProt: Q9Y4X5, RBR-type E3 ubiquitin transferase |
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| #7: Protein | Mass: 12289.977 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RBX1, RNF75, ROC1 / Production host: Trichoplusia ni (cabbage looper)References: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase |
-S-phase kinase-associated protein ... , 2 types, 2 molecules TS
| #3: Protein | Mass: 47817.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SKP2, FBXL1 / Production host: ![]() |
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| #5: Protein | Mass: 18679.965 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SKP1, EMC19, OCP2, SKP1A, TCEB1L / Production host: ![]() |
-Cyclin-dependent ... , 2 types, 2 molecules KP
| #4: Protein | Mass: 9679.211 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CKS1B, CKS1, PNAS-143, PNAS-16 / Production host: ![]() |
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| #8: Protein | Mass: 22185.262 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CDKN1B, KIP1 / Production host: synthetic construct (others) / References: UniProt: P46527 |
-Non-polymers , 1 types, 5 molecules 
| #9: Chemical | ChemComp-ZN / |
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-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-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
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| Molecular weight | Value: 0.25 MDa | ||||||||||||||||||||||||||||||
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| Buffer solution | pH: 7.8 | ||||||||||||||||||||||||||||||
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 70 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.91 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 759489 / Symmetry type: POINT | ||||||||||||||||||||||||
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About Yorodumi



Homo sapiens (human)
Germany, 2items
Citation

UCSF Chimera



















PDBj





























Trichoplusia ni (cabbage looper)

