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- PDB-7jl3: Cryo-EM structure of RIG-I:dsRNA filament in complex with RIPLET ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7jl3 | ||||||
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Title | Cryo-EM structure of RIG-I:dsRNA filament in complex with RIPLET PrySpry domain (trimer) | ||||||
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![]() | HYDROLASE/TRANSFERASE/RNA / ![]() ![]() ![]() | ||||||
Function / homology | ![]() RIG-I binding / free ubiquitin chain polymerization / regulation of type III interferon production / RIG-I signaling pathway / positive regulation of myeloid dendritic cell cytokine production / OAS antiviral response / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / positive regulation of response to cytokine stimulus / positive regulation of granulocyte macrophage colony-stimulating factor production ...RIG-I binding / free ubiquitin chain polymerization / regulation of type III interferon production / RIG-I signaling pathway / positive regulation of myeloid dendritic cell cytokine production / OAS antiviral response / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / positive regulation of response to cytokine stimulus / positive regulation of granulocyte macrophage colony-stimulating factor production / RSV-host interactions / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Kato, K. / Ahmad, S. / Hur, S. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural analysis of RIG-I-like receptors reveals ancient rules of engagement between diverse RNA helicases and TRIM ubiquitin ligases. Authors: Kazuki Kato / Sadeem Ahmad / Zixiang Zhu / Janet M Young / Xin Mu / Sehoon Park / Harmit S Malik / Sun Hur / ![]() ![]() Abstract: RNA helicases and E3 ubiquitin ligases mediate many critical functions in cells, but their actions have largely been studied in distinct biological contexts. Here, we uncover evolutionarily conserved ...RNA helicases and E3 ubiquitin ligases mediate many critical functions in cells, but their actions have largely been studied in distinct biological contexts. Here, we uncover evolutionarily conserved rules of engagement between RNA helicases and tripartite motif (TRIM) E3 ligases that lead to their functional coordination in vertebrate innate immunity. Using cryoelectron microscopy and biochemistry, we show that RIG-I-like receptors (RLRs), viral RNA receptors with helicase domains, interact with their cognate TRIM/TRIM-like E3 ligases through similar epitopes in the helicase domains. Their interactions are avidity driven, restricting the actions of TRIM/TRIM-like proteins and consequent immune activation to RLR multimers. Mass spectrometry and phylogeny-guided biochemical analyses further reveal that similar rules of engagement may apply to diverse RNA helicases and TRIM/TRIM-like proteins. Our analyses suggest not only conserved substrates for TRIM proteins but also, unexpectedly, deep evolutionary connections between TRIM proteins and RNA helicases, linking ubiquitin and RNA biology throughout animal evolution. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 585.9 KB | Display | ![]() |
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PDB format | ![]() | 443.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 22371MC ![]() 7jl0C ![]() 7jl1C ![]() 7jl2C ![]() 7jl4C 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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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
NCS ensembles :
NCS oper:
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Components
-Protein , 2 types, 6 molecules ACEBDF
#1: Protein | Mass: 82724.070 Da / Num. of mol.: 3 / Fragment: UNP residues 159-880 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() ![]() #2: Protein | Mass: 21021.904 Da / Num. of mol.: 3 / Fragment: RIPLET PrySpry domain (UNP residues 249-432) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() References: UniProt: Q8IUD6, RING-type E3 ubiquitin transferase |
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-RNA chain , 2 types, 2 molecules XY
#3: RNA chain | Mass: 13550.107 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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#4: RNA chain | Mass: 13360.916 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
-Non-polymers , 4 types, 12 molecules ![](data/chem/img/ADP.gif)
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#5: Chemical | ![]() #6: Chemical | #7: Chemical | #8: Chemical | |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: helical reconstruction |
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Sample preparation
Component | Name: Ternary complex of dsRNA-bound RIG-I filament with RIPLET PrySpry domain Type: COMPLEX / Entity ID: #1-#4 / 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![]() ![]() |
Specimen support | Details: unspecified |
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: TFS KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() |
Image recording | Electron dose: 19.424 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
Helical symmerty | Angular rotation/subunit: 76.1005 ° / Axial rise/subunit: 46.2706 Å / Axial symmetry: C1 | ||||||||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 39718 / Symmetry type: HELICAL | ||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 98.75 Å2 | ||||||||||||||||||||||||||||||
Refine LS restraints |
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Refine LS restraints NCS |
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