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- PDB-9g08: Structure of human RNF213 bound to the secreted effector IpaH1.4 ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9g08 | |||||||||||||||
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Title | Structure of human RNF213 bound to the secreted effector IpaH1.4 from Shigella flexneri | |||||||||||||||
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![]() | ANTIMICROBIAL PROTEIN / RNF213 / IpaH1.4 / IpaH / E3 ligase / RING / LRR / NEL / secreted effector / Shigella / inhibitor / complex / AAA ATPase | |||||||||||||||
Function / homology | ![]() lipid ubiquitination / negative regulation of non-canonical Wnt signaling pathway / lipid droplet formation / xenophagy / Suppression of apoptosis / Transferases; Acyltransferases; Aminoacyltransferases / sprouting angiogenesis / regulation of lipid metabolic process / protein K63-linked ubiquitination / immune system process ...lipid ubiquitination / negative regulation of non-canonical Wnt signaling pathway / lipid droplet formation / xenophagy / Suppression of apoptosis / Transferases; Acyltransferases; Aminoacyltransferases / sprouting angiogenesis / regulation of lipid metabolic process / protein K63-linked ubiquitination / immune system process / protein autoubiquitination / lipid droplet / RING-type E3 ubiquitin transferase / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / Signaling by ALK fusions and activated point mutants / Antigen processing: Ubiquitination & Proteasome degradation / toxin activity / ubiquitin-dependent protein catabolic process / angiogenesis / symbiont-mediated suppression of host NF-kappaB cascade / host cell cytoplasm / protein ubiquitination / defense response to bacterium / nucleolus / ATP hydrolysis activity / extracellular region / zinc ion binding / ATP binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||||||||
![]() | Naydenova, K. / Randow, F. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Shigella flexneri evades LPS ubiquitylation through IpaH1.4-mediated degradation of RNF213. Authors: Katerina Naydenova / Keith B Boyle / Claudio Pathe / Prathyush Pothukuchi / Ana Crespillo-Casado / Felix Scharte / Pierre-Mehdi Hammoudi / Elsje G Otten / Neal M Alto / Felix Randow / ![]() ![]() ![]() Abstract: Pathogens have evolved diverse strategies to counteract host immunity. Ubiquitylation of lipopolysaccharide (LPS) on cytosol-invading bacteria by the E3 ligase RNF213 creates 'eat me' signals for ...Pathogens have evolved diverse strategies to counteract host immunity. Ubiquitylation of lipopolysaccharide (LPS) on cytosol-invading bacteria by the E3 ligase RNF213 creates 'eat me' signals for antibacterial autophagy, but whether and how cytosol-adapted bacteria avoid LPS ubiquitylation remains poorly understood. Here, we show that the enterobacterium Shigella flexneri actively antagonizes LPS ubiquitylation through IpaH1.4, a secreted effector protein with ubiquitin E3 ligase activity. IpaH1.4 binds to RNF213, ubiquitylates it and targets it for proteasomal degradation, thus counteracting host-protective LPS ubiquitylation. To understand how IpaH1.4 recognizes RNF213, we determined the cryogenic electron microscopy structure of the IpaH1.4-RNF213 complex. The specificity of the interaction is achieved through the leucine-rich repeat of IpaH1.4, which binds the RING domain of RNF213 by hijacking the conserved RING interface required for binding to ubiquitin-charged E2 enzymes. IpaH1.4 also targets other E3 ligases involved in inflammation and immunity through binding to the E2-interacting face of their RING domains, including the E3 ligase LUBAC that is required for the synthesis of M1-linked ubiquitin chains on cytosol-invading bacteria downstream of RNF213. We conclude that IpaH1.4 has evolved to antagonize multiple antibacterial and proinflammatory host E3 ligases. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.6 MB | Display | ![]() |
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PDB format | ![]() | 1.3 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 50913MC ![]() 9g09C 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
#1: Protein | Mass: 596450.250 Da / Num. of mol.: 1 / Mutation: D1045N Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: Q63HN8, RING-type E3 ubiquitin transferase, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement, Transferases; ...References: UniProt: Q63HN8, RING-type E3 ubiquitin transferase, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement, Transferases; Acyltransferases; Aminoacyltransferases | ||||
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#2: Protein | Mass: 64925.098 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: ipaH1.4, SF_p0265 / Production host: ![]() ![]() References: UniProt: A0A0H2USG1, RING-type E3 ubiquitin transferase | ||||
#3: Chemical | ChemComp-ATP / | ||||
#4: Chemical | ChemComp-MG / | ||||
#5: Chemical | Has ligand of interest | N | Has protein modification | N | |
-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: E3 ligase RNF213, bound to the secreted effector IpaH1.4 from Shigella flexneri Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil 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: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm / Calibrated defocus min: 700 nm / Calibrated defocus max: 3500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 4.56 sec. / Electron dose: 32 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 16931 |
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Processing
EM software | Name: EPU / Category: image acquisition | ||||||||||||||||||||||||
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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: 334921 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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