+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-27744 | |||||||||
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Title | Cryo-EM structure of RIG-I bound to the end of OHSLR30 (+ATP) | |||||||||
Map data | Cryo-EM structure of protein-RNA complex 8 | |||||||||
Sample |
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Keywords | ribonucleoprotein complex / RNA sensor / RIG-I like receptor / Hydrolase-RNA complex | |||||||||
Function / homology | Function and homology information 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 / pattern recognition receptor activity / TRAF6 mediated IRF7 activation ...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 / pattern recognition receptor activity / TRAF6 mediated IRF7 activation / cytoplasmic pattern recognition receptor signaling pathway / cellular response to exogenous dsRNA / RSV-host interactions / response to exogenous dsRNA / positive regulation of interferon-alpha production / TRAF6 mediated NF-kB activation / bicellular tight junction / positive regulation of defense response to virus by host / antiviral innate immune response / positive regulation of interferon-beta production / regulation of cell migration / positive regulation of interleukin-8 production / Negative regulators of DDX58/IFIH1 signaling / response to virus / DDX58/IFIH1-mediated induction of interferon-alpha/beta / Evasion by RSV of host interferon responses / ISG15 antiviral mechanism / ruffle membrane / positive regulation of interleukin-6 production / SARS-CoV-1 activates/modulates innate immune responses / positive regulation of tumor necrosis factor production / double-stranded RNA binding / Ovarian tumor domain proteases / actin cytoskeleton / TRAF3-dependent IRF activation pathway / gene expression / double-stranded DNA binding / defense response to virus / RNA helicase activity / single-stranded RNA binding / Ub-specific processing proteases / RNA helicase / ribonucleoprotein complex / innate immune response / ubiquitin protein ligase binding / positive regulation of gene expression / GTP binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / zinc ion binding / ATP binding / identical protein binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Wang W / Pyle AM | |||||||||
Funding support | United States, 2 items
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Citation | Journal: Mol Cell / Year: 2022 Title: The RIG-I receptor adopts two different conformations for distinguishing host from viral RNA ligands. Authors: Wenshuai Wang / Anna Marie Pyle / Abstract: RIG-I is an essential innate immune receptor for detecting and responding to infection by RNA viruses. RIG-I specifically recognizes the unique molecular features of viral RNA molecules and ...RIG-I is an essential innate immune receptor for detecting and responding to infection by RNA viruses. RIG-I specifically recognizes the unique molecular features of viral RNA molecules and selectively distinguishes them from closely related RNAs abundant in host cells. The physical basis for this exquisite selectivity is revealed through a series of high-resolution cryo-EM structures of RIG-I in complex with host and viral RNA ligands. These studies demonstrate that RIG-I actively samples double-stranded RNAs in the cytoplasm and distinguishes them by adopting two different types of protein folds. Upon binding viral RNA, RIG-I adopts a high-affinity conformation that is conducive to signaling, while host RNA induces an autoinhibited conformation that stimulates RNA release. By coupling protein folding with RNA binding selectivity, RIG-I distinguishes RNA molecules that differ by as little as one phosphate group, thereby explaining the molecular basis for selective antiviral sensing and the induction of autoimmunity upon RIG-I dysregulation. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_27744.map.gz | 19.5 MB | EMDB map data format | |
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Header (meta data) | emd-27744-v30.xml emd-27744.xml | 16.5 KB 16.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_27744_fsc.xml | 6.3 KB | Display | FSC data file |
Images | emd_27744.png | 62.8 KB | ||
Masks | emd_27744_msk_1.map | 20.8 MB | Mask map | |
Filedesc metadata | emd-27744.cif.gz | 6.3 KB | ||
Others | emd_27744_half_map_1.map.gz emd_27744_half_map_2.map.gz | 15.9 MB 15.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-27744 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27744 | HTTPS FTP |
-Validation report
Summary document | emd_27744_validation.pdf.gz | 770.6 KB | Display | EMDB validaton report |
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Full document | emd_27744_full_validation.pdf.gz | 770.2 KB | Display | |
Data in XML | emd_27744_validation.xml.gz | 11.8 KB | Display | |
Data in CIF | emd_27744_validation.cif.gz | 16 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27744 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27744 | HTTPS FTP |
-Related structure data
Related structure data | 8dvsMC 7tnxC 7tnyC 7tnzC 7to0C 7to1C 7to2C 8dvrC 8dvuC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_27744.map.gz / Format: CCP4 / Size: 20.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Cryo-EM structure of protein-RNA complex 8 | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.149 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_27744_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Half Map 1
File | emd_27744_half_map_1.map | ||||||||||||
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Annotation | Half Map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half Map 2
File | emd_27744_half_map_2.map | ||||||||||||
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Annotation | Half Map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Complex of RIG-I with OHSLR30
Entire | Name: Complex of RIG-I with OHSLR30 |
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Components |
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-Supramolecule #1: Complex of RIG-I with OHSLR30
Supramolecule | Name: Complex of RIG-I with OHSLR30 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Antiviral innate immune response receptor RIG-I
Macromolecule | Name: Antiviral innate immune response receptor RIG-I / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 106.740555 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MTTEQRRSLQ AFQDYIRKTL DPTYILSYMA PWFREEEVQY IQAEKNNKGP MEAATLFLKF LLELQEEGWF RGFLDALDHA GYSGLYEAI ESWDFKKIEK LEEYRLLLKR LQPEFKTRII PTDIISDLSE CLINQECEEI LQICSTKGMM AGAEKLVECL L RSDKENWP ...String: MTTEQRRSLQ AFQDYIRKTL DPTYILSYMA PWFREEEVQY IQAEKNNKGP MEAATLFLKF LLELQEEGWF RGFLDALDHA GYSGLYEAI ESWDFKKIEK LEEYRLLLKR LQPEFKTRII PTDIISDLSE CLINQECEEI LQICSTKGMM AGAEKLVECL L RSDKENWP KTLKLALEKE RNKFSELWIV EKGIKDVETE DLEDKMETSD IQIFYQEDPE CQNLSENSCP PSEVSDTNLY SP FKPRNYQ LELALPAMKG KNTIICAPTG CGKTFVSLLI CEHHLKKFPQ GQKGKVVFFA NQIPVYEQQK SVFSKYFERH GYR VTGISG ATAENVPVEQ IVENNDIIIL TPQILVNNLK KGTIPSLSIF TLMIFDECHN TSKQHPYNMI MFNYLDQKLG GSSG PLPQV IGLTASVGVG DAKNTDEALD YICKLCASLD ASVIATVKHN LEELEQVVYK PQKFFRKVES RISDKFKYII AQLMR DTES LAKRICKDLE NLSQIQNREF GTQKYEQWIV TVQKACMVFQ MPDKDEESRI CKALFLYTSH LRKYNDALII SEHARM KDA LDYLKDFFSN VRAAGFDEIE QDLTQRFEEK LQELESVSRD PSNENPKLED LCFILQEEYH LNPETITILF VKTRALV DA LKNWIEGNPK LSFLKPGILT GRGKTNQNTG MTLPAQKCIL DAFKASGDHN ILIATSVADE GIDIAQCNLV ILYEYVGN V IKMIQTRGRG RARGSKCFLL TSNAGVIEKE QINMYKEKMM NDSILRLQTW DEAVFREKIL HIQTHEKFIR DSQEKPKPV PDKENKKLLC RKCKALACYT ADVRVIEECH YTVLGDAFKE CFVSRPHPKP KQFSSFEKRA KIFCARQNCS HDWGIHVKYK TFEIPVIKI ESFVVEDIAT GVQTLYSKWK DFHFEKIPFD PAEMSK UniProtKB: Antiviral innate immune response receptor RIG-I |
-Macromolecule #2: OHSLR30
Macromolecule | Name: OHSLR30 / type: rna / ID: 2 / Number of copies: 1 |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 20.549197 KDa |
Sequence | String: GGAUCGAUCG AUCGAUCGGC AUCGAUCGGC UUCGGCCGAU CGAUGCCGAU CGAUCGAUCG AUCC |
-Macromolecule #3: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 3 / Number of copies: 1 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #4: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 4 / Number of copies: 1 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #5: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 5 / Number of copies: 1 / Formula: ADP |
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Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ChemComp-ADP: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS GLACIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm |