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Yorodumi- EMDB-13135: SARS-CoV-2 RdRp with Molnupiravir/ NHC in the template strand bas... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-13135 | ||||||||||||||||||
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Title | SARS-CoV-2 RdRp with Molnupiravir/ NHC in the template strand base-paired with A | ||||||||||||||||||
Map data | |||||||||||||||||||
Sample |
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Function / homology | Function and homology information protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs ...protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs / Translation of Replicase and Assembly of the Replication Transcription Complex / TRAF3-dependent IRF activation pathway / Replication of the SARS-CoV-2 genome / snRNP Assembly / double membrane vesicle viral factory outer membrane / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / SARS coronavirus main proteinase / host cell endosome / 3'-5'-RNA exonuclease activity / host cell endoplasmic reticulum-Golgi intermediate compartment / : / symbiont-mediated suppression of host toll-like receptor signaling pathway / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / SARS-CoV-2 modulates host translation machinery / omega peptidase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / mRNA (guanine-N7)-methyltransferase / host cell Golgi apparatus / methyltransferase cap1 / symbiont-mediated perturbation of host ubiquitin-like protein modification / mRNA (nucleoside-2'-O-)-methyltransferase activity / DNA helicase / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / host cell endoplasmic reticulum membrane / host cell perinuclear region of cytoplasm / viral protein processing / lyase activity / RNA helicase / induction by virus of host autophagy / copper ion binding / RNA-directed RNA polymerase / symbiont-mediated suppression of host gene expression / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / DNA-templated transcription / lipid binding / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / host cell nucleus / SARS-CoV-2 activates/modulates innate and adaptive immune responses / ATP hydrolysis activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane Similarity search - Function | ||||||||||||||||||
Biological species | Severe acute respiratory syndrome coronavirus 2 / synthetic construct (others) | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||||||||
Authors | Kabinger F / Stiller C / Schmitzova J / Dienemann C / Kokic G / Hillen HS / Hoebartner C / Cramer P | ||||||||||||||||||
Funding support | Germany, 5 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2021 Title: Mechanism of molnupiravir-induced SARS-CoV-2 mutagenesis. Authors: Florian Kabinger / Carina Stiller / Jana Schmitzová / Christian Dienemann / Goran Kokic / Hauke S Hillen / Claudia Höbartner / Patrick Cramer / Abstract: Molnupiravir is an orally available antiviral drug candidate currently in phase III trials for the treatment of patients with COVID-19. Molnupiravir increases the frequency of viral RNA mutations and ...Molnupiravir is an orally available antiviral drug candidate currently in phase III trials for the treatment of patients with COVID-19. Molnupiravir increases the frequency of viral RNA mutations and impairs SARS-CoV-2 replication in animal models and in humans. Here, we establish the molecular mechanisms underlying molnupiravir-induced RNA mutagenesis by the viral RNA-dependent RNA polymerase (RdRp). Biochemical assays show that the RdRp uses the active form of molnupiravir, β-D-N-hydroxycytidine (NHC) triphosphate, as a substrate instead of cytidine triphosphate or uridine triphosphate. When the RdRp uses the resulting RNA as a template, NHC directs incorporation of either G or A, leading to mutated RNA products. Structural analysis of RdRp-RNA complexes that contain mutagenesis products shows that NHC can form stable base pairs with either G or A in the RdRp active center, explaining how the polymerase escapes proofreading and synthesizes mutated RNA. This two-step mutagenesis mechanism probably applies to various viral polymerases and can explain the broad-spectrum antiviral activity of molnupiravir. #1: Journal: Biorxiv / Year: 2021 Title: Mechanism of molnupiravir-induced SARS-CoV-2 mutagenesis Authors: Kabinger F / Stiller C / Schmitzova J / Dienemann C / Hillen HS / Hobartner C / Cramer P | ||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_13135.map.gz | 48.6 MB | EMDB map data format | |
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Header (meta data) | emd-13135-v30.xml emd-13135.xml | 19.8 KB 19.8 KB | Display Display | EMDB header |
Images | emd_13135.png | 106.4 KB | ||
Masks | emd_13135_msk_1.map | 52.7 MB | Mask map | |
Others | emd_13135_half_map_1.map.gz emd_13135_half_map_2.map.gz | 40.9 MB 40.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-13135 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-13135 | HTTPS FTP |
-Related structure data
Related structure data | 7ozuMC 7ozvC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_13135.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Voxel size | X=Y=Z: 0.834 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_13135_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_13135_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_13135_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : RdRp
Entire | Name: RdRpRNA-dependent RNA polymerase |
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Components |
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-Supramolecule #1: RdRp
Supramolecule | Name: RdRp / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Molecular weight | Theoretical: 183.81 kDa/nm |
-Macromolecule #1: Replicase polyprotein 1ab
Macromolecule | Name: Replicase polyprotein 1ab / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Molecular weight | Theoretical: 106.780977 KDa |
Recombinant expression | Organism: Spodoptera aff. frugiperda 1 BOLD-2017 (butterflies/moths) |
Sequence | String: SADAQSFLNR VCGVSAARLT PCGTGTSTDV VYRAFDIYND KVAGFAKFLK TNCCRFQEKD EDDNLIDSYF VVKRHTFSNY QHEETIYNL LKDCPAVAKH DFFKFRIDGD MVPHISRQRL TKYTMADLVY ALRHFDEGNC DTLKEILVTY NCCDDDYFNK K DWYDFVEN ...String: SADAQSFLNR VCGVSAARLT PCGTGTSTDV VYRAFDIYND KVAGFAKFLK TNCCRFQEKD EDDNLIDSYF VVKRHTFSNY QHEETIYNL LKDCPAVAKH DFFKFRIDGD MVPHISRQRL TKYTMADLVY ALRHFDEGNC DTLKEILVTY NCCDDDYFNK K DWYDFVEN PDILRVYANL GERVRQALLK TVQFCDAMRN AGIVGVLTLD NQDLNGNWYD FGDFIQTTPG SGVPVVDSYY SL LMPILTL TRALTAESHV DTDLTKPYIK WDLLKYDFTE ERLKLFDRYF KYWDQTYHPN CVNCLDDRCI LHCANFNVLF STV FPPTSF GPLVRKIFVD GVPFVVSTGY HFRELGVVHN QDVNLHSSRL SFKELLVYAA DPAMHAASGN LLLDKRTTCF SVAA LTNNV AFQTVKPGNF NKDFYDFAVS KGFFKEGSSV ELKHFFFAQD GNAAISDYDY YRYNLPTMCD IRQLLFVVEV VDKYF DCYD GGCINANQVI VNNLDKSAGF PFNKWGKARL YYDSMSYEDQ DALFAYTKRN VIPTITQMNL KYAISAKNRA RTVAGV SIC STMTNRQFHQ KLLKSIAATR GATVVIGTSK FYGGWHNMLK TVYSDVENPH LMGWDYPKCD RAMPNMLRIM ASLVLAR KH TTCCSLSHRF YRLANECAQV LSEMVMCGGS LYVKPGGTSS GDATTAYANS VFNICQAVTA NVNALLSTDG NKIADKYV R NLQHRLYECL YRNRDVDTDF VNEFYAYLRK HFSMMILSDD AVVCFNSTYA SQGLVASIKN FKSVLYYQNN VFMSEAKCW TETDLTKGPH EFCSQHTMLV KQGDDYVYLP YPDPSRILGA GCFVDDIVKT DGTLMIERFV SLAIDAYPLT KHPNQEYADV FHLYLQYIR KLHDELTGHM LDMYSVMLTN DNTSRYWEPE FYEAMYTPHT VLQ |
-Macromolecule #2: Non-structural protein 8
Macromolecule | Name: Non-structural protein 8 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Molecular weight | Theoretical: 24.161445 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MGSSHHHHHH ENLYFQSNAA IASEFSSLPS YAAFATAQEA YEQAVANGDS EVVLKKLKKS LNVAKSEFDR DAAMQRKLEK MADQAMTQM YKQARSEDKR AKVTSAMQTM LFTMLRKLDN DALNNIINNA RDGCVPLNII PLTTAAKLMV VIPDYNTYKN T CDGTTFTY ...String: MGSSHHHHHH ENLYFQSNAA IASEFSSLPS YAAFATAQEA YEQAVANGDS EVVLKKLKKS LNVAKSEFDR DAAMQRKLEK MADQAMTQM YKQARSEDKR AKVTSAMQTM LFTMLRKLDN DALNNIINNA RDGCVPLNII PLTTAAKLMV VIPDYNTYKN T CDGTTFTY ASALWEIQQV VDADSKIVQL SEISMDNSPN LAWPLIVTAL RANSAVKLQ |
-Macromolecule #3: Non-structural protein 7
Macromolecule | Name: Non-structural protein 7 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Molecular weight | Theoretical: 9.279776 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: SNASKMSDVK CTSVVLLSVL QQLRVESSSK LWAQCVQLHN DILLAKDTTE AFEKMVSLLS VLLSMQGAVD INKLCEEMLD NRAT |
-Macromolecule #4: Product RNA
Macromolecule | Name: Product RNA / type: rna / ID: 4 / Number of copies: 1 |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 10.242101 KDa |
Sequence | String: UUGGUCUCAA UACGGUAUGA GCCUACGCAG UA |
-Macromolecule #5: Template RNA
Macromolecule | Name: Template RNA / type: rna / ID: 5 / Number of copies: 1 |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 10.539256 KDa |
Sequence | String: GG(7OK)ACUGCGU AGCUCAUACC GUAUUGAGAC CUU |
-Macromolecule #6: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 6 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 59.6 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
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Final angle assignment | Type: MAXIMUM LIKELIHOOD |
Final reconstruction | Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 373938 |