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Yorodumi- EMDB-6968: Structure of RNA polymerase complex and genome within a dsRNA vir... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-6968 | |||||||||
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Title | Structure of RNA polymerase complex and genome within a dsRNA virus provides insights into the mechanisms of transcription and assembly | |||||||||
Map data | Symmetry-mismatch structure of aquareovirus | |||||||||
Sample |
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Function / homology | Function and homology information viral inner capsid / host cytoskeleton / 7-methylguanosine mRNA capping / viral genome replication / viral capsid / viral nucleocapsid / host cell cytoplasm / RNA helicase activity / RNA helicase / hydrolase activity ...viral inner capsid / host cytoskeleton / 7-methylguanosine mRNA capping / viral genome replication / viral capsid / viral nucleocapsid / host cell cytoplasm / RNA helicase activity / RNA helicase / hydrolase activity / RNA-directed RNA polymerase / RNA-dependent RNA polymerase activity / structural molecule activity / RNA binding / metal ion binding Similarity search - Function | |||||||||
Biological species | Grass carp reovirus | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
Authors | Liu H / Fang Q / Cheng L | |||||||||
Citation | Journal: Proc Natl Acad Sci U S A / Year: 2018 Title: Structure of RNA polymerase complex and genome within a dsRNA virus provides insights into the mechanisms of transcription and assembly. Authors: Xurong Wang / Fuxian Zhang / Rui Su / Xiaowu Li / Wenyuan Chen / Qingxiu Chen / Tao Yang / Jiawei Wang / Hongrong Liu / Qin Fang / Lingpeng Cheng / Abstract: Most double-stranded RNA (dsRNA) viruses transcribe RNA plus strands within a common innermost capsid shell. This process requires coordinated efforts by RNA-dependent RNA polymerase (RdRp) together ...Most double-stranded RNA (dsRNA) viruses transcribe RNA plus strands within a common innermost capsid shell. This process requires coordinated efforts by RNA-dependent RNA polymerase (RdRp) together with other capsid proteins and genomic RNA. Here we report the near-atomic resolution structure of the RdRp protein VP2 in complex with its cofactor protein VP4 and genomic RNA within an aquareovirus capsid using 200-kV cryoelectron microscopy and symmetry-mismatch reconstruction. The structure of these capsid proteins enabled us to observe the elaborate nonicosahedral structure within the double-layered icosahedral capsid. Our structure shows that the RdRp complex is anchored at the inner surface of the capsid shell and interacts with genomic dsRNA and four of the five asymmetrically arranged N termini of the capsid shell proteins under the fivefold axis, implying roles for these N termini in virus assembly. The binding site of the RNA end at VP2 is different from the RNA cap binding site identified in the crystal structure of orthoreovirus RdRp λ3, although the structures of VP2 and λ3 are almost identical. A loop, which was thought to separate the RNA template and transcript, interacts with an apical domain of the capsid shell protein, suggesting a mechanism for regulating RdRp replication and transcription. A conserved nucleoside triphosphate binding site was localized in our RdRp cofactor protein VP4 structure, and interactions between the VP4 and the genomic RNA were identified. | |||||||||
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_6968.map.gz | 2.3 GB | EMDB map data format | |
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Header (meta data) | emd-6968-v30.xml emd-6968.xml | 14.4 KB 14.4 KB | Display Display | EMDB header |
Images | emd_6968.png | 256.2 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-6968 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-6968 | HTTPS FTP |
-Validation report
Summary document | emd_6968_validation.pdf.gz | 649.4 KB | Display | EMDB validaton report |
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Full document | emd_6968_full_validation.pdf.gz | 648.9 KB | Display | |
Data in XML | emd_6968_validation.xml.gz | 10.9 KB | Display | |
Data in CIF | emd_6968_validation.cif.gz | 12.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6968 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6968 | HTTPS FTP |
-Related structure data
Related structure data | 5zvsMC 6969C 5zvtC 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_6968.map.gz / Format: CCP4 / Size: 2.7 GB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Symmetry-mismatch structure of aquareovirus | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.932 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Grass carp reovirus
Entire | Name: Grass carp reovirus |
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Components |
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-Supramolecule #1: Grass carp reovirus
Supramolecule | Name: Grass carp reovirus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 128987 / Sci species name: Grass carp reovirus / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No |
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Host system | Organism: Ctenopharyngodon idella (grass carp) |
-Macromolecule #1: VP3
Macromolecule | Name: VP3 / type: protein_or_peptide / ID: 1 / Number of copies: 10 / Enantiomer: LEVO |
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Source (natural) | Organism: Grass carp reovirus |
Molecular weight | Theoretical: 132.203312 KDa |
Recombinant expression | Organism: Ctenopharyngodon idella (grass carp) |
Sequence | String: MPRRSARKAQ SAIASPADTN VVPAKDAPTT NSPPSTTSPN QAAADANQQQ AGIVSSQSGP NAVGDSAPSS SVNNDGDIIT RPTSDSIAA VANATKPAAV VSDPQSMKVT PIVNPSSYVC NVCNARFSTM SALSEHLRSD HRDDASTLLA TPMINNAIRS F LTAWDDIR ...String: MPRRSARKAQ SAIASPADTN VVPAKDAPTT NSPPSTTSPN QAAADANQQQ AGIVSSQSGP NAVGDSAPSS SVNNDGDIIT RPTSDSIAA VANATKPAAV VSDPQSMKVT PIVNPSSYVC NVCNARFSTM SALSEHLRSD HRDDASTLLA TPMINNAIRS F LTAWDDIR ILSPDVSSKS LSAYLDSAVA NGPELIIEDT GLCTSFMLLD NIPSAHLTKE LIGFTWFMQM YQMTPPLPEG AV NRIVCMT NWASLGDEGR GLEVRLPPPT DSSVHAYKTV LSRGYIDNAQ FNPLALRSNV LLMLLQFTLS NLKINKSSTF TSD VTTITS GRMIRAFEGR PELLALAYPG RAVLPTQTKN AQFLSTAIAD RIGRLDRANL IGGEVSAMVE CMELCDALTL HIRE TYIML LRSMHQDPTQ IVQIVNECAN NLLNSTIPIS LRPTILCPWF ASSEDLRLQQ VMHLVNISSN TAAALPLVEA LSTLL RSVT PLVLDPTVLT NAITTISEST TQTISPISEI LRLLQPMGND YAAFWKCIAS WAYNGLVTTV LSEDAFPDSS QSITHL PSM WKCLFLTLAG PMTSDPHSPV KVFMALANLL AQPEPIAIGV PGMHQTTPAS QFSHPGVWPP GFLNPQLINP QQAPLLR AF AEHIRANWPQ PSEFGYGSTL QGSANLFIPS NRMVYPWPNQ PLPRLTVAPT YDSAMSNWIS TTIAFFIRVV NSVNMTAT V NDLTRRTMTG VMTAMRQVKT MTPFYIQHMC PTELSVLASV TVTPPFQVPF TRLVQNDVIT NVLVARVDPA QRGDAAVDI RATHATFAAA LPVDPAAIVV AMLCGQTETN LIPSHHYGKA FAPLFASNAM FTRNQRAVIT REAFVCARSA VAQCQDAGFL VPRPLDALR QFDVTSAAAA EIMHAVNDAF KTAFDLDGAL LDGLALYGDP RIADLSAAYL QYGGNVVREH VPPGPSHIHR A LQQVESTF MAEMNLFNVA RGNLYLVQTA TNGNWSPMAP VAAPPFVRGG PNVRVVGRFG TIVPRPNGLE PQLIDDGNVP RD IAGDWVY PSDVLQVSVA VFRDYVWPMV KAGRTRVLVE LGHYVYTLHY YDPQISLDEA PILEEWLSKI NPAGIPPVPF CIP IPQVYP CITARRVHYA FTSENNNDSL FSTNAASIDT AFGENAAVSP LRWPGLVDPN YRVGTNDLPN RITLYNSLYR YNFT YPTLD GIMYVRSAT |
-Macromolecule #2: VP2
Macromolecule | Name: VP2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Grass carp reovirus |
Molecular weight | Theoretical: 141.685438 KDa |
Recombinant expression | Organism: Ctenopharyngodon idella (grass carp) |
Sequence | String: MEELFNALPQ PLQQLSLALA GEIPLTDHIF EQAASTWHVQ PRSLTYKLLD HIPFATPVVV PPSIYHSLDW SKCFAVNQDR VERIPTIDN PDDVYVPNSD IGPLLTSLHT IPDYGFLHPT IENDATTLRA ERARCASTFY KIASSQARQV KLDPIRMLGF L LLVQARPR ...String: MEELFNALPQ PLQQLSLALA GEIPLTDHIF EQAASTWHVQ PRSLTYKLLD HIPFATPVVV PPSIYHSLDW SKCFAVNQDR VERIPTIDN PDDVYVPNSD IGPLLTSLHT IPDYGFLHPT IENDATTLRA ERARCASTFY KIASSQARQV KLDPIRMLGF L LLVQARPR VPSGLVTDQP TRRDPTLSPA LHAIWQVMQY YKVAGVYYAP ALVVPSGAIW WIPPPGKRNV VSVQYLLTDL IS LAILAHM TDMSPTLELT GVLMYLRAAS SHSYAYTLLQ MKSVFPALSL RSMYRNKGFG GKAPAIEWTE PRSKYKFRWT GVT QLHDGL RPRSPSMDVP TLETLAKYEL VDIGHTIIRE RNAHPQHNHD SVRFVRDVMA LTSGMYLVRQ PTMSVLREYS QVPD IKDPI PPSAWTGPIG NVRYLLPSVQ GPARHLYDTW RAAARQIAQD PQWHDPLNQA IMRAQYVTAR GGSSASLKFA LKVTG IVLP EYDDSKVKKS SKIYQAAQIA RIAFMLLIAA IHAEVTMGIR NQVQRRARSI MPLNVIQQAI SAPHTLVANY INKHMN LST TSGSVVTDKV IPLILYASTP PNTVVNVDIK ACDASITYNY FLSVICGAMH EGFEVGNADA AFMGVPSTIV SDRRSPV AP YSRPISGLQT MVQHLADLYA AGFRYSVSDA FSSGNKFSFP TSTFPSGSTA TSTEHTANNS TMMEYFLNVH APSHVKSA S LKRILTDMTI QRNYVCQGDD GILLLPHEAA SKISADDMNE LLTCLRDYGQ LFGWNYDIDW SDTAEYLKLY ALMGCRIPN TSRHPPVGKE YAAPQTDEIW PSLIDIVIGH HLNGVTDVLN WREWLRFSWA FACYSSRGGY TNPRGQSFSA QYPWWTFVYL GIPPILLPG QTPFIHSCYM PPGDQGMFSI LNGWRDWLIS HASTTLPPLR HNHPVWGLSD VPSLLSQFGV YAGYHAAQHY R RPKPAPET ASSDSINQIT SDLTEYLFYD SALKARVMKG RYNWERLSSS LSLNVGSRVP SLFDVPGKWV AAGRDAEKPP PS SVEDMFT SLNRCIRRPT HSFSRLLELY LRVHVALGES IPLAIDPDVP QVAGADPAND DHWFKYTCLG DIPSATRNYF GES LFVGRV VSGLDVEAVD ATLLRLKILG APPEAFIAVL NGIGMSDSEA HQIAGRISLA NAQLVQIARV VHLSIPSSWM TLNT GPYIH HHAYDFKPGI TQPSAKSRDK SIWMSPILKL LCTSYAMTVA GPVRTSIVTE IDGSAAALSG NLRVWMRDV |
-Macromolecule #3: Putative core protein NTPase/VP5
Macromolecule | Name: Putative core protein NTPase/VP5 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Grass carp reovirus |
Molecular weight | Theoretical: 80.381516 KDa |
Recombinant expression | Organism: Ctenopharyngodon idella (grass carp) |
Sequence | String: MITIVVIPTA HFSWTDTNFL NSVDYRLTSQ PKIRDRFAVY APGWLRRQLD EFSASLTASE LLQALQTIPI PVKARCLLLP KPKRFAQWL LDVPSANIWH IPVTTLRATV ASKHPSSDVY NYIPDHVPPN AEFDTVTRRV AAGRDIYVRS TKVIGAPLCL A APAKYYAG ...String: MITIVVIPTA HFSWTDTNFL NSVDYRLTSQ PKIRDRFAVY APGWLRRQLD EFSASLTASE LLQALQTIPI PVKARCLLLP KPKRFAQWL LDVPSANIWH IPVTTLRATV ASKHPSSDVY NYIPDHVPPN AEFDTVTRRV AAGRDIYVRS TKVIGAPLCL A APAKYYAG YLSTHQLDGI YPENWAPDNF HKREFCLTIL PSLLGPRTFL LDVDADRDAS YPLSVLWPQL RALALKSRLL LP PVALLRR VVDPGLKPTW SADSDAAFRA LRLSRPSSAS KPVGFDFSAL PVVDIICLLE SEPDDHGRIA PGTRLTIHSV PTD LLTSLS IQEGVRYPLR QESGMFVHWV LLALLMSDDV TISGTRRSVK LETAHASARP FVHITVERCA SARIIDVRGS PAMY ANAVC LTLPKGSYKS TIIDTLPAMF SDLPILEQAA VIDSDALGDS LRPSFETQFL ERLENLDPNL LDRAVASILS PTSDT SDDA VTTVLDAFNA LYREIMTPAQ RARLPLLTQQ GRVLAFAHSD YELLSANIPI QVVRGSIPID HVVNLLARRN RVGGTA LQV LLDYCYRTQA SPLAPTPAGR LYKQLFGPWL MVPRLSEPLI KLRLVASAPA KVLRAAGWTI DGDPPLEVSC LCAYVTD RA AATALIERRL DSRALVTVGG DQLMFVEYAP PLPLVSIPRT FLLPVTYVVH WVPPQRVLLN GGNVSFTSGL EWTFDDDP Q VVTSTGV |
-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 TECNAI ARCTICA |
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Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 25.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 41000 |
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Initial angle assignment | Type: COMMON LINE |
Final angle assignment | Type: COMMON LINE |