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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | Apo Hantaan virus polymerase in monomeric state | |||||||||
![]() | Hantaan virus polymerase apo cryo-EM map | |||||||||
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![]() | Bunyavirus / Hantaan virus / polymerase / dimer / VIRAL PROTEIN | |||||||||
Function / homology | ![]() RNA-templated viral transcription / negative stranded viral RNA replication / cap snatching / endonuclease activity / Hydrolases; Acting on ester bonds / host cell perinuclear region of cytoplasm / RNA-directed RNA polymerase / RNA-dependent RNA polymerase activity / DNA-templated transcription / nucleotide binding / metal ion binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.6 Å | |||||||||
![]() | Durieux Trouilleton Q / Arragain B / Malet H | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural characterization of the oligomerization of full-length Hantaan virus polymerase into symmetric dimers and hexamers. Authors: Quentin Durieux Trouilleton / Dominique Housset / Paco Tarillon / Benoît Arragain / Hélène Malet / ![]() Abstract: Hantaan virus is a dangerous human pathogen whose segmented negative-stranded RNA genome is replicated and transcribed by a virally-encoded multi-functional polymerase. Here we describe the complete ...Hantaan virus is a dangerous human pathogen whose segmented negative-stranded RNA genome is replicated and transcribed by a virally-encoded multi-functional polymerase. Here we describe the complete cryo-electron microscopy structure of Hantaan virus polymerase in several oligomeric forms. Apo polymerase protomers can adopt two drastically different conformations, which assemble into two distinct symmetric homodimers, that can themselves gather to form hexamers. Polymerase dimerization induces the stabilization of most polymerase domains, including the C-terminal domain that contributes the most to dimer's interface, along with a lariat region that participates to the polymerase steadying. Binding to viral RNA induces significant conformational changes resulting in symmetric oligomer disruption and polymerase activation, suggesting the possible involvement of apo multimers as protecting systems that would stabilize the otherwise flexible C-terminal domains. Overall, these results provide insights into the multimerization capability of Hantavirus polymerase and may help to define antiviral compounds to counteract these life-threatening viruses. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 3.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 20.6 KB 20.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.7 KB | Display | ![]() |
Images | ![]() | 81.6 KB | ||
Filedesc metadata | ![]() | 7.6 KB | ||
Others | ![]() ![]() | 154.5 MB 154.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8qe5MC ![]() 8qgtC ![]() 8qguC ![]() 8qh3C ![]() 8qhdC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Map
File | ![]() | ||||||||||||||||||||
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Annotation | Hantaan virus polymerase apo cryo-EM map | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.839 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Hantaan virus polymerase apo cryo-EM halp-map map A
File | emd_18343_half_map_1.map | ||||||||||||
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Annotation | Hantaan virus polymerase apo cryo-EM halp-map map A | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Hantaan virus polymerase apo cryo-EM halp-map map B
File | emd_18343_half_map_2.map | ||||||||||||
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Annotation | Hantaan virus polymerase apo cryo-EM halp-map map B | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Hantaan virus polymerase
Entire | Name: Hantaan virus polymerase |
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Components |
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-Supramolecule #1: Hantaan virus polymerase
Supramolecule | Name: Hantaan virus polymerase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 250 KDa |
-Macromolecule #1: RNA-directed RNA polymerase L
Macromolecule | Name: RNA-directed RNA polymerase L / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 249.476484 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGHHHHHHDY DIPTTENLYF QGMDKYREIH NKLKEFSPGT LTAVECIDYL DRLYAVRHDI VDQMIKHDWS DNKDSEEAIG KVLLFAGVP SNIITALEKK IIPNHPTGKS LKAFFKMTPD NYKISGTTIE FVEVTVTADV DKGIREKKLK YEAGLTYIEQ E LHKFFLKG ...String: MGHHHHHHDY DIPTTENLYF QGMDKYREIH NKLKEFSPGT LTAVECIDYL DRLYAVRHDI VDQMIKHDWS DNKDSEEAIG KVLLFAGVP SNIITALEKK IIPNHPTGKS LKAFFKMTPD NYKISGTTIE FVEVTVTADV DKGIREKKLK YEAGLTYIEQ E LHKFFLKG EIPQPYKITF NVVAVRTDGS NITTQWPSRR NDGVVQYMRL VQAEISYVRE HLIKTEERAA LEAMFNLKFN IS THKSQPY YIPDYKGMEP IGANIEDLVD YSKDWLSRAR NFSFFEVKGT AVFECFNSNE ANHCQRYPMS RKPRNFLLIQ CSL ITSYKP ATTLSDQIDS RRACSYILNL IPDTPASYLI HDMAYRYINL TREDMINYYA PRIQFKQTQN VREPGTFKLT SSML RAESK AMLDLLNNHK SGEKHGAQIE SLNIASHIVQ SESVSLITKI LSDLELNITE PSTQEYSTTK HTYVDTVLDK FFQNE TQKY LIDVLKKTTA WHIGHLIRDI TESLIAHSGL KRSKYWSLHS YNNGNVILFI LPSKSLEVAG SFIRFITVFR IGPGLV DKD NLDTILIDGD SQWGVSKVMS IDLNRLLALN IAFEKALIAT ATWFQYYTED QGQFPLQYAI RSVFANHFLL AICQKMK LC AIFDNLRYLI PAVTSLYSGF PSLIEKLFER PFKSSLEVYI YYNIKSLLVA LAQNNKARFY SKVKLLGLTV DQSTVGAS G VYPSFMSRIV YKHYRSLISE VTTCFFLFEK GLHGNMNEEA KIHLETVEWA LKFREKEEKY GESLVENGYM MWELRANAE LAEQQLYCQD AIELAAIELN KVLATKSSVV ANSILSKNWE EPYFSQTRNI SLKGMSGQVQ EDGHLSSSVT IIEAIRYLSN SRHNPSLLK LYEETREQKA MARIVRKYQR TEADRGFFIT TLPTRCRLEI IEDYYDAIAK NISEEYISYG GEKKILAIQG A LEKALRWA SGESFIELSN HKFIRMKRKL MYVSADATKW SPGDNSAKFR RFTSMLHNGL PNNKLKNCVI DALKQVYKTD FF MSRKLRN YIDSMESLDP HIKQFLDFFP DGHHGEVKGN WLQGNLNKCS SLFGVAMSLL FKQVWTNLFP ELDCFFEFAH HSD DALFIY GYLEPVDDGT DWFLFVSQQI QAGHLHWFSV NTEMWKSMFN LHEHILLLGS IKISPKKTTV SPTNAEFLST FFEG CAVSI PFVKILLGSL SDLPGLGYFD DLAAAQSRCV KALDLGASPQ VAQLAVALCT SKVERLYGTA PGMVNHPAAY LQVKH TDTP IPLGGNGAMS IMELATAGIG MSDKNLLKRA LLGYSHKRQK SMLYILGLFK FLMKLSDETF QHERLGQFSF IGKVQW KIF TPKSEFEFAD MYTSKFLELW SSQHVTYDYI IPKGRDNLLI YLVRKLNDPS IVTAMTMQSP LQLRFRMQAK QHMKVCR LD GEWVTFREVL AAANSFAENY SATSQDMDLF QTLTSCTFSK EYAWKDFLNG IHCDVIPTKQ VQRAKVARTF TVREKDQI I QNSIPAVIGY KFAVTVEEMS DVLDTAKFPD SLSVDLKTMK DGVYRELGLD ISLPDVMKRI APMLYKSSKS RVVIVQGNV EGTAEAICRY WLKSMSLVKT IRVKPHKEVL QAVSIFNRKE DIGQQKDLAA LKLCIEVWRW CKANSAPYRD WFQALWFEDK TFSEWLDRF CRVGVPPIDP EIQCAALMIA DIKGDYSVLQ LQANRRAYSG KQYDAYCVQT YNEVTKLYEG DLRVTFNFGL D CARLEIFW DKKAYILETS ITQKHVLKIM MDEVSKELIK CGMRFNTEQV QGVRHMVLFK TESGFEWGKP NIPCIVYKNC VL RTSLRTT QAINHKFMIT IKDDGLRAIA QHDEDSPRFL LAHAFHTIRD IRYQAVDAVS NVWFIHKGVK LYLNPIISSG LLE NFMKNL PAAIPPAAYS LIMNRAKISV DLFMFNDLLK LINPRNTLDL SGLETTGDEF STVSSMSSRL WSEEMSLVDD DEEL DDEFT IDLQDVDFEN IDIEADIEHF LQDESSYTGD LLISTEETES KKMRGIVKIL EPVRLIKSWV SRGLSIEKVY SPVNI ILMS RYISKTFNLS TKQVSLLDPY DLTELESIVR GWGECVIDQF ESLDREAQNM VVNKGICPED VIPDSLFSFR HTMVLL RRL FPQDSISSFY UniProtKB: RNA-directed RNA polymerase L |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.25 mg/mL | ||||||||||||
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Buffer | pH: 8 Component:
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Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 50 sec. / Pretreatment - Atmosphere: AIR / Details: 25 mA | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 77 K / Instrument: FEI VITROBOT MARK IV / Details: blot force 1 3s. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 1 / Number real images: 14650 / Average exposure time: 1.45 sec. / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Calibrated defocus max: 2.0 µm / Calibrated defocus min: 0.8 µm / Calibrated magnification: 105000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |