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- EMDB-27419: Cryo-EM Structure of RSV prefusion F trimer in complex with three... -
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Open data
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Basic information
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Title | Cryo-EM Structure of RSV prefusion F trimer in complex with three MxR Fabs | |||||||||
![]() | Sharp map to 2.2A resolution | |||||||||
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Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Rodarte JV / Pancera M | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cross-protective antibodies against common endemic respiratory viruses. Authors: Madelyn Cabán / Justas V Rodarte / Madeleine Bibby / Matthew D Gray / Justin J Taylor / Marie Pancera / Jim Boonyaratanakornkit / ![]() Abstract: Respiratory syncytial virus (RSV), human metapneumovirus (HMPV), and human parainfluenza virus types one (HPIV1) and three (HPIV3) can cause severe disease and death in immunocompromised patients, ...Respiratory syncytial virus (RSV), human metapneumovirus (HMPV), and human parainfluenza virus types one (HPIV1) and three (HPIV3) can cause severe disease and death in immunocompromised patients, the elderly, and those with underlying lung disease. A protective monoclonal antibody exists for RSV, but clinical use is limited to high-risk infant populations. Hence, therapeutic options for these viruses in vulnerable patient populations are currently limited. Here, we present the discovery, in vitro characterization, and in vivo efficacy testing of two cross-neutralizing monoclonal antibodies, one targeting both HPIV3 and HPIV1 and the other targeting both RSV and HMPV. The 3 × 1 antibody is capable of targeting multiple parainfluenza viruses; the MxR antibody shares features with other previously reported monoclonal antibodies that are capable of neutralizing both RSV and HMPV. We obtained structures using cryo-electron microscopy of these antibodies in complex with their antigens at 3.62 Å resolution for 3 × 1 bound to HPIV3 and at 2.24 Å for MxR bound to RSV, providing a structural basis for in vitro binding and neutralization. Together, a cocktail of 3 × 1 and MxR could have clinical utility in providing broad protection against four of the respiratory viruses that cause significant morbidity and mortality in at-risk individuals. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 204.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.2 KB 17.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 12.5 KB | Display | ![]() |
Images | ![]() | 65.7 KB | ||
Masks | ![]() | 216 MB | ![]() | |
Others | ![]() ![]() | 200.6 MB 200.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
EMDB pages | ![]() ![]() |
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Map
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Annotation | Sharp map to 2.2A resolution | ||||||||||||||||||||
Voxel size | X=Y=Z: 1.02885 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Density Histograms |
-Half map: Half Map A
File | emd_27419_half_map_1.map | ||||||||||||
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Annotation | Half Map A | ||||||||||||
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Density Histograms |
-Half map: Half Map B
File | emd_27419_half_map_2.map | ||||||||||||
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Annotation | Half Map B | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Trimeric complex of three MxR Fabs bound to RSV preF protomer
Entire | Name: Trimeric complex of three MxR Fabs bound to RSV preF protomer |
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Components |
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-Supramolecule #1: Trimeric complex of three MxR Fabs bound to RSV preF protomer
Supramolecule | Name: Trimeric complex of three MxR Fabs bound to RSV preF protomer type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 339 KDa |
-Macromolecule #1: Fusion glycoprotein F0
Macromolecule | Name: Fusion glycoprotein F0 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 63.526602 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MELLILKANA ITTILTAVTF CFASGQNITE EFYQSTCSAV SKGYLSALRT GWYTSVITIE LSNIKENKCN GTDAKVKLIK QELDKYKNA VTELQLLMQS TPATNNRARR ELPRFMNYTL NNAKKTNVTL SKKRKRRFLG FLLGVGSAIA SGVAVCKVLH L EGEVNKIK ...String: MELLILKANA ITTILTAVTF CFASGQNITE EFYQSTCSAV SKGYLSALRT GWYTSVITIE LSNIKENKCN GTDAKVKLIK QELDKYKNA VTELQLLMQS TPATNNRARR ELPRFMNYTL NNAKKTNVTL SKKRKRRFLG FLLGVGSAIA SGVAVCKVLH L EGEVNKIK SALLSTNKAV VSLSNGVSVL TFKVLDLKNY IDKQLLPILN KQSCSISNIE TVIEFQQKNN RLLEITREFS VN AGVTTPV STYMLTNSEL LSLINDMPIT NDQKKLMSNN VQIVRQQSYS IMCIIKEEVL AYVVQLPLYG VIDTPCWKLH TSP LCTTNT KEGSNICLTR TDRGWYCDNA GSVSFFPQAE TCKVQSNRVF CDTMNSLTLP SEVNLCNVDI FNPKYDCKIM TSKT DVSSS VITSLGAIVS CYGKTKCTAS NKNRGIIKTF SNGCDYVSNK GVDTVSVGNT LYYVNKQEGK SLYVKGEPII NFYDP LVFP SDEFDASISQ VNEKINQSLA FIRKSDELLS AIGGYIPEAP RDGQAYVRKD GEWVLLSTFL GLNDIFEAQK IEWHEG SHH HHHHHH |
-Macromolecule #2: mAb MxR Heavy Chain, VH region
Macromolecule | Name: mAb MxR Heavy Chain, VH region / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 12.952548 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: EVQVVESGGG LVKPGGSLRL SCAASGFPFS SYKMDWVRQA PGKGLEWVSS ISASGSYINY ADSVKGRFTI SRDNAKNSLY LQMKSLRAD DTAVYFCARD GGRELSPFEK WGQGILVTVS S |
-Macromolecule #3: mAb MxR Light Chain, VL region
Macromolecule | Name: mAb MxR Light Chain, VL region / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 11.606782 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: QSVLTQPPSV SGAPGQRVTI SCTGTNSNIG TGYDVHWYQQ LPGTAPKVVL FDNNNRPSGV PDRFSGSKSG TSAALAITGL QAEDEAVYY CQSYDKSLGG WVFGGGTKLT VL |
-Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 6 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | ![]() |
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Aggregation state | particle |
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Sample preparation
Concentration | 0.21 mg/mL |
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Buffer | pH: 7.5 |
Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 295 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |