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Yorodumi- EMDB-26609: Structure of the VP5*/VP8* assembly from the human rotavirus stra... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-26609 | |||||||||
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Title | Structure of the VP5*/VP8* assembly from the human rotavirus strain CDC-9 - Reversed conformation | |||||||||
Map data | Reconstructed, sharpen_map. | |||||||||
Sample |
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Function / homology | Function and homology information viral intermediate capsid / host cell endoplasmic reticulum lumen / T=13 icosahedral viral capsid / host cell rough endoplasmic reticulum / host cytoskeleton / viral outer capsid / permeabilization of host organelle membrane involved in viral entry into host cell / symbiont entry into host cell via permeabilization of inner membrane / host cell endoplasmic reticulum-Golgi intermediate compartment / membrane => GO:0016020 ...viral intermediate capsid / host cell endoplasmic reticulum lumen / T=13 icosahedral viral capsid / host cell rough endoplasmic reticulum / host cytoskeleton / viral outer capsid / permeabilization of host organelle membrane involved in viral entry into host cell / symbiont entry into host cell via permeabilization of inner membrane / host cell endoplasmic reticulum-Golgi intermediate compartment / membrane => GO:0016020 / host cell surface receptor binding / fusion of virus membrane with host plasma membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / structural molecule activity / membrane / metal ion binding Similarity search - Function | |||||||||
Biological species | Rotavirus | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Jenni S / Zongli L / Wang Y / Bessey T / Salgado EN / Schmidt AG / Greenberg HB / Jiang B / Harrison SC | |||||||||
Funding support | United States, 1 items
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Citation | Journal: J Virol / Year: 2022 Title: Rotavirus VP4 Epitope of a Broadly Neutralizing Human Antibody Defined by Its Structure Bound with an Attenuated-Strain Virion. Authors: Simon Jenni / Zongli Li / Yuhuan Wang / Theresa Bessey / Eric N Salgado / Aaron G Schmidt / Harry B Greenberg / Baoming Jiang / Stephen C Harrison / Abstract: Rotavirus live-attenuated vaccines, both mono- and pentavalent, generate broadly heterotypic protection. B-cells isolated from adults encode neutralizing antibodies, some with affinity for VP5*, that ...Rotavirus live-attenuated vaccines, both mono- and pentavalent, generate broadly heterotypic protection. B-cells isolated from adults encode neutralizing antibodies, some with affinity for VP5*, that afford broad protection in mice. We have mapped the epitope of one such antibody by determining the high-resolution cryo-EM structure of its antigen-binding fragment (Fab) bound to the virion of a candidate vaccine strain, CDC-9. The Fab contacts both the distal end of a VP5* β-barrel domain and the two VP8* lectin-like domains at the tip of a projecting spike. Its interactions with VP8* do not impinge on the likely receptor-binding site, suggesting that the mechanism of neutralization is at a step subsequent to initial attachment. We also examined structures of CDC-9 virions from two different stages of serial passaging. Nearly all the VP4 (cleaved to VP8*/VP5*) spikes on particles from the earlier passage (wild-type isolate) had transitioned from the "upright" conformation present on fully infectious virions to the "reversed" conformation that is probably the end state of membrane insertion, unable to mediate penetration, consistent with the very low infectivity of the wild-type isolate. About half the VP4 spikes were upright on particles from the later passage, which had recovered substantial infectivity but had acquired an attenuated phenotype in neonatal rats. A mutation in VP4 that occurred during passaging appears to stabilize the interface at the apex of the spike and could account for the greater stability of the upright spikes on the late-passage, attenuated isolate. Rotavirus live-attenuated vaccines generate broadly heterotypic protection, and B-cells isolated from adults encode antibodies that are broadly protective in mice. Determining the structural and mechanistic basis of broad protection can contribute to understanding the current limitations of vaccine efficacy in developing countries. The structure of an attenuated human rotavirus isolate (CDC-9) bound with the Fab fragment of a broadly heterotypic protective antibody shows that protection is probably due to inhibition of the conformational transition in the viral spike protein (VP4) critical for viral penetration, rather than to inhibition of receptor binding. A comparison of structures of CDC-9 virus particles at two stages of serial passaging supports a proposed mechanism for initial steps in rotavirus membrane penetration. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_26609.map.gz | 113.8 MB | EMDB map data format | |
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Header (meta data) | emd-26609-v30.xml emd-26609.xml | 22.3 KB 22.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_26609_fsc.xml | 11.3 KB | Display | FSC data file |
Images | emd_26609.png | 88 KB | ||
Masks | emd_26609_msk_1.map | 125 MB | Mask map | |
Others | emd_26609_additional_1.map.gz emd_26609_additional_2.map.gz emd_26609_half_map_1.map.gz emd_26609_half_map_2.map.gz | 12.3 MB 12.3 MB 98.3 MB 98.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-26609 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26609 | HTTPS FTP |
-Related structure data
Related structure data | 7umtMC 7umsC 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_26609.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Annotation | Reconstructed, sharpen_map. | ||||||||||||||||||||
Voxel size | X=Y=Z: 1.231 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_26609_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: Half map 1, reconstructed, masked.
File | emd_26609_additional_1.map | ||||||||||||
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Annotation | Half map 1, reconstructed, masked. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Half map 2, reconstructed, masked.
File | emd_26609_additional_2.map | ||||||||||||
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Annotation | Half map 2, reconstructed, masked. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 1, reconstructed.
File | emd_26609_half_map_1.map | ||||||||||||
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Annotation | Half map 1, reconstructed. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 2, reconstructed.
File | emd_26609_half_map_2.map | ||||||||||||
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Annotation | Half map 2, reconstructed. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Rotavirus
Entire | Name: Rotavirus |
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Components |
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-Supramolecule #1: Rotavirus
Supramolecule | Name: Rotavirus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 / NCBI-ID: 10912 / Sci species name: Rotavirus / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: No |
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Host system | Organism: Chlorocebus aethiops (grivet) |
-Macromolecule #1: Outer capsid protein VP5*
Macromolecule | Name: Outer capsid protein VP5* / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: Rotavirus / Strain: CDC-9 |
Molecular weight | Theoretical: 59.605254 KDa |
Recombinant expression | Organism: Chlorocebus aethiops (grivet) |
Sequence | String: AQVDEDIIVS KTSLWKEMQY NRDIIIRFKF GNSIVKMGGL GYKWSEISYK AANYQYNYLR DGEQVTAHTT CSVNGVNNFS YNGGFLPTD FGISRYEVIK ENSYVYVDYW DDSKAFRNIV YVRSLAANLN SVRCTGGSYH FSLPVGAWPV INGGAVSLHF A GVTLSTQF ...String: AQVDEDIIVS KTSLWKEMQY NRDIIIRFKF GNSIVKMGGL GYKWSEISYK AANYQYNYLR DGEQVTAHTT CSVNGVNNFS YNGGFLPTD FGISRYEVIK ENSYVYVDYW DDSKAFRNIV YVRSLAANLN SVRCTGGSYH FSLPVGAWPV INGGAVSLHF A GVTLSTQF TDFVSLNSLR FRFSLTVDEP PFSILRTRTV NLYGLPAANP NNGNEYYEIS GRFSLISLVP TNDDYQTPIM NS VTVRQDL ERQLTNLREE FNSLSQEIAM AQLIDLALLP LDMFSMFSGI KSTIDLTKSM ATSVMKKFRK SKLATSISEM TNS LSDAAS SASRNVSIRS NLSAISNWTN VSNDVSNVTN SLNDISTQTS TIGKKLRLKE MITQTEGMSF DDISAAVLKT KIDM STQIG KNTLPDIVTE ASEKFIPKRS YRILKDDEVM EINTEGKFFA YKINTFDEVP FDVNKFAELV TDSPVISAII DFKTL KNLN DNYGITRTEA LNLIKSNPNM LRNFINQNNP IIRNRIEQLI LQCKL |
-Macromolecule #2: Intermediate capsid protein VP6
Macromolecule | Name: Intermediate capsid protein VP6 / type: protein_or_peptide / ID: 2 / Number of copies: 18 / Enantiomer: LEVO |
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Source (natural) | Organism: Rotavirus / Strain: CDC-9 |
Molecular weight | Theoretical: 44.994965 KDa |
Recombinant expression | Organism: Chlorocebus aethiops (grivet) |
Sequence | String: MEVLYSLSKT LKDARDKIVE GTLYSNVSDL IQQFNQMIVT MNGNDFQTGG IGNLPIRNWT FDFGLLGTTL LNLDANYVET ARTTIEYFI DFIDNVCMDE MVRESQRNGV APQSEALRKL AGIKFKRINF NNSSEYIENW NLQNRRQRTG FVFHKPNIFP Y SASFTLNR ...String: MEVLYSLSKT LKDARDKIVE GTLYSNVSDL IQQFNQMIVT MNGNDFQTGG IGNLPIRNWT FDFGLLGTTL LNLDANYVET ARTTIEYFI DFIDNVCMDE MVRESQRNGV APQSEALRKL AGIKFKRINF NNSSEYIENW NLQNRRQRTG FVFHKPNIFP Y SASFTLNR SQPMHDNLMG TMWLNAGSEI QVAGFDYSCA LNAPANIQQF EHIVQLRRAL TTATITLLPD AERFSFPRVI NS ADGATTW FFNPIILRPN NVEVEFLLNG QIINTYQARF GTIVARNFDT IRLSFQLMRP PNMTPAVNAL FPQAQPFQHH ATV GLTLRI ESAVCESVLA DANETLLANV TAVRQEYAIP VGPVFPPGMN WTELITNYSP SREDNLQRVF TVASIRSMLI K |
-Macromolecule #3: Outer capsid glycoprotein VP7
Macromolecule | Name: Outer capsid glycoprotein VP7 / type: protein_or_peptide / ID: 3 / Number of copies: 18 / Enantiomer: LEVO |
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Source (natural) | Organism: Rotavirus / Strain: CDC-9 |
Molecular weight | Theoretical: 37.435934 KDa |
Recombinant expression | Organism: Chlorocebus aethiops (grivet) |
Sequence | String: MYGIEYTTIL IFLISIILLN YILKSVTRIM DYIIYRFLLI FVALFALTKA QNYGLNIPIT GSMDTVYSNS TREEVFLTST LCLYYPTEA STQISDGEWK DSLSQMFLIK GWPTGSVYFK EYSNIVDFSV DPQLYCDYNL VLMKYDQSLE LDMSELADLI L NEWLCNPM ...String: MYGIEYTTIL IFLISIILLN YILKSVTRIM DYIIYRFLLI FVALFALTKA QNYGLNIPIT GSMDTVYSNS TREEVFLTST LCLYYPTEA STQISDGEWK DSLSQMFLIK GWPTGSVYFK EYSNIVDFSV DPQLYCDYNL VLMKYDQSLE LDMSELADLI L NEWLCNPM DITLYYYQQS GESNKWISMG SSCTVKVCPL NTQTLGIGCQ TTNVDSFETV AENEKLAIVD VVDGINHKIN LT TTTCTIR NCKKLGPREN VAVIQVGGAN ILDITADPTT NPQIERMMRV NWKRWWQVFY TIVDYINQIV QVMSKRSRSL NSA AFYYRV |
-Macromolecule #5: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 5 / Number of copies: 35 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ChemComp-NAG: |
-Macromolecule #6: CALCIUM ION
Macromolecule | Name: CALCIUM ION / type: ligand / ID: 6 / Number of copies: 72 / Formula: CA |
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Molecular weight | Theoretical: 40.078 Da |
-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 | FEI POLARA 300 |
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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 / Nominal defocus max: 3.5 µm / Nominal defocus min: 1.0 µm |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 60.0 e/Å2 |
Experimental equipment | Model: Tecnai Polara / Image courtesy: FEI Company |