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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | CryoEM structure of A/Perth/16/2009 H3 | |||||||||
Map data | Perth09H3_sharp | |||||||||
Sample |
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Keywords | cryoEMPEM / Flu Hemagglutinin / Central stem epitope / VIRAL PROTEIN | |||||||||
| Biological species | ![]() Influenza A virus | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
Authors | Huang J / Han J / Ward AB | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Immunity / Year: 2024Title: Eliciting a single amino acid change by vaccination generates antibody protection against group 1 and group 2 influenza A viruses. Authors: Rashmi Ray / Faez Amokrane Nait Mohamed / Daniel P Maurer / Jiachen Huang / Berk A Alpay / Larance Ronsard / Zhenfei Xie / Julianna Han / Monica Fernandez-Quintero / Quynh Anh Phan / Rebecca ...Authors: Rashmi Ray / Faez Amokrane Nait Mohamed / Daniel P Maurer / Jiachen Huang / Berk A Alpay / Larance Ronsard / Zhenfei Xie / Julianna Han / Monica Fernandez-Quintero / Quynh Anh Phan / Rebecca L Ursin / Mya Vu / Kathrin H Kirsch / Thavaleak Prum / Victoria C Rosado / Thalia Bracamonte-Moreno / Vintus Okonkwo / Julia Bals / Caitlin McCarthy / Usha Nair / Masaru Kanekiyo / Andrew B Ward / Aaron G Schmidt / Facundo D Batista / Daniel Lingwood / ![]() Abstract: Broadly neutralizing antibodies (bnAbs) targeting the hemagglutinin (HA) stem of influenza A viruses (IAVs) tend to be effective against either group 1 or group 2 viral diversity. In rarer cases, ...Broadly neutralizing antibodies (bnAbs) targeting the hemagglutinin (HA) stem of influenza A viruses (IAVs) tend to be effective against either group 1 or group 2 viral diversity. In rarer cases, intergroup protective bnAbs can be generated by human antibody paratopes that accommodate the conserved glycan differences between the group 1 and group 2 stems. We applied germline-engaging nanoparticle immunogens to elicit a class of cross-group bnAbs from physiological precursor frequency within a humanized mouse model. Cross-group protection depended on the presence of the human bnAb precursors within the B cell repertoire, and the vaccine-expanded antibodies enriched for an N55T substitution in the CDRH2 loop, a hallmark of the bnAb class. Structurally, this single mutation introduced a flexible fulcrum to accommodate glycosylation differences and could alone enable cross-group protection. Thus, broad IAV immunity can be expanded from the germline repertoire via minimal antigenic input and an exceptionally simple antibody development pathway. | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_42535.map.gz | 203.8 MB | EMDB map data format | |
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| Header (meta data) | emd-42535-v30.xml emd-42535.xml | 15.3 KB 15.3 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_42535_fsc.xml | 12.7 KB | Display | FSC data file |
| Images | emd_42535.png | 54.3 KB | ||
| Filedesc metadata | emd-42535.cif.gz | 4.8 KB | ||
| Others | emd_42535_half_map_1.map.gz emd_42535_half_map_2.map.gz | 200.1 MB 200.1 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-42535 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-42535 | HTTPS FTP |
-Related structure data
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Map
| File | Download / File: emd_42535.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Perth09H3_sharp | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.725 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: Perth09H3 halfA
| File | emd_42535_half_map_1.map | ||||||||||||
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| Annotation | Perth09H3_halfA | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Perth09H3 halfB
| File | emd_42535_half_map_2.map | ||||||||||||
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| Annotation | Perth09H3_halfB | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
-Entire : A/Perth/16/2009 H3 HA
| Entire | Name: A/Perth/16/2009 H3 HA |
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| Components |
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-Supramolecule #1: A/Perth/16/2009 H3 HA
| Supramolecule | Name: A/Perth/16/2009 H3 HA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: ![]() Influenza A virus |
-Macromolecule #1: A/Perth/16/2009 H3 HA
| Macromolecule | Name: A/Perth/16/2009 H3 HA / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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| Sequence | String: QKLPGNDNST ATLCLGHHAV PNGTIVKTIT NDQIEVTNAT ELVQSSSTGE ICDSPHQILD GKNCTLIDAL LGDPQCDGFQ NKKWDLFVER SKAYSNCFPY DVPDYASLRS LVASSGTLEF NNESFNWTGV TQNGTSSACI RRSKNSFFSR LNWLTHLNFK YPALNVTMPN ...String: QKLPGNDNST ATLCLGHHAV PNGTIVKTIT NDQIEVTNAT ELVQSSSTGE ICDSPHQILD GKNCTLIDAL LGDPQCDGFQ NKKWDLFVER SKAYSNCFPY DVPDYASLRS LVASSGTLEF NNESFNWTGV TQNGTSSACI RRSKNSFFSR LNWLTHLNFK YPALNVTMPN NEQFDKLYIW GVHHPGTDKD QIFLYAQASG RITVSTKRSQ QTVSPNIGSR PRVRNIPSRI SIYWTIVKPG DILLINSTGN LIAPRGYFKI RSGKSSIMRS DAPIGKCNSE CITPNGSIPN DKPFQNVNRI TYGACPRYVK QNTLKLATGM RNVPE KQTR GIFGAIAGFI ENGWEGMVDG WYGFRHQNSE GRGQAADLKS TQAAIDQING KLNRLIGKTN EKFHQIEKEF SEVEGRIQDL EKYVEDTKID LWSYNAELLV ALENQHTIDL TDSEMNKLFE KTKKQLRENA EDMGNGCFKI YHKCDNACIG SIRNGTYDHD VYRDEALNNR FQI KGGSGY IPEAPRDGQA YVRKDGEWVL LSTFLGSGLN DIFEAQKIEW HEGHHHHHH |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.7 mg/mL | ||||||||
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| Buffer | pH: 7.4 Component:
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| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | TFS GLACIOS |
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| Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm |
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Keywords
Influenza A virus
Authors
United States, 1 items
Citation
















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Processing
FIELD EMISSION GUN
