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- EMDB-42534: CryoEM structure of A/Shanghai/1/2013 H7 in complex with polyclon... -
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Open data
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Basic information
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Title | CryoEM structure of A/Shanghai/1/2013 H7 in complex with polyclonal Fab from mice immunized with H7 stem nanoparticles-28 days post immunization | |||||||||
![]() | ShanghaiH7_H7D28_sharp | |||||||||
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![]() | cryoEMPEM / Flu Hemagglutinin / Central stem epitope / VH1-18 / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() viral budding from plasma membrane / clathrin-dependent endocytosis of virus by host cell / host cell surface receptor binding / apical plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
![]() | Huang J / Han J / Ward AB | |||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 306.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.1 KB 21.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.6 KB | Display | ![]() |
Images | ![]() | 92.1 KB | ||
Filedesc metadata | ![]() | 6.5 KB | ||
Others | ![]() ![]() | 301.4 MB 301.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8ut9MC ![]() 8ut3C ![]() 8ut4C ![]() 8ut5C ![]() 8ut6C ![]() 8ut7C ![]() 8ut8C ![]() 8uwaC 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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Related items in Molecule of the Month |
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Map
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Annotation | ShanghaiH7_H7D28_sharp | ||||||||||||||||||||
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: ShanghaiH7 H7D28 halfA
File | emd_42534_half_map_1.map | ||||||||||||
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Annotation | ShanghaiH7_H7D28_halfA | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: ShanghaiH7 H7D28 halfB
File | emd_42534_half_map_2.map | ||||||||||||
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Annotation | ShanghaiH7_H7D28_halfB | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Mice polyclonal Fab complex with one protomer of a H7 trimer
Entire | Name: Mice polyclonal Fab complex with one protomer of a H7 trimer |
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Components |
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-Supramolecule #1: Mice polyclonal Fab complex with one protomer of a H7 trimer
Supramolecule | Name: Mice polyclonal Fab complex with one protomer of a H7 trimer type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: ![]() ![]() |
-Supramolecule #2: H7D28 polyclonal Fab purified from mice sera
Supramolecule | Name: H7D28 polyclonal Fab purified from mice sera / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #3-#4 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Hemagglutinin HA1 chain
Macromolecule | Name: Hemagglutinin HA1 chain / type: protein_or_peptide / ID: 1 / Details: A/Shanghai/1/2013 H7 HA1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 34.58293 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DKICLGHHAV SNGTKVNTLT ERGVEVVNAT ETVERTNIPR ICSKGKRTVD LGQCGLLGTI TGPPQCDQFL EFSADLIIER REGSDVCFP GKFVNEEALR QILRESGGID KEAMGFTYSG IRTNGATSSC RRSGSSFYAE MKWLLSNTDN AAFPQMTKSY K NTRKNPAL ...String: DKICLGHHAV SNGTKVNTLT ERGVEVVNAT ETVERTNIPR ICSKGKRTVD LGQCGLLGTI TGPPQCDQFL EFSADLIIER REGSDVCFP GKFVNEEALR QILRESGGID KEAMGFTYSG IRTNGATSSC RRSGSSFYAE MKWLLSNTDN AAFPQMTKSY K NTRKNPAL IVWGIHHSGS TAEQTKLYGS GNKLVTVGSS NYQQSFVPSP GARTQVNGQS GRIDFHWLML NPNDTVTFSF NG AFIAPDR ASFLRGKSMG IQSGVQVDAD CEGDCYYSGG TIISNLPFQN IDSRAVGKCP RYVKQRSLLL ATGMKNVPEI UniProtKB: Hemagglutinin |
-Macromolecule #2: Hemagglutinin HA2 chain
Macromolecule | Name: Hemagglutinin HA2 chain / type: protein_or_peptide / ID: 2 / Details: A/Shanghai/1/2013 H7 HA2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 26.598201 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: PKGRGLFGAI AGFIENGWEG LIDGWYGFRH QNAQGEGTAA DYKSTQSAID QITGKLNRLI EKTNQQFELI DNEFTEVEKQ IGNVINWTR DSITEVWSYN AELLVAMENQ HTIDLADSEM DKLYERVKRQ LRENAEEDGT GCFEIFHKCD DDCMASIRNN T YDHSKYRE ...String: PKGRGLFGAI AGFIENGWEG LIDGWYGFRH QNAQGEGTAA DYKSTQSAID QITGKLNRLI EKTNQQFELI DNEFTEVEKQ IGNVINWTR DSITEVWSYN AELLVAMENQ HTIDLADSEM DKLYERVKRQ LRENAEEDGT GCFEIFHKCD DDCMASIRNN T YDHSKYRE EAMQNRIQID GSGYIPEAPR DGQAYVRKDG EWVLLSTFLG SGLNDIFEAQ KIEWHEGHHH HHH UniProtKB: Hemagglutinin |
-Macromolecule #3: H7D28 pFab HC Fv_polyA
Macromolecule | Name: H7D28 pFab HC Fv_polyA / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 10.741231 KDa |
Sequence | String: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) |
-Macromolecule #4: H7D28 pFab LC Fv_polyA
Macromolecule | Name: H7D28 pFab LC Fv_polyA / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 9.209344 KDa |
Sequence | String: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) |
-Macromolecule #7: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 7 / Number of copies: 9 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.7 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: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm |