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Yorodumi- PDB-8h00: SARS-CoV-2 Omicron BA.1 Spike glycoprotein in complex with rabbit... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8h00 | ||||||
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Title | SARS-CoV-2 Omicron BA.1 Spike glycoprotein in complex with rabbit monoclonal antibody 1H1 Fab in the class 1 conformation | ||||||
Components |
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Keywords | VIRAL PROTEIN/IMMUNE SYSTEM / VIRAL PROTEIN-IMMUNE SYSTEM COMPLEX | ||||||
Function / homology | Function and homology information Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / membrane / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | Severe acute respiratory syndrome coronavirus 2 Oryctolagus cuniculus (rabbit) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.41 Å | ||||||
Authors | Guo, H. / Gao, Y. / Lu, Y. / Yang, H. / Ji, X. | ||||||
Funding support | China, 1items
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Citation | Journal: Commun Biol / Year: 2023 Title: Mechanism of a rabbit monoclonal antibody broadly neutralizing SARS-CoV-2 variants. Authors: Hangtian Guo / Yixuan Yang / Tiantian Zhao / Yuchi Lu / Yan Gao / Tinghan Li / Hang Xiao / Xiaoyu Chu / Le Zheng / Wanting Li / Hao Cheng / Haibin Huang / Yang Liu / Yang Lou / Henry C ...Authors: Hangtian Guo / Yixuan Yang / Tiantian Zhao / Yuchi Lu / Yan Gao / Tinghan Li / Hang Xiao / Xiaoyu Chu / Le Zheng / Wanting Li / Hao Cheng / Haibin Huang / Yang Liu / Yang Lou / Henry C Nguyen / Chao Wu / Yuxin Chen / Haitao Yang / Xiaoyun Ji / Abstract: Due to the continuous evolution of SARS-CoV-2, the Omicron variant has emerged and exhibits severe immune evasion. The high number of mutations at key antigenic sites on the spike protein has made a ...Due to the continuous evolution of SARS-CoV-2, the Omicron variant has emerged and exhibits severe immune evasion. The high number of mutations at key antigenic sites on the spike protein has made a large number of existing antibodies and vaccines ineffective against this variant. Therefore, it is urgent to develop efficient broad-spectrum neutralizing therapeutic drugs. Here we characterize a rabbit monoclonal antibody (RmAb) 1H1 with broad-spectrum neutralizing potency against Omicron sublineages including BA.1, BA.1.1, BA.2, BA.2.12.1, BA.2.75, BA.3 and BA.4/5. Cryo-electron microscopy (cryo-EM) structure determination of the BA.1 spike-1H1 Fab complexes shows that 1H1 targets a highly conserved region of RBD and avoids most of the circulating Omicron mutations, explaining its broad-spectrum neutralization potency. Our findings indicate 1H1 as a promising RmAb model for designing broad-spectrum neutralizing antibodies and shed light on the development of therapeutic agents as well as effective vaccines against newly emerging variants in the future. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8h00.cif.gz | 680.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8h00.ent.gz | 552.1 KB | Display | PDB format |
PDBx/mmJSON format | 8h00.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/h0/8h00 ftp://data.pdbj.org/pub/pdb/validation_reports/h0/8h00 | HTTPS FTP |
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-Related structure data
Related structure data | 34407MC 8gzzC 8h01C 8ituC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 142620.094 Da / Num. of mol.: 3 Mutation: R683S, R685S, F817P, A892P, A899P, A942P, K986P, V987P Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: S, 2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2 #2: Antibody | Mass: 11739.082 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Oryctolagus cuniculus (rabbit) / Cell line (production host): HEK293 / Production host: Homo sapiens (human) #3: Antibody | Mass: 12863.201 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Oryctolagus cuniculus (rabbit) / Cell line (production host): HEK293 / Production host: Homo sapiens (human) #4: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #5: Sugar | ChemComp-NAG / Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
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Source (recombinant) |
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Buffer solution | pH: 7.4 | ||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2800 nm / Nominal defocus min: 1200 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.41 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 69259 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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