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Yorodumi- PDB-8h16: Structure of SARS-CoV-1 Spike Protein (S/native) at pH 5.5, Open ... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8h16 | ||||||
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Title | Structure of SARS-CoV-1 Spike Protein (S/native) at pH 5.5, Open Conformation | ||||||
Components | Spike glycoprotein | ||||||
Keywords | VIRAL PROTEIN / PROTEIN ENGINEERING / SPIKE PROTEIN / SARS-COV-1 / SARS-COV | ||||||
Function / homology | Function and homology information Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Attachment and Entry / endocytosis involved in viral entry into host cell / SARS-CoV-1 activates/modulates innate immune responses / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / membrane fusion / positive regulation of viral entry into host cell ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Attachment and Entry / endocytosis involved in viral entry into host cell / SARS-CoV-1 activates/modulates innate immune responses / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / identical protein binding / membrane Similarity search - Function | ||||||
Biological species | Severe acute respiratory syndrome coronavirus | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.35534 Å | ||||||
Authors | Zhang, X. / Li, Z. / Liu, Y. / Wang, J. / Fu, L. / Wang, P. / He, J. / Xiong, X. | ||||||
Funding support | China, 1items
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Citation | Journal: Life Sci Alliance / Year: 2023 Title: Disulfide stabilization reveals conserved dynamic features between SARS-CoV-1 and SARS-CoV-2 spikes. Authors: Xixi Zhang / Zimu Li / Yanjun Zhang / Yutong Liu / Jingjing Wang / Banghui Liu / Qiuluan Chen / Qian Wang / Lutang Fu / Peiyi Wang / Xiaolin Zhong / Liang Jin / Qihong Yan / Ling Chen / Jun ...Authors: Xixi Zhang / Zimu Li / Yanjun Zhang / Yutong Liu / Jingjing Wang / Banghui Liu / Qiuluan Chen / Qian Wang / Lutang Fu / Peiyi Wang / Xiaolin Zhong / Liang Jin / Qihong Yan / Ling Chen / Jun He / Jincun Zhao / Xiaoli Xiong / Abstract: SARS-CoV-2 spike protein (S) is structurally dynamic and has been observed by cryo-EM to adopt a variety of prefusion conformations that can be categorized as locked, closed, and open. S-trimers ...SARS-CoV-2 spike protein (S) is structurally dynamic and has been observed by cryo-EM to adopt a variety of prefusion conformations that can be categorized as locked, closed, and open. S-trimers adopting locked conformations are tightly packed featuring structural elements incompatible with RBD in the "up" position. For SARS-CoV-2 S, it has been shown that the locked conformations are transient under neutral pH. Probably because of their transience, locked conformations remain largely uncharacterized for SARS-CoV-1 S. In this study, we introduced x1, x2, and x3 disulfides into SARS-CoV-1 S. Some of these disulfides have been shown to preserve rare locked conformations when introduced to SARS-CoV-2 S. Introduction of these disulfides allowed us to image a variety of locked and other rare conformations for SARS-CoV-1 S by cryo-EM. We identified bound cofactors and structural features that are associated with SARS-CoV-1 S locked conformations. We compare newly determined structures with other available spike structures of SARS-related CoVs to identify conserved features and discuss their possible functions. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8h16.cif.gz | 506.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8h16.ent.gz | 402.2 KB | Display | PDB format |
PDBx/mmJSON format | 8h16.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8h16_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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Full document | 8h16_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | 8h16_validation.xml.gz | 80.6 KB | Display | |
Data in CIF | 8h16_validation.cif.gz | 121.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/h1/8h16 ftp://data.pdbj.org/pub/pdb/validation_reports/h1/8h16 | HTTPS FTP |
-Related structure data
Related structure data | 34426MC 8h0xC 8h0yC 8h0zC 8h10C 8h11C 8h12C 8h13C 8h14C 8h15C 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: 136675.250 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus Gene: S, 2 / Plasmid: pCDNA3.1 / Cell line (production host): Expi293 / Organ (production host): Kidney / Production host: Homo sapiens (human) / References: UniProt: P59594 #2: Sugar | ChemComp-NAG / Has ligand of interest | N | Has protein modification | 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
Component | Name: SARS-CoV-1 spike protein / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT | |||||||||||||||||||||||||
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Molecular weight | Value: 0.41 MDa / Experimental value: NO | |||||||||||||||||||||||||
Source (natural) | Organism: Severe acute respiratory syndrome coronavirus / Strain: SARS coronavirus Tor2 | |||||||||||||||||||||||||
Source (recombinant) | Organism: Homo sapiens (human) / Cell: Expi293 / Plasmid: pCDNA3.1 | |||||||||||||||||||||||||
Buffer solution | pH: 5.54 / Details: Gibco PBS C10010 | |||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 6.68 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 K |
-Electron microscopy imaging
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 45000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 1.8 sec. / Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 |
-Processing
Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1375445 / Details: Particles were picked by Warp v1.09 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.35534 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 308387 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 28 / Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7XTZ Accession code: 7XTZ / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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