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- EMDB-7575: SARS Spike Glycoprotein, Stabilized variant, two S1 CTDs in the u... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-7575 | ||||||||||||
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Title | SARS Spike Glycoprotein, Stabilized variant, two S1 CTDs in the upwards conformation | ||||||||||||
![]() | primary-map | ||||||||||||
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Function / homology | ![]() 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 / symbiont-mediated suppression of host innate immune response / host cell surface receptor binding / 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 | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||||||||
![]() | Kirchdoerfer RN / Wang N / Pallesen J / Turner HL / Cottrell CA / McLellan JS / Ward AB | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Stabilized coronavirus spikes are resistant to conformational changes induced by receptor recognition or proteolysis. Authors: Robert N Kirchdoerfer / Nianshuang Wang / Jesper Pallesen / Daniel Wrapp / Hannah L Turner / Christopher A Cottrell / Kizzmekia S Corbett / Barney S Graham / Jason S McLellan / Andrew B Ward / ![]() Abstract: Severe acute respiratory syndrome coronavirus (SARS-CoV) emerged in 2002 as a highly transmissible pathogenic human betacoronavirus. The viral spike glycoprotein (S) utilizes angiotensin-converting ...Severe acute respiratory syndrome coronavirus (SARS-CoV) emerged in 2002 as a highly transmissible pathogenic human betacoronavirus. The viral spike glycoprotein (S) utilizes angiotensin-converting enzyme 2 (ACE2) as a host protein receptor and mediates fusion of the viral and host membranes, making S essential to viral entry into host cells and host species tropism. As SARS-CoV enters host cells, the viral S is believed to undergo a number of conformational transitions as it is cleaved by host proteases and binds to host receptors. We recently developed stabilizing mutations for coronavirus spikes that prevent the transition from the pre-fusion to post-fusion states. Here, we present cryo-EM analyses of a stabilized trimeric SARS-CoV S, as well as the trypsin-cleaved, stabilized S, and its interactions with ACE2. Neither binding to ACE2 nor cleavage by trypsin at the S1/S2 cleavage site impart large conformational changes within stabilized SARS-CoV S or expose the secondary cleavage site, S2'. | ||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 117 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21 KB 21 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.4 KB | Display | ![]() |
Images | ![]() | 144 KB | ||
Masks | ![]() | 125 MB | ![]() | |
Others | ![]() ![]() | 98.3 MB 98.2 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 869.2 KB | Display | ![]() |
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Full document | ![]() | 868.8 KB | Display | |
Data in XML | ![]() | 18.3 KB | Display | |
Data in CIF | ![]() | 23.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6crxMC ![]() 7573C ![]() 7574C ![]() 7576C ![]() 7577C ![]() 7578C ![]() 7579C ![]() 7580C ![]() 7581C ![]() 7582C ![]() 7584C ![]() 7585C ![]() 7586C ![]() 7601C ![]() 7602C ![]() 7603C ![]() 7604C ![]() 7605C ![]() 7606C ![]() 7607C ![]() 7608C ![]() 6crvC ![]() 6crwC ![]() 6crzC ![]() 6cs0C ![]() 6cs1C ![]() 6cs2C M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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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 | primary-map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.03 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
-Half map: em-half-volume P1
File | emd_7575_half_map_1.map | ||||||||||||
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Annotation | em-half-volume_P1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: em-half-volume P2
File | emd_7575_half_map_2.map | ||||||||||||
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Annotation | em-half-volume_P2 | ||||||||||||
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Density Histograms |
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Sample components
-Entire : SARS Spike Glycoprotein
Entire | Name: SARS Spike Glycoprotein |
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Components |
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-Supramolecule #1: SARS Spike Glycoprotein
Supramolecule | Name: SARS Spike Glycoprotein / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() |
Molecular weight | Theoretical: 540 KDa |
-Macromolecule #1: Spike glycoprotein,Fibritin
Macromolecule | Name: Spike glycoprotein,Fibritin / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 134.739266 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: SDLDRCTTFD DVQAPNYTQH TSSMRGVYYP DEIFRSDTLY LTQDLFLPFY SNVTGFHTIN HTFGNPVIPF KDGIYFAATE KSNVVRGWV FGSTMNNKSQ SVIIINNSTN VVIRACNFEL CDNPFFAVSK PMGTQTHTMI FDNAFNCTFE YISDAFSLDV S EKSGNFKH ...String: SDLDRCTTFD DVQAPNYTQH TSSMRGVYYP DEIFRSDTLY LTQDLFLPFY SNVTGFHTIN HTFGNPVIPF KDGIYFAATE KSNVVRGWV FGSTMNNKSQ SVIIINNSTN VVIRACNFEL CDNPFFAVSK PMGTQTHTMI FDNAFNCTFE YISDAFSLDV S EKSGNFKH LREFVFKNKD GFLYVYKGYQ PIDVVRDLPS GFNTLKPIFK LPLGINITNF RAILTAFSPA QDIWGTSAAA YF VGYLKPT TFMLKYDENG TITDAVDCSQ NPLAELKCSV KSFEIDKGIY QTSNFRVVPS GDVVRFPNIT NLCPFGEVFN ATK FPSVYA WERKKISNCV ADYSVLYNST FFSTFKCYGV SATKLNDLCF SNVYADSFVV KGDDVRQIAP GQTGVIADYN YKLP DDFMG CVLAWNTRNI DATSTGNYNY KYRYLRHGKL RPFERDISNV PFSPDGKPCT PPALNCYWPL NDYGFYTTTG IGYQP YRVV VLSFELLNAP ATVCGPKLST DLIKNQCVNF NFNGLTGTGV LTPSSKRFQP FQQFGRDVSD FTDSVRDPKT SEILDI SPC AFGGVSVITP GTNASSEVAV LYQDVNCTDV STAIHADQLT PAWRIYSTGN NVFQTQAGCL IGAEHVDTSY ECDIPIG AG ICASYHTVSL LRSTSQKSIV AYTMSLGADS SIAYSNNTIA IPTNFSISIT TEVMPVSMAK TSVDCNMYIC GDSTECAN L LLQYGSFCTQ LNRALSGIAA EQDRNTREVF AQVKQMYKTP TLKYFGGFNF SQILPDPLKP TKRSFIEDLL FNKVTLADA GFMKQYGECL GDINARDLIC AQKFNGLTVL PPLLTDDMIA AYTAALVSGT ATAGWTFGAG AALQIPFAMQ MAYRFNGIGV TQNVLYENQ KQIANQFNKA ISQIQESLTT TSTALGKLQD VVNQNAQALN TLVKQLSSNF GAISSVLNDI LSRLDPPEAE V QIDRLITG RLQSLQTYVT QQLIRAAEIR ASANLAATKM SECVLGQSKR VDFCGKGYHL MSFPQAAPHG VVFLHVTYVP SQ ERNFTTA PAICHEGKAY FPREGVFVFN GTSWFITQRN FFSPQIITTD NTFVSGNCDV VIGIINNTVY DPLQPELDSF KEE LDKYFK NHTSPDVDLG DISGINASVV NIQKEIDRLN EVAKNLNESL IDLQELGKYE QGSGYIPEAP RDGQAYVRKD GEWV LLSTF LGRSLEVLFQ |
-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: 7 / 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 | 0.35 mg/mL | ||||||||||||
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Buffer | pH: 7.5 Component:
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Grid | Model: C-flat-2/2 4C / Material: COPPER / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Atmosphere: OTHER | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 298 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Average exposure time: 0.25 sec. / Average electron dose: 65.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 29000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |