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Yorodumi- EMDB-9589: Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein an... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-9589 | |||||||||
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Title | Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein and ACE2 complex, ACE2-free conformation with one RBD in up conformation | |||||||||
Map data | ||||||||||
Sample |
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Keywords | SARS-CoV / spike / glycoprotein / Class I fusion protein / membrane fusion / VIRAL PROTEIN | |||||||||
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 | SARS coronavirus / Human SARS coronavirus | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
Authors | Gui M / Song W | |||||||||
Citation | Journal: PLoS Pathog / Year: 2018 Title: Cryo-EM structure of the SARS coronavirus spike glycoprotein in complex with its host cell receptor ACE2. Authors: Wenfei Song / Miao Gui / Xinquan Wang / Ye Xiang / Abstract: The trimeric SARS coronavirus (SARS-CoV) surface spike (S) glycoprotein consisting of three S1-S2 heterodimers binds the cellular receptor angiotensin-converting enzyme 2 (ACE2) and mediates fusion ...The trimeric SARS coronavirus (SARS-CoV) surface spike (S) glycoprotein consisting of three S1-S2 heterodimers binds the cellular receptor angiotensin-converting enzyme 2 (ACE2) and mediates fusion of the viral and cellular membranes through a pre- to postfusion conformation transition. Here, we report the structure of the SARS-CoV S glycoprotein in complex with its host cell receptor ACE2 revealed by cryo-electron microscopy (cryo-EM). The complex structure shows that only one receptor-binding domain of the trimeric S glycoprotein binds ACE2 and adopts a protruding "up" conformation. In addition, we studied the structures of the SARS-CoV S glycoprotein and its complexes with ACE2 in different in vitro conditions, which may mimic different conformational states of the S glycoprotein during virus entry. Disassociation of the S1-ACE2 complex from some of the prefusion spikes was observed and characterized. We also characterized the rosette-like structures of the clustered SARS-CoV S2 trimers in the postfusion state observed on electron micrographs. Structural comparisons suggested that the SARS-CoV S glycoprotein retains a prefusion architecture after trypsin cleavage into the S1 and S2 subunits and acidic pH treatment. However, binding to the receptor opens up the receptor-binding domain of S1, which could promote the release of the S1-ACE2 complex and S1 monomers from the prefusion spike and trigger the pre- to postfusion conformational transition. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_9589.map.gz | 76.4 MB | EMDB map data format | |
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Header (meta data) | emd-9589-v30.xml emd-9589.xml | 10.5 KB 10.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_9589_fsc.xml | 10.1 KB | Display | FSC data file |
Images | emd_9589.png | 140.9 KB | ||
Masks | emd_9589_msk_1.map | 91.1 MB | Mask map | |
Filedesc metadata | emd-9589.cif.gz | 5.7 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9589 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9589 | HTTPS FTP |
-Validation report
Summary document | emd_9589_validation.pdf.gz | 591.3 KB | Display | EMDB validaton report |
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Full document | emd_9589_full_validation.pdf.gz | 590.8 KB | Display | |
Data in XML | emd_9589_validation.xml.gz | 11.7 KB | Display | |
Data in CIF | emd_9589_validation.cif.gz | 15.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9589 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9589 | HTTPS FTP |
-Related structure data
Related structure data | 6acdMC 9583C 9584C 9585C 9586C 9587C 9588C 9591C 9593C 9594C 9595C 9596C 9597C 9598C 6accC 6acgC 6acjC 6ackC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_9589.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.32 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_9589_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein
Entire | Name: Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein |
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Components |
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-Supramolecule #1: Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein
Supramolecule | Name: Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: SARS coronavirus |
Molecular weight | Theoretical: 400 KDa |
-Macromolecule #1: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: Human SARS coronavirus |
Molecular weight | Theoretical: 133.763422 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MFIFLLFLTL TSGSDLDRCT TFDDVQAPNY TQHTSSMRGV YYPDEIFRSD TLYLTQDLFL PFYSNVTGFH TINHTFGNPV IPFKDGIYF AATEKSNVVR GWVFGSTMNN KSQSVIIINN STNVVIRACN FELCDNPFFA VSKPMGTQTH TMIFDNAFNC T FEYISDAF ...String: MFIFLLFLTL TSGSDLDRCT TFDDVQAPNY TQHTSSMRGV YYPDEIFRSD TLYLTQDLFL PFYSNVTGFH TINHTFGNPV IPFKDGIYF AATEKSNVVR GWVFGSTMNN KSQSVIIINN STNVVIRACN FELCDNPFFA VSKPMGTQTH TMIFDNAFNC T FEYISDAF SLDVSEKSGN FKHLREFVFK NKDGFLYVYK GYQPIDVVRD LPSGFNTLKP IFKLPLGINI TNFRAILTAF SP AQDIWGT SAAAYFVGYL KPTTFMLKYD ENGTITDAVD CSQNPLAELK CSVKSFEIDK GIYQTSNFRV VPSGDVVRFP NIT NLCPFG EVFNATKFPS VYAWERKKIS NCVADYSVLY NSTFFSTFKC YGVSATKLND LCFSNVYADS FVVKGDDVRQ IAPG QTGVI ADYNYKLPDD FMGCVLAWNT RNIDATSTGN YNYKYRYLRH GKLRPFERDI SNVPFSPDGK PCTPPALNCY WPLND YGFY TTTGIGYQPY RVVVLSFELL NAPATVCGPK LSTDLIKNQC VNFNFNGLTG TGVLTPSSKR FQPFQQFGRD VSDFTD SVR DPKTSEILDI SPCSFGGVSV ITPGTNASSE VAVLYQDVNC TDVSTAIHAD QLTPAWRIYS TGNNVFQTQA GCLIGAE HV DTSYECDIPI GAGICASYHT VSLLRSTSQK SIVAYTMSLG ADSSIAYSNN TIAIPTNFSI SITTEVMPVS MAKTSVDC N MYICGDSTEC ANLLLQYGSF CTQLNRALSG IAAEQDRNTR EVFAQVKQMY KTPTLKYFGG FNFSQILPDP LKPTKRSFI EDLLFNKVTL ADAGFMKQYG ECLGDINARD LICAQKFNGL TVLPPLLTDD MIAAYTAALV SGTATAGWTF GAGAALQIPF AMQMAYRFN GIGVTQNVLY ENQKQIANQF NKAISQIQES LTTTSTALGK LQDVVNQNAQ ALNTLVKQLS SNFGAISSVL N DILSRLDK VEAEVQIDRL ITGRLQSLQT YVTQQLIRAA EIRASANLAA TKMSECVLGQ SKRVDFCGKG YHLMSFPQAA PH GVVFLHV TYVPSQERNF TTAPAICHEG KAYFPREGVF VFNGTSWFIT QRNFFSPQII TTDNTFVSGN CDVVIGIINN TVY DPLQPE LDSFKEELDK YFKNHTSPDV DLGDISGINA SVVNIQKEID RLNEVAKNLN ESLIDLQELG KYEQYIKWPW SHPQ FEK UniProtKB: Spike glycoprotein |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 5.8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average exposure time: 8.0 sec. / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |