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Yorodumi- EMDB-44006: SARS-CoV-2 Omicron-EG.5.1 one S1 disordered Spike Protein Trimer ... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-44006 | |||||||||
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Title | SARS-CoV-2 Omicron-EG.5.1 one S1 disordered Spike Protein Trimer (S-GSAS-Omicron-EG.5.1) | |||||||||
Map data | ||||||||||
Sample |
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Keywords | SARS-COV-2 / Glycoprotein / Trimer / VIRAL PROTEIN | |||||||||
Biological species | Severe acute respiratory syndrome coronavirus 2 | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||
Authors | Zhang QE / Acharya P | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Mol Cell / Year: 2024 Title: SARS-CoV-2 Omicron XBB lineage spike structures, conformations, antigenicity, and receptor recognition. Authors: Qianyi E Zhang / Jared Lindenberger / Ruth J Parsons / Bhishem Thakur / Rob Parks / Chan Soo Park / Xiao Huang / Salam Sammour / Katarzyna Janowska / Taylor N Spence / Robert J Edwards / ...Authors: Qianyi E Zhang / Jared Lindenberger / Ruth J Parsons / Bhishem Thakur / Rob Parks / Chan Soo Park / Xiao Huang / Salam Sammour / Katarzyna Janowska / Taylor N Spence / Robert J Edwards / Mitchell Martin / Wilton B Williams / Sophie Gobeil / David C Montefiori / Bette Korber / Kevin O Saunders / Barton F Haynes / Rory Henderson / Priyamvada Acharya / Abstract: A recombinant lineage of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant, named XBB, appeared in late 2022 and evolved descendants that successively swept local and ...A recombinant lineage of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant, named XBB, appeared in late 2022 and evolved descendants that successively swept local and global populations. XBB lineage members were noted for their improved immune evasion and transmissibility. Here, we determine cryoelectron microscopy (cryo-EM) structures of XBB.1.5, XBB.1.16, EG.5, and EG.5.1 spike (S) ectodomains to reveal reinforced 3-receptor binding domain (RBD)-down receptor-inaccessible closed states mediated by interprotomer RBD interactions previously observed in BA.1 and BA.2. Improved XBB.1.5 and XBB.1.16 RBD stability compensated for stability loss caused by early Omicron mutations, while the F456L substitution reduced EG.5 RBD stability. S1 subunit mutations had long-range impacts on conformation and epitope presentation in the S2 subunit. Our results reveal continued S protein evolution via simultaneous optimization of multiple parameters, including stability, receptor binding, and immune evasion, and the dramatic effects of relatively few residue substitutions in altering the S protein conformational landscape. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_44006.map.gz | 118.1 MB | EMDB map data format | |
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Header (meta data) | emd-44006-v30.xml emd-44006.xml | 16.5 KB 16.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_44006_fsc.xml | 10.6 KB | Display | FSC data file |
Images | emd_44006.png | 89.9 KB | ||
Filedesc metadata | emd-44006.cif.gz | 5.9 KB | ||
Others | emd_44006_half_map_1.map.gz emd_44006_half_map_2.map.gz | 116 MB 116 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-44006 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-44006 | HTTPS FTP |
-Validation report
Summary document | emd_44006_validation.pdf.gz | 1 MB | Display | EMDB validaton report |
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Full document | emd_44006_full_validation.pdf.gz | 1 MB | Display | |
Data in XML | emd_44006_validation.xml.gz | 19.1 KB | Display | |
Data in CIF | emd_44006_validation.cif.gz | 24.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-44006 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-44006 | HTTPS FTP |
-Related structure data
Related structure data | 8uirC 8uk1C 8ukdC 8ukfC 8v0lC 8v0mC 8v0nC 8v0oC 8v0pC 8v0qC 8v0rC 8v0sC 8v0tC 8v0uC 8v0vC 8v0wC 8v0xC 9aywC 9ayxC 9ayyC C: citing same article (ref.) |
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-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_44006.map.gz / Format: CCP4 / Size: 125 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: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_44006_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_44006_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : GSAS-EG.5.1
Entire | Name: GSAS-EG.5.1 |
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Components |
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-Supramolecule #1: GSAS-EG.5.1
Supramolecule | Name: GSAS-EG.5.1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
-Macromolecule #1: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MFVFLVLLPL VSSQCVNLIT RTQSYTNSFT RGVYYPDKVF RSSVLHSTHD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPA LPFNDGVYF ASTEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLD VYQKNNKSWM ESEFRVYSSA N NCTFEYVS ...String: MFVFLVLLPL VSSQCVNLIT RTQSYTNSFT RGVYYPDKVF RSSVLHSTHD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPA LPFNDGVYF ASTEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLD VYQKNNKSWM ESEFRVYSSA N NCTFEYVS QPFLMDLEGK EGNFKNLREF VFKNIDGYFK IYSKHTPINL ERDLPQGFSA LEPLVDLPIG INITRFQTLL AL HRSYLTP VDSSSGWTAG AAAYYVGYLQ PRTFLLKYNE NGTITDAVDC ALDPLSETKC TLKSFTVEKG IYQTSNFRVQ PTE SIVRFP NITNLCPFHE VFNATTFASV YAWNRKRISN CVADYSVIYN FAPFFAFKCY GVSPTKLNDL CFTNVYADSF VIRG NEVSQ IAPGQTGNIA DYNYKLPDDF TGCVIAWNSN KLDSKPSGNY NYLYRLLRKS KLKPFERDIS TEIYQAGNKP CNGVA GPNC YSPLQSYGFR PTYGVGHQPY RVVVLSFELL HAPATVCGPK KSTNLVKNKC VNFNFNGLTG TGVLTESNKK FLPFQQ FGR DIADTTDAVR DPQTLEILDI TPCSFGGVSV ITPGTNTSNQ VAVLYQGVNC TEVPVAIHAD QLTPTWRVYS TGSNVFQ TR AGCLIGAEYV NNSYECDIPI GAGICASYQT QTKSHGSASS VASQSIIAYT MSLGAENSVA YSNNSIAIPT NFTISVTT E ILPVSMTKTS VDCTMYICGD STECSNLLLQ YGSFCTQLKR ALTGIAVEQD KNTQEVFAQV KQIYKTPPIK YFGGFNFSQ ILPDPSKPSK RSFIEDLLFN KVTLADAGFI KQYGDCLGDI AARDLICAQK FNGLTVLPPL LTDEMIAQYT SALLAGTITS GWTFGAGAA LQIPFAMQMA YRFNGIGVTQ NVLYENQKLI ANQFNSAIGK IQDSLSSTAS ALGKLQDVVN HNAQALNTLV K QLSSKFGA ISSVLNDILS RLDKVEAEVQ IDRLITGRLQ SLQTYVTQQL IRAAEIRASA NLAATKMSEC VLGQSKRVDF CG KGYHLMS FPQSAPHGVV FLHVTYVPAQ EKNFTTAPAI CHDGKAHFPR EGVFVSNGTH WFVTQRNFYE PQIITTDNTF VSG NCDVVI GIVNNTVYDP LQPELDSFKE ELDKYFKNHT SPDVDLGDIS GINASVVNIQ KEIDRLNEVA KNLNESLIDL QELG KYEQG SGYIPEAPRD GQAYVRKDGE WVLLSTFLGR SLEVLFQGPG HHHHHHHHSA WSHPQFEKGG GSGGGGSGGS AWSHP QFEK |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 8 |
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 15 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 295.15 K / Instrument: LEICA EM GP |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number real images: 11757 / Average electron dose: 57.9 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 0.35000000000000003 µm / Nominal magnification: 81000 |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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