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- EMDB-6704: Prefusion structure of MERS-CoV spike glycoprotein, three-fold sy... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-6704 | |||||||||
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Title | Prefusion structure of MERS-CoV spike glycoprotein, three-fold symmetry | |||||||||
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Function / homology | ![]() endocytosis involved in viral entry into host cell / 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 / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.7 Å | |||||||||
![]() | Yuan Y / Cao D / Zhang Y / Ma J / Qi J / Wang Q / Lu G / Wu Y / Yan J / Shi Y ...Yuan Y / Cao D / Zhang Y / Ma J / Qi J / Wang Q / Lu G / Wu Y / Yan J / Shi Y / Zhang X / Gao GF | |||||||||
![]() | ![]() Title: Cryo-EM structures of MERS-CoV and SARS-CoV spike glycoproteins reveal the dynamic receptor binding domains. Authors: Yuan Yuan / Duanfang Cao / Yanfang Zhang / Jun Ma / Jianxun Qi / Qihui Wang / Guangwen Lu / Ying Wu / Jinghua Yan / Yi Shi / Xinzheng Zhang / George F Gao / ![]() Abstract: The envelope spike (S) proteins of MERS-CoV and SARS-CoV determine the virus host tropism and entry into host cells, and constitute a promising target for the development of prophylactics and ...The envelope spike (S) proteins of MERS-CoV and SARS-CoV determine the virus host tropism and entry into host cells, and constitute a promising target for the development of prophylactics and therapeutics. Here, we present high-resolution structures of the trimeric MERS-CoV and SARS-CoV S proteins in its pre-fusion conformation by single particle cryo-electron microscopy. The overall structures resemble that from other coronaviruses including HKU1, MHV and NL63 reported recently, with the exception of the receptor binding domain (RBD). We captured two states of the RBD with receptor binding region either buried (lying state) or exposed (standing state), demonstrating an inherently flexible RBD readily recognized by the receptor. Further sequence conservation analysis of six human-infecting coronaviruses revealed that the fusion peptide, HR1 region and the central helix are potential targets for eliciting broadly neutralizing antibodies. | |||||||||
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 | ![]() | 59.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 10.9 KB 10.9 KB | Display Display | ![]() |
Images | ![]() | 115.6 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5x59MC ![]() 6703C ![]() 6705C ![]() 6706C ![]() 6707C ![]() 5x4rC ![]() 5x4sC ![]() 5x58C ![]() 5x5bC ![]() 5x5cC ![]() 5x5fC 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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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Voxel size | X=Y=Z: 1.3 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : MERS-CoV spike trimer
Entire | Name: MERS-CoV spike trimer |
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Components |
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-Supramolecule #1: MERS-CoV spike trimer
Supramolecule | Name: MERS-CoV spike trimer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #1: S protein
Macromolecule | Name: S protein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 145.856203 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: YVDVGPDSVK SACIEVDIQQ TFFDKTWPRP IDVSKADGII YPQGRTYSNI TITYQGLFPY QGDHGDMYVY SAGHATGTTP QKLFVANYS QDVKQFANGF VVRIGAAANS TGTVIISPST SATIRKIYPA FMLGSSVGNF SDGKMGRFFN HTLVLLPDGC G TLLRAFYC ...String: YVDVGPDSVK SACIEVDIQQ TFFDKTWPRP IDVSKADGII YPQGRTYSNI TITYQGLFPY QGDHGDMYVY SAGHATGTTP QKLFVANYS QDVKQFANGF VVRIGAAANS TGTVIISPST SATIRKIYPA FMLGSSVGNF SDGKMGRFFN HTLVLLPDGC G TLLRAFYC ILEPRSGNHC PAGNSYTSFA TYHTPATDCS DGNYNRNASL NSFKEYFNLR NCTFMYTYNI TEDEILEWFG IT QTAQGVH LFSSRYVDLY GGNMFQFATL PVYDTIKYYS IIPHSIRSIQ SDRKAWAAFY VYKLQPLTFL LDFSVDGYIR RAI DCGFND LSQLHCSYES FDVESGVYSV SSFEAKPSGS VVEQAEGVEC DFSPLLSGTP PQVYNFKRLV FTNCNYNLTK LLSL FSVND FTCSQISPAA IASNCYSSLI LDYFSYPLSM KSDLSVSSAG PISQFNYKQS FSNPTCLILA TVPHNLTTIT KPLKY SYIN KCSRLLSDDR TEVPQLVNAN QYSPCVSIVP STVWEDGDYY RKQLSPLEGG GWLVASGSTV AMTEQLQMGF GITVQY GTD TNSVCPKLEF ANDTKIASQL GNCVEYSLYG VSGRGVFQNC TAVGVRQQRF VYDAYQNLVG YYSDDGNYYC LRACVSV PV SVIYDKETKT HATLFGSVAC EHISSTMSQY SRSTRSMLKR RDSTYGPLQT PVGCVLGLVN SSLFVEDCKL PLGQSLCA L PDTPSTLTPR SVSSVPGEMR LASIAFNHPI QVDQLNSSYF KLSIPTNFSF GVTQEYIQTT IQKVTVDCKQ YVCNGFQKC EQLLREYGQF CSKINQALHG ANLRQDDSVR NLFASVKSSQ SSPIIPGFGG DFNLTLLEPV SISTGSRSAR SAIEDLLFDK VTIADPGYM QGYDDCMQQG PASARDLICA QYVAGYKVLP PLMDVNMEAA YTSSLLGSIA GVGWTAGLSS FAAIPFAQSI F YRLNGVGI TQQVLSENQK LIANKFNQAL GAMQTGFTTT NEAFQKVQDA VNNNAQALSK LASELSNTFG AISASIGDII QR LDVLEQD AQIDRLINGR LTTLNAFVAQ QLVRSESAAL SAQLAKDKVN ECVKAQSKRS GFCGQGTHIV SFVVNAPNGL YFM HVGYYP SNHIEVVSAY GLCDAANPTN CIAPVNGYFI KTNNTRIVDE WSYTGSSFYA PEPITSLNTK YVAPQVTYQN ISTN LPPPL LGNSTGIDFQ DELDEFFKNV STSIPNFGSL TQINTTLLDL TYEMLSLQQV VKALNESYID LKELGNYTYY NKEFR LVPR GSPGSGYIPE APRDGQAYVR KDGEWVLLST FLGHHHHHH |
-Macromolecule #2: N-ACETYL-D-GLUCOSAMINE
Macromolecule | Name: N-ACETYL-D-GLUCOSAMINE / type: ligand / ID: 2 / Number of copies: 30 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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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) / Average electron dose: 8.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 60000 |
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Initial angle assignment | Type: PROJECTION MATCHING |
Final angle assignment | Type: PROJECTION MATCHING |