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- EMDB-68193: Post-fusion structure of MERS-CoV spike glycoprotein -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-68193
TitlePost-fusion structure of MERS-CoV spike glycoprotein
Map data
Sample
  • Complex: Post-fusion structure of MERS-CoV spike glycoprotein
    • Protein or peptide: Spike glycoprotein
KeywordsMERS-CoV / S protein / Post-fusion structure / Viral protein
Function / homology
Function and homology information


positive regulation of viral entry into host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / endocytosis involved in viral entry into 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
Spike (S) protein S1 subunit, receptor-binding domain, MERS-CoV / Spike (S) protein S1 subunit, N-terminal domain, MERS-CoV-like / Spike glycoprotein S2, coronavirus, C-terminal / Coronavirus spike glycoprotein S2, intravirion / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal ...Spike (S) protein S1 subunit, receptor-binding domain, MERS-CoV / Spike (S) protein S1 subunit, N-terminal domain, MERS-CoV-like / Spike glycoprotein S2, coronavirus, C-terminal / Coronavirus spike glycoprotein S2, intravirion / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesEscherichia phage T4 (virus) / Betacoronavirus England 1
Methodsingle particle reconstruction / cryo EM / Resolution: 3.23 Å
AuthorsWang YJ / Sun L
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)92469108 China
CitationJournal: To Be Published
Title: Post-fusion structure of MERS-CoV spike glycoprotein
Authors: Wang YJ / Sun L
History
DepositionJan 7, 2026-
Header (metadata) releaseSep 2, 2026-
Map releaseSep 2, 2026-
UpdateSep 2, 2026-
Current statusSep 2, 2026Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_68193.png

Downloads & links

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Map

FileDownload / File: emd_68193.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.93 Å/pix.
x 400 pix.
= 372.8 Å		0.93 Å/pix.
x 400 pix.
= 372.8 Å		0.93 Å/pix.
x 400 pix.
= 372.8 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.932 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.12
Minimum - Maximum-0.3813247 - 1.1367964
Average (Standard dev.)0.000064762615 (±0.022759693)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 372.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_68193_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_68193_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Post-fusion structure of MERS-CoV spike glycoprotein

EntireName: Post-fusion structure of MERS-CoV spike glycoprotein
Components
  • Complex: Post-fusion structure of MERS-CoV spike glycoprotein
    • Protein or peptide: Spike glycoprotein

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Supramolecule #1: Post-fusion structure of MERS-CoV spike glycoprotein

SupramoleculeName: Post-fusion structure of MERS-CoV spike glycoprotein / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Escherichia phage T4 (virus)

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Betacoronavirus England 1
Molecular weightTheoretical: 147.846609 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MIHSVFLLMF LLTPTESYVD VGPDSVKSAC IEVDIQQTFF DKTWPRPIDV SKADGIIYPQ GRTYSNITIT YQGLFPYQGD HGDMYVYSA GHATGTTPQK LFVANYSQDV KQFANGFVVR IGAAANSTGT VIISPSTSAT IRKIYPAFML GSSVGNFSDG K MGRFFNHT ...String:
MIHSVFLLMF LLTPTESYVD VGPDSVKSAC IEVDIQQTFF DKTWPRPIDV SKADGIIYPQ GRTYSNITIT YQGLFPYQGD HGDMYVYSA GHATGTTPQK LFVANYSQDV KQFANGFVVR IGAAANSTGT VIISPSTSAT IRKIYPAFML GSSVGNFSDG K MGRFFNHT LVLLPDGCGT LLRAFYCILE PRSGNHCPAG NSYTSFATYH TPATDCSDGN YNRNASLNSF KEYFNLRNCT FM YTYNITE DEILEWFGIT QTAQGVHLFS SRYVDLYGGN MFQFATLPVY DTIKYYSIIP HSIRSIQSDR KAWAAFYVYK LQP LTFLLD FSVDGYIRRA IDCGFNDLSQ LHCSYESFDV ESGVYSVSSF EAKPSGSVVE QAEGVECDFS PLLSGTPPQV YNFK RLVFT NCNYNLTKLL SLFSVNDFTC SQISPAAIAS NCYSSLILDY FSYPLSMKSD LSVSSAGPIS QFNYKQSFSN PTCLI LATV PHNLTTITKP LKYSYINKCS RFLSDDRTEV PQLVNANQYS PCVSIVPSTV WEDGDYYRKQ LSPLEGGGWL VASGST VAM TEQLQMGFGI TVQYGTDTNS VCPKLEFAND TKIASQLGNC VEYSLYGVSG RGVFQNCTAV GVRQQRFVYD AYQNLVG YY SDDGNYYCLR ACVSVPVSVI YDKETKTHAT LFGSVACEHI SSTMSQYSRS TRSMLKRRDS TYGPLQTPVG CVLGLVNS S LFVEDCKLPL GQSLCALPDT PSTLTPRSVR SVPGEMRLAS IAFNHPIQVD QLNSSYFKLS IPTNFSFGVT QEYIQTTIQ KVTVDCKQYV CNGFQKCEQL LREYGQFCSK INQALHGANL RQDDSVRNLF ASVKSSQSSP IIPGFGGDFN LTLLEPVSIS TGSRSARSA IEDLLFDKVT IADPGYMQGY DDCMQQGPAS ARDLICAQYV AGYKVLPPLM DVNMEAAYTS SLLGSIAGVG W TAGLSSFA AIPFAQSIFY RLNGVGITQQ VLSENQKLIA NKFNQALGAM QTGFTTTNEA FHKVQDAVNN NAQALSKLAS EL SNTFGAI SASIGDIIQR LDVLEQDAQI DRLINGRLTT LNAFVAQQLV RSESAALSAQ LAKDKVNECV KAQSKRSGFC GQG THIVSF VVNAPNGLYF MHVGYYPSNH IEVVSAYGLC DAANPTNCIA PVNGYFIKTN NTRIVDEWSY TGSSFYAPEP ITSL NTKYV APQVTYQNIS TNLPPPLLGN STGIDFQDEL DEFFKNVSTS IPNFGSLTQI NTTLLDLTYE MLSLQQVVKA LNESY IDLK ELGNYTYGSG YIPEAPRDGQ AYVRKDGEWV LLSTFLGRSL EVLFQGPGHH HHHHHH

UniProtKB: Spike glycoprotein

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER / Details: Predict the initial structure with SWISS
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.23 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 34251
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING

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