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- EMDB-46638: JN.1 SARS-COV-2 Spike 1-up conformation -

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Basic information

Entry
Database: EMDB / ID: EMD-46638
TitleJN.1 SARS-COV-2 Spike 1-up conformation
Map dataOriginal 3D map
Sample
  • Complex: S protein trimer
    • Protein or peptide: Spike glycoprotein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsvaccine / antigen / COVID / fusogen / VIRUS
Function / homology
Function and homology information


symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / 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 / receptor ligand activity / 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 / symbiont entry into host cell / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / 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. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / 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. / 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 S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / 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 speciesSevere acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsWindsor IW / Wu H
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: To Be Published
Title: SARS-CoV-2 JN.1 and KP.2 spike characteristics and neutralization of JN.1-derived sublineages and T cell responses from mice immunized with monovalent JN.1- and KP.2-adapted BNT162b2 COVID-19 vaccines
Authors: Windsor IW / Wu H
History
DepositionAug 19, 2024-
Header (metadata) releaseOct 29, 2025-
Map releaseOct 29, 2025-
UpdateOct 29, 2025-
Current statusOct 29, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_46638.png

Downloads & links

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Map

FileDownload / File: emd_46638.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationOriginal 3D map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.73 Å/pix.
x 360 pix.
= 263.88 Å		0.73 Å/pix.
x 360 pix.
= 263.88 Å		0.73 Å/pix.
x 360 pix.
= 263.88 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.733 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-0.737915 - 1.0483117
Average (Standard dev.)0.000870586 (±0.0308321)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 263.88 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Local resolution filtered map used for model building

Fileemd_46638_additional_1.map
AnnotationLocal resolution filtered map used for model building
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map A

Fileemd_46638_half_map_1.map
AnnotationHalf map A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map B

Fileemd_46638_half_map_2.map
AnnotationHalf map B
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : S protein trimer

EntireName: S protein trimer
Components
  • Complex: S protein trimer
    • Protein or peptide: Spike glycoprotein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: S protein trimer

SupramoleculeName: S protein trimer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1
Details: 2P-stablized, full-length, JN.1 SARS-CoV-2 S protein
Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 144.602062 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSQCVMPLF NLITTTQSYT NSFTRGVYYP DKVFRSSVLH LTQDLFLPFF SNVTWFHAIS GTNGTKRFDN PVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVFIKV CEFQFCNDPF LDVYHKNNKS WMESESGVYS S ANNCTFEY ...String:
MFVFLVLLPL VSSQCVMPLF NLITTTQSYT NSFTRGVYYP DKVFRSSVLH LTQDLFLPFF SNVTWFHAIS GTNGTKRFDN PVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVFIKV CEFQFCNDPF LDVYHKNNKS WMESESGVYS S ANNCTFEY VSQPFLMDLE GKQGNFKNLR EFVFKNIDGY FKIYSKHTPI IGRDFPQGFS ALEPLVDLPI GINITRFQTL LA LNRSYLT PGDSSSGWTA GAADYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPT ESIVRF PNVTNLCPFH EVFNATRFAS VYAWNRTRIS NCVADYSVLY NFAPFFAFKC YGVSPTKLND LCFTNVYADS FVIK GNEVS QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKHSGN YDYWYRSFRK SKLKPFERDI STEIYQAGNK PCKGK GPNC YFPLQSYGFR PTYGVGHQPY RVVVLSFELL HAPATVCGPK KSTNLVKNKC VNFNFNGLTG TGVLTKSNKK FLPFQQ FGR DIVDTTDAVR DPQTLEILDI TPCSFGGVSV ITPGTNTSNQ VAVLYQGVNC TEVSVAIHAD QLTPTWRVYS TGSNVFQ TR AGCLIGAEYV NNSYECDIPI GAGICASYQT QTKSRRRARS 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 IQDSLFSTAS ALGKLQDVVN HNAQALNTLV K QLSSKFGA ISSVLNDILS RLDPPEAEVQ IDRLITGRLQ SLQTYVTQQL IRAAEIRASA NLAATKMSEC VLGQSKRVDF CG KGYHLMS FPQSAPHGVV FLHVTYVPAQ EKNFTTAPAI CHDGKAHFPR EGVFVSNGTH WFVTQRNFYE PQIITTDNTF VSG NCDVVI GIVNNTVYDP LQLELDSFKE ELDKYFKNHT SPDVDLGDIS GINASVVNIQ KEIDRLNEVA KNLNESLIDL QELG KYEQY IKWPWYIWLG FIAGLIAIVM VTIMLCCMTS CCSCLKGCCS CGSCCKFDED DSEPVLKGVK LHYTGGGGSG GGGSW SHPQ FEKGGGGSGG GGSWSHPQFE K

UniProtKB: Spike glycoprotein

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Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 24 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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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

Concentration5.6 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 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: 0.4 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: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 138507
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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