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- PDB-9j4t: Structural basis for recognition of SARS-CoV-2 conserved nucleoca... -

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Basic information

Entry
Database: PDB / ID: 9j4t
TitleStructural basis for recognition of SARS-CoV-2 conserved nucleocapside epitopes by dominant T cell receptors
Components
  • (SPR epitope specific TCR CLB1 ...) x 2
  • Beta-2-microglobulin
  • HLA class I histocompatibility antigen, B alpha chain
  • Nucleoprotein
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / TCR / T cell receptor / SARS-CoV-2 / Nucleocapside / HLA-B7 / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


: / response to host immune response / viral RNA genome packaging / regulation of interleukin-12 production / negative regulation of interferon-beta production / regulation of dendritic cell differentiation / regulation of T cell anergy / regulation of interleukin-6 production / Maturation of nucleoprotein / poly(U) RNA binding ...: / response to host immune response / viral RNA genome packaging / regulation of interleukin-12 production / negative regulation of interferon-beta production / regulation of dendritic cell differentiation / regulation of T cell anergy / regulation of interleukin-6 production / Maturation of nucleoprotein / poly(U) RNA binding / intracellular membraneless organelle / positive regulation of NLRP3 inflammasome complex assembly / MHC class I protein binding / TAP binding / protection from natural killer cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / CD28 dependent PI3K/Akt signaling / detection of bacterium / SARS-CoV-2 targets host intracellular signalling and regulatory pathways / protein sequestering activity / secretory granule membrane / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / VEGFR2 mediated vascular permeability / cellular response to iron ion / Endosomal/Vacuolar pathway / lumenal side of endoplasmic reticulum membrane / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / peptide antigen assembly with MHC class II protein complex / cellular response to iron(III) ion / MHC class II protein complex / negative regulation of forebrain neuron differentiation / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / molecular condensate scaffold activity / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of iron ion transport / regulation of erythrocyte differentiation / HFE-transferrin receptor complex / response to molecule of bacterial origin / MHC class I peptide loading complex / NOD1/2 Signaling Pathway / TAK1-dependent IKK and NF-kappa-B activation / defense response / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / DDX58/IFIH1-mediated induction of interferon-alpha/beta / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / MHC class I protein complex / positive regulation of T cell activation / peptide antigen binding / positive regulation of receptor-mediated endocytosis / negative regulation of neurogenesis / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / multicellular organismal-level iron ion homeostasis / RNA stem-loop binding / specific granule lumen / Interleukin-1 signaling / phagocytic vesicle membrane / recycling endosome membrane / Interferon gamma signaling / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / Interferon alpha/beta signaling / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / viral capsid / positive regulation of cellular senescence / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / PIP3 activates AKT signaling / negative regulation of neuron projection development / protein-folding chaperone binding / ER-Phagosome pathway / protein refolding / viral nucleocapsid / Transcription of SARS-CoV-2 sgRNAs / host cell endoplasmic reticulum-Golgi intermediate compartment / early endosome membrane / protein homotetramerization / Translation of Structural Proteins / Virion Assembly and Release / host extracellular space / host cell Golgi apparatus / amyloid fibril formation / adaptive immune response / Induction of Cell-Cell Fusion / intracellular iron ion homeostasis / Attachment and Entry / learning or memory
Similarity search - Function
Nucleocapsid protein, betacoronavirus / Nucleocapsid protein, coronavirus / Nucleocapsid protein, C-terminal / Nucleocapsid protein, N-terminal / Nucleocapsid (N) protein, C-terminal domain, coronavirus / Nucleocapsid (N) protein, N-terminal domain, coronavirus / Coronavirus nucleocapsid / Coronavirus nucleocapsid (CoV N) protein N-terminal (NTD) domain profile. / Coronavirus nucleocapsid (CoV N) protein C-terminal (CTD) domain profile. / MHC class I, alpha chain, C-terminal ...Nucleocapsid protein, betacoronavirus / Nucleocapsid protein, coronavirus / Nucleocapsid protein, C-terminal / Nucleocapsid protein, N-terminal / Nucleocapsid (N) protein, C-terminal domain, coronavirus / Nucleocapsid (N) protein, N-terminal domain, coronavirus / Coronavirus nucleocapsid / Coronavirus nucleocapsid (CoV N) protein N-terminal (NTD) domain profile. / Coronavirus nucleocapsid (CoV N) protein C-terminal (CTD) domain profile. / MHC class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I alpha chain, alpha1 alpha2 domains / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
HLA class I histocompatibility antigen, B alpha chain / Nucleoprotein / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.04 Å
AuthorsYuan, P. / Wu, D.C.
Funding support China, 2items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32270995 China
National Natural Science Foundation of China (NSFC)32100985 China
CitationJournal: To Be Published
Title: Structural basis for recognition of SARS-CoV-2 conserved nucleocapside epitopes by dominant T cell receptors
Authors: Yuan, P. / Wu, D.C.
History
DepositionAug 10, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Aug 13, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: HLA class I histocompatibility antigen, B alpha chain
B: Beta-2-microglobulin
C: Nucleoprotein
D: SPR epitope specific TCR CLB1 ALPHA
E: SPR epitope specific TCR CLB1 BETA


Theoretical massNumber of molelcules
Total (without water)95,6225
Polymers95,6225
Non-polymers00
Water13,007722
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: surface plasmon resonance
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)58.105, 102.725, 160.147
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein HLA class I histocompatibility antigen, B alpha chain / Human leukocyte antigen B / HLA-B


Mass: 32093.211 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-B, HLAB / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P01889
#2: Protein Beta-2-microglobulin


Mass: 11879.356 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M, CDABP0092, HDCMA22P / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P61769

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SPR epitope specific TCR CLB1 ... , 2 types, 2 molecules DE

#4: Protein SPR epitope specific TCR CLB1 ALPHA


Mass: 22687.070 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli BL21(DE3) (bacteria)
#5: Protein SPR epitope specific TCR CLB1 BETA


Mass: 27666.945 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli BL21(DE3) (bacteria)

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Protein/peptide / Non-polymers , 2 types, 723 molecules C

#3: Protein/peptide Nucleoprotein / N / Nucleocapsid protein / NC / Protein N


Mass: 1295.464 Da / Num. of mol.: 1 / Source method: obtained synthetically
Source: (synth.) Severe acute respiratory syndrome coronavirus 2
References: UniProt: P0DTC9
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 722 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.55 Å3/Da / Density % sol: 51.69 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop
Details: 0.1 M ammonium citrate dibasic, and 20% (w/v) PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL02U1 / Wavelength: 0.9792 Å
DetectorType: DECTRIS EIGER2 S 9M / Detector: PIXEL / Date: Jun 9, 2024
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9792 Å / Relative weight: 1
ReflectionResolution: 2.04→48.9 Å / Num. obs: 61913 / % possible obs: 99.97 % / Redundancy: 10.7 % / CC1/2: 0.999 / Net I/σ(I): 16.2
Reflection shellResolution: 2.04→2.11 Å / Num. unique obs: 6115 / CC1/2: 0.782

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Processing

Software
NameVersionClassification
REFMAC5.8.0049refinement
XDSdata reduction
XDSdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.04→48.9 Å / Cor.coef. Fo:Fc: 0.952 / Cor.coef. Fo:Fc free: 0.924 / SU B: 4.723 / SU ML: 0.126 / Cross valid method: THROUGHOUT / ESU R: 0.193 / ESU R Free: 0.169 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.23157 3093 5 %RANDOM
Rwork0.18745 ---
obs0.18967 58820 99.9 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 32.044 Å2
Baniso -1Baniso -2Baniso -3
1-1.14 Å2-0 Å20 Å2
2--0.34 Å2-0 Å2
3----1.48 Å2
Refinement stepCycle: 1 / Resolution: 2.04→48.9 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6586 0 0 722 7308
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0170.0196765
X-RAY DIFFRACTIONr_bond_other_d0.0010.026091
X-RAY DIFFRACTIONr_angle_refined_deg1.7661.9359195
X-RAY DIFFRACTIONr_angle_other_deg0.866314012
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.0825811
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.20523.739353
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.596151087
X-RAY DIFFRACTIONr_dihedral_angle_4_deg21.1141554
X-RAY DIFFRACTIONr_chiral_restr0.1150.2961
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.0217774
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021668
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it2.7972.9293262
X-RAY DIFFRACTIONr_mcbond_other2.7972.9293261
X-RAY DIFFRACTIONr_mcangle_it4.0414.3754067
X-RAY DIFFRACTIONr_mcangle_other4.044.3764068
X-RAY DIFFRACTIONr_scbond_it3.6073.3363503
X-RAY DIFFRACTIONr_scbond_other3.6063.3373504
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other5.6284.8365129
X-RAY DIFFRACTIONr_long_range_B_refined8.26925.0038156
X-RAY DIFFRACTIONr_long_range_B_other8.03224.4057785
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.04→2.093 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.245 220 -
Rwork0.255 4319 -
obs--99.93 %

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