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- PDB-7m8t: Crystal Structure of HLA-A*11:01 in complex with NSASFSTFK, an 9-... -

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Basic information

Entry
Database: PDB / ID: 7m8t
TitleCrystal Structure of HLA-A*11:01 in complex with NSASFSTFK, an 9-mer epitope from SARS-CoV-2 spike (S370-378)
Components
  • Beta-2-microglobulin
  • HLA class I histocompatibility antigen, A alpha chain
  • Spike protein S1 peptide
KeywordsIMMUNE SYSTEM / TCR / T cell / spike / immunology / epitope presentation
Function / homology
Function and homology information


antigen processing and presentation of peptide antigen via MHC class I / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / peptide antigen assembly with MHC class II protein complex ...antigen processing and presentation of peptide antigen via MHC class I / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / peptide antigen assembly with MHC class II protein complex / lumenal side of endoplasmic reticulum membrane / 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 / 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 / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / 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 / specific granule lumen / 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 / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / positive regulation of cellular senescence / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / negative regulation of neuron projection development / ER-Phagosome pathway / protein refolding / early endosome membrane / symbiont-mediated disruption of host tissue / protein homotetramerization / 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 / amyloid fibril formation / Induction of Cell-Cell Fusion / structural constituent of virion / intracellular iron ion homeostasis / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / learning or memory / 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 / endoplasmic reticulum lumen / Amyloid fiber formation / Golgi membrane / fusion of virus membrane with host plasma membrane / lysosomal membrane / external side of plasma membrane / focal adhesion / fusion of virus membrane with host endosome membrane / viral envelope / Neutrophil degranulation / 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 / structural molecule activity / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / extracellular space / extracellular exosome / extracellular region / identical protein binding
Similarity search - Function
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. ...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 / 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 / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
Spike glycoprotein / Beta-2-microglobulin / MHC class I antigen
Similarity search - Component
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.5 Å
AuthorsGras, S. / Nguyen, A.T. / Szeto, C.
Funding support Australia, 1items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)1159272 Australia
CitationJournal: Biophysica / Year: 2021
Title: SARS-CoV-2 Spike-Derived Peptides Presented by HLA Molecules
Authors: Nguyen, A.T. / Szeto, C. / Jayasinghe, D. / Lobos, C.A. / Halim, H. / Chatzileontiadou, D.S.M. / Grant, E.J. / Gras, S.
History
DepositionMar 30, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 23, 2021Provider: repository / Type: Initial release
Revision 1.1Oct 18, 2023Group: Advisory / Data collection ...Advisory / Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / database_2 / pdbx_initial_refinement_model / pdbx_unobs_or_zero_occ_atoms
Item: _citation.country / _citation.journal_id_ISSN ..._citation.country / _citation.journal_id_ISSN / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: HLA class I histocompatibility antigen, A alpha chain
B: Beta-2-microglobulin
C: Spike protein S1 peptide
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,36511
Polymers44,9243
Non-polymers4418
Water8,053447
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5390 Å2
ΔGint-69 kcal/mol
Surface area19450 Å2
MethodPISA
Unit cell
Length a, b, c (Å)49.873, 38.451, 110.059
Angle α, β, γ (deg.)90.000, 94.630, 90.000
Int Tables number4
Space group name H-MP1211

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein HLA class I histocompatibility antigen, A alpha chain


Mass: 32055.285 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A / Plasmid: pET / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: U5YJK1
#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 / Plasmid: pET / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P61769

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Protein/peptide , 1 types, 1 molecules C

#3: Protein/peptide Spike protein S1 peptide


Mass: 989.060 Da / Num. of mol.: 1 / Fragment: UNP residues 370-378 / Source method: obtained synthetically / Details: spike
Source: (synth.) Severe acute respiratory syndrome coronavirus 2
References: UniProt: P0DTC2

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Non-polymers , 6 types, 455 molecules

#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#5: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#6: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Na
#7: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#8: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 447 / 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: 2.34 Å3/Da / Density % sol: 47.47 %
Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop / pH: 6.5
Details: 2M Ammonium Sulfate, 0.1M Calcium cacodylate pH 6.5, 0.2M sodium chloride

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.98 Å
DetectorType: DECTRIS PILATUS 12M / Detector: PIXEL / Date: May 6, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 1.5→46.72 Å / Num. obs: 67146 / % possible obs: 100 % / Redundancy: 6.8 % / Biso Wilson estimate: 20.44 Å2 / CC1/2: 0.999 / Rmerge(I) obs: 0.071 / Net I/σ(I): 13.8 / Num. measured all: 458019 / Scaling rejects: 1
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Net I/σ(I) obs% possible all
1.5-1.5371.0582298032900.7541.8100
8.22-46.726.20.03627904530.99944.198.7

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Processing

Software
NameVersionClassification
BUSTERrefinement
Aimless0.5.1data scaling
PDB_EXTRACT3.27data extraction
Cootmodel building
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5WJN

5wjn


Resolution: 1.5→38.41 Å / Cor.coef. Fo:Fc: 0.936 / Cor.coef. Fo:Fc free: 0.926 / SU R Cruickshank DPI: 0.075 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.079 / SU Rfree Blow DPI: 0.08 / SU Rfree Cruickshank DPI: 0.077
RfactorNum. reflection% reflectionSelection details
Rfree0.2186 3406 5.07 %RANDOM
Rwork0.1879 ---
obs0.1894 67130 100 %-
Displacement parametersBiso max: 106.4 Å2 / Biso mean: 24.56 Å2 / Biso min: 11.66 Å2
Baniso -1Baniso -2Baniso -3
1--8.7172 Å20 Å24.0711 Å2
2--5.0657 Å20 Å2
3---3.6515 Å2
Refine analyzeLuzzati coordinate error obs: 0.2 Å
Refinement stepCycle: final / Resolution: 1.5→38.41 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3160 0 21 447 3628
Biso mean--62.6 34.02 -
Num. residues----385
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d1180SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes588HARMONIC5
X-RAY DIFFRACTIONt_it3357HARMONIC10
X-RAY DIFFRACTIONt_nbd
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion417SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact3295SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d3357HARMONIC20.008
X-RAY DIFFRACTIONt_angle_deg4567HARMONIC20.95
X-RAY DIFFRACTIONt_omega_torsion3.97
X-RAY DIFFRACTIONt_other_torsion14.59
LS refinement shellResolution: 1.5→1.51 Å / Rfactor Rfree error: 0 / Total num. of bins used: 51
RfactorNum. reflection% reflection
Rfree0.2421 70 5.21 %
Rwork0.2064 1273 -
all0.2081 1343 -
obs--100 %

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