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- PDB-7n1a: SARS-CoV-2 YLQ peptide binds to HLA-A2 -

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Basic information

Entry
Database: PDB / ID: 7n1a
TitleSARS-CoV-2 YLQ peptide binds to HLA-A2
Components
  • Beta-2-microglobulin
  • MHC class I antigen, A-2 alpha chain
  • Spike protein S1
KeywordsIMMUNE SYSTEM / pMHC / SARS-CoV-2 / SPIKE / YLQ
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 / lumenal side of endoplasmic reticulum membrane / Antigen Presentation: Folding, assembly and peptide loading of class I MHC ...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 / 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 / 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 / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / amyloid fibril formation / Induction of Cell-Cell Fusion / structural constituent of virion / intracellular iron ion homeostasis / entry receptor-mediated virion attachment to host cell / membrane fusion / 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 / lysosomal membrane / fusion of virus membrane with host plasma 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
MHC class I antigen / Spike glycoprotein / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.065 Å
AuthorsWu, D. / Mariuzza, R.A.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI129893 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM126299 United States
Citation
Journal: Nat Commun / Year: 2022
Title: Structural assessment of HLA-A2-restricted SARS-CoV-2 spike epitopes recognized by public and private T-cell receptors.
Authors: Wu, D. / Kolesnikov, A. / Yin, R. / Guest, J.D. / Gowthaman, R. / Shmelev, A. / Serdyuk, Y. / Dianov, D.V. / Efimov, G.A. / Pierce, B.G. / Mariuzza, R.A.
#1: Journal: Biorxiv / Year: 2021
Title: Structural basis for recognition of two HLA-A2-restricted SARS-CoV-2 spike epitopes by public and private T cell receptors
Authors: Wu, D. / Kolesnikov, A. / Yin, R. / Guest, J.D. / Gowthaman, R. / Shmelev, A. / Serdyuk, Y. / Efimov, G.A. / Pierce, B.G. / Mariuzza, R.A.
History
DepositionMay 27, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 28, 2021Provider: repository / Type: Initial release
Revision 1.1Aug 18, 2021Group: Database references / Category: citation / citation_author / database_2
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.pdbx_database_id_DOI / _citation.title / _citation.year / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Feb 2, 2022Group: Database references / Category: citation / citation_author
Revision 1.3Oct 18, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / pdbx_initial_refinement_model
Item: _citation.journal_id_ISSN
Revision 1.4Nov 20, 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

Downloads & links

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Assembly

Deposited unit
A: MHC class I antigen, A-2 alpha chain
B: Beta-2-microglobulin
C: Spike protein S1
D: MHC class I antigen, A-2 alpha chain
E: Beta-2-microglobulin
F: Spike protein S1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)90,4218
Polymers90,0326
Non-polymers3882
Water8,683482
1
A: MHC class I antigen, A-2 alpha chain
B: Beta-2-microglobulin
C: Spike protein S1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,2104
Polymers45,0163
Non-polymers1941
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4800 Å2
ΔGint-14 kcal/mol
Surface area19170 Å2
MethodPISA
2
D: MHC class I antigen, A-2 alpha chain
E: Beta-2-microglobulin
F: Spike protein S1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,2104
Polymers45,0163
Non-polymers1941
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4320 Å2
ΔGint-19 kcal/mol
Surface area18800 Å2
MethodPISA
Unit cell
Length a, b, c (Å)85.069, 85.069, 214.213
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number153
Space group name H-MP3212
Components on special symmetry positions
IDModelComponents
11B-185-

HOH

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Components

#1: Protein MHC class I antigen, A-2 alpha chain


Mass: 31985.398 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: A0A5B8RNS7
#2: Protein Beta-2-microglobulin


Mass: 11879.356 Da / Num. of mol.: 2 / Fragment: UNP residues 21-119
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
#3: Protein/peptide Spike protein S1


Mass: 1151.377 Da / Num. of mol.: 2 / Fragment: epitope YLQPRTFLL (UNP residues 269-277) / Source method: obtained synthetically
Source: (synth.) Severe acute respiratory syndrome coronavirus 2
References: UniProt: P0DTC2
#4: Chemical ChemComp-PG4 / TETRAETHYLENE GLYCOL


Mass: 194.226 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H18O5 / Feature type: SUBJECT OF INVESTIGATION / Comment: precipitant*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 482 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
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: 2.49 Å3/Da / Density % sol: 50.58 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 0.2M Potassium thiocyanate (pH 7.0), 22% (w/v) PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-D / Wavelength: 1 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Mar 14, 2021
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.065→43.318 Å / Num. obs: 558646 / % possible obs: 100 % / Redundancy: 10.2 % / CC1/2: 0.991 / Rmerge(I) obs: 0.141 / Net I/σ(I): 17.8
Reflection shellResolution: 2.065→2.14 Å / Num. unique obs: 56058 / CC1/2: 0.958

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Processing

Software
NameVersionClassification
PHENIX1.16_3549refinement
PDB_EXTRACT3.27data extraction
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6VR5

6vr5


Resolution: 2.065→43.318 Å / SU ML: 0.22 / Cross valid method: THROUGHOUT / σ(F): 1.4 / Phase error: 24.73 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2407 2682 4.89 %
Rwork0.1968 52197 -
obs0.199 54879 99.97 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 87.03 Å2 / Biso mean: 35.4111 Å2 / Biso min: 14.04 Å2
Refinement stepCycle: final / Resolution: 2.065→43.318 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6289 0 26 482 6797
Biso mean--37.27 37.95 -
Num. residues----766
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / % reflection obs: 100 %

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork
2.065-2.10260.28841140.22422747
2.1026-2.1430.28231810.22582696
2.143-2.18670.26911280.22292742
2.1867-2.23430.26551260.2112754
2.2343-2.28630.27221340.20892683
2.2863-2.34340.28271340.22152740
2.3434-2.40680.30011360.2232744
2.4068-2.47760.27381360.21792719
2.4776-2.55760.31571390.22572760
2.5576-2.6490.29551090.2272766
2.649-2.7550.28861420.23232706
2.755-2.88040.26271380.22342754
2.8804-3.03220.2751680.21342727
3.0322-3.22210.23961480.21122731
3.2221-3.47080.23471480.19842739
3.4708-3.81990.20621210.17652791
3.8199-4.37220.20391560.16892758
4.3722-5.50670.19271650.16082777
5.5067-43.30.2251590.18082863

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