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- PDB-7um2: SARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL... -

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Basic information

Entry
Database: PDB / ID: 7um2
TitleSARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL) presented by HLA-A*02:01
Components
  • Beta-2-microglobulin
  • HLA class I antigen
  • SARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL)
KeywordsIMMUNE SYSTEM / human leukocyte antigen / major histocompatibility complex / HLA-A2 / HLA-A*02:01 / SARS-CoV-2 / Spike
Function / homology
Function and homology information


antigen processing and presentation / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway ...antigen processing and presentation / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / lumenal side of endoplasmic reticulum membrane / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / negative regulation of forebrain neuron differentiation / regulation of erythrocyte differentiation / peptide antigen assembly with MHC class I protein complex / ER to Golgi transport vesicle membrane / regulation of iron ion transport / response to molecule of bacterial origin / MHC class I peptide loading complex / HFE-transferrin receptor complex / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / MHC class I protein complex / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / peptide antigen assembly with MHC class II protein complex / multicellular organismal-level iron ion homeostasis / MHC class II protein complex / cellular response to nicotine / specific granule lumen / positive regulation of cellular senescence / positive regulation of T cell mediated cytotoxicity / recycling endosome membrane / phagocytic vesicle membrane / peptide antigen binding / antigen processing and presentation of exogenous peptide antigen via MHC class II / negative regulation of epithelial cell proliferation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of immune response / Interferon gamma signaling / Modulation by Mtb of host immune system / positive regulation of T cell activation / sensory perception of smell / negative regulation of neuron projection development / positive regulation of protein binding / tertiary granule lumen / DAP12 signaling / MHC class II protein complex binding / late endosome membrane / iron ion transport / ER-Phagosome pathway / T cell differentiation in thymus / early endosome membrane / protein refolding / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / lysosomal membrane / Golgi membrane / external side of plasma membrane / focal adhesion / Neutrophil degranulation / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / Golgi apparatus / cell surface / endoplasmic reticulum / protein homodimerization activity / extracellular space / extracellular exosome / extracellular region / identical protein binding / membrane / metal ion binding / plasma membrane / cytosol
Similarity search - Function
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 / : ...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
: / Beta-2-microglobulin / HLA class I antigen
Similarity search - Component
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 1.63 Å
AuthorsSzeto, C. / Gras, S.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: To Be Published
Title: SARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL) presented by HLA-A*02:01
Authors: Szeto, C. / Gras, S.
History
DepositionApr 6, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 26, 2023Provider: repository / Type: Initial release
Revision 1.1Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: HLA class I antigen
B: Beta-2-microglobulin
C: SARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,1566
Polymers53,9553
Non-polymers2013
Water5,152286
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4430 Å2
ΔGint-53 kcal/mol
Surface area19230 Å2
MethodPISA
Unit cell
Length a, b, c (Å)60.171, 79.105, 110.860
Angle α, β, γ (deg.)90.000, 90.000, 90.000
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 antigen / HLA class I histocompatibility antigen / HLA class I histocompatibility antigen A alpha chain / A ...HLA class I histocompatibility antigen / HLA class I histocompatibility antigen A alpha chain / A alpha chain / MHC class I antigen / MHC class I protein / MHC class I protein (HLA-A)


Mass: 40974.797 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A, HLA
Production host: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
References: UniProt: Q53Z42
#2: Protein Beta-2-microglobulin


Mass: 11879.356 Da / Num. of mol.: 1 / 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-Gold(DE3)pLysS AG' (bacteria)
References: UniProt: P61769

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Protein/peptide , 1 types, 1 molecules C

#3: Protein/peptide SARS-CoV-2 Spike-derived peptide S417-425 K417T mutant (TIADYNYKL)


Mass: 1101.230 Da / Num. of mol.: 1 / Source method: obtained synthetically
Source: (synth.) Severe acute respiratory syndrome coronavirus 2

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Non-polymers , 4 types, 289 molecules

#4: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#5: Chemical ChemComp-CD / CADMIUM ION


Mass: 112.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cd
#6: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 286 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN

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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: 2.44 Å3/Da / Density % sol: 49.69 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / Details: 14% P3350; 0.1M NaFlu; 2% EG; 1 mM CdCl2

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.953659 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Sep 22, 2021
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.953659 Å / Relative weight: 1
ReflectionResolution: 1.63→47.89 Å / Num. obs: 66786 / % possible obs: 100 % / Redundancy: 7.5 % / Biso Wilson estimate: 26.89 Å2 / CC1/2: 0.999 / Rmerge(I) obs: 0.067 / Rpim(I) all: 0.026 / Rrim(I) all: 0.072 / Net I/σ(I): 15.7 / Num. measured all: 498337 / Scaling rejects: 2
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Rpim(I) allRrim(I) allNet I/σ(I) obs% possible all
1.63-1.667.31.222456233750.6680.4791.3131.5100
8.78-47.8960.02930044980.9990.0120.03149.398

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Phasing

PhasingMethod: molecular replacement
Phasing MRModel details: Phaser MODE: MR_AUTO
Highest resolutionLowest resolution
Rotation6.25 Å45.39 Å
Translation6.25 Å45.39 Å

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Processing

Software
NameVersionClassification
BUSTER2.10.3refinement
Aimlessdata scaling
PHASER2.8.3phasing
PDB_EXTRACT3.27data extraction
XDSdata reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1OGA

1oga


Resolution: 1.63→23.81 Å / Cor.coef. Fo:Fc: 0.96 / Cor.coef. Fo:Fc free: 0.958 / SU R Cruickshank DPI: 0.075 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.078 / SU Rfree Blow DPI: 0.074 / SU Rfree Cruickshank DPI: 0.073
RfactorNum. reflection% reflectionSelection details
Rfree0.195 3347 5.02 %RANDOM
Rwork0.179 ---
obs0.18 66688 100 %-
Displacement parametersBiso max: 110.62 Å2 / Biso mean: 30.37 Å2 / Biso min: 14.32 Å2
Baniso -1Baniso -2Baniso -3
1-5.0733 Å20 Å20 Å2
2---2.3207 Å20 Å2
3----2.7526 Å2
Refine analyzeLuzzati coordinate error obs: 0.21 Å
Refinement stepCycle: final / Resolution: 1.63→23.81 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3169 0 3 286 3458
Biso mean--47.33 36.88 -
Num. residues----385
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d1165SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes586HARMONIC5
X-RAY DIFFRACTIONt_it3338HARMONIC20
X-RAY DIFFRACTIONt_nbd0SEMIHARMONIC5
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion412SEMIHARMONIC5
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_contact4001SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d3338HARMONIC20.01
X-RAY DIFFRACTIONt_angle_deg4546HARMONIC21.01
X-RAY DIFFRACTIONt_omega_torsion3.78
X-RAY DIFFRACTIONt_other_torsion17.39
LS refinement shellResolution: 1.63→1.64 Å / Rfactor Rfree error: 0 / Total num. of bins used: 50
RfactorNum. reflection% reflection
Rfree0.3308 57 4.27 %
Rwork0.2285 1277 -
all0.2322 1334 -
obs--99.92 %

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