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- PDB-7r80: Crystal structure of C3 TCR complex with QW9-bound HLA-B*5301 -

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Basic information

Entry
Database: PDB / ID: 7r80
TitleCrystal structure of C3 TCR complex with QW9-bound HLA-B*5301
Components
  • Alpha chain of C3 TCR
  • Beta Chain of C3 TCR
  • Beta-2-microglobulin
  • GLN-ALA-SER-GLN-GLU-VAL-LYS-ASN-TRP
  • MHC class I antigen
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / MHC / T Cell Immunity / Antigen Presentation / HIV / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


antigen processing and presentation of peptide antigen via MHC class I / : / : / 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 / lumenal side of endoplasmic reticulum membrane ...antigen processing and presentation of peptide antigen via MHC class I / : / : / 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 / lumenal side of endoplasmic reticulum membrane / Endosomal/Vacuolar pathway / 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 / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / MHC class II protein complex / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / regulation of iron ion transport / MHC class I peptide loading complex / response to molecule of bacterial origin / HFE-transferrin receptor complex / T cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / antigen processing and presentation of exogenous peptide antigen via MHC class II / MHC class I protein complex / positive regulation of immune response / peptide antigen binding / negative regulation of neurogenesis / positive regulation of T cell mediated cytotoxicity / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of T cell activation / cellular response to nicotine / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / Interferon gamma signaling / MHC class II protein complex binding / positive regulation of protein binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / negative regulation of neuron projection development / iron ion transport / T cell differentiation in thymus / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / Golgi membrane / external side of plasma membrane / lysosomal membrane / focal adhesion / Neutrophil degranulation / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / cell surface / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / extracellular space / extracellular exosome / extracellular region / identical protein binding / membrane / plasma membrane / cytosol
Similarity search - Function
MHC class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / 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 class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / 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 / Immunoglobulins / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Beta-2-microglobulin / MHC class I antigen
Similarity search - Component
Biological speciesHomo sapiens (human)
HIV-1 06TG.HT008 (virus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å
AuthorsLi, X.L. / Tan, K.M. / Walker, B.D. / Wang, J.H.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)P01 HL103526; R01 AI149704; 5UM1Al144462; P30 AI060354 United States
CitationJournal: Nat Commun / Year: 2023
Title: Molecular basis of differential HLA class I-restricted T cell recognition of a highly networked HIV peptide.
Authors: Li, X. / Singh, N.K. / Collins, D.R. / Ng, R. / Zhang, A. / Lamothe-Molina, P.A. / Shahinian, P. / Xu, S. / Tan, K. / Piechocka-Trocha, A. / Urbach, J.M. / Weber, J.K. / Gaiha, G.D. / Takou ...Authors: Li, X. / Singh, N.K. / Collins, D.R. / Ng, R. / Zhang, A. / Lamothe-Molina, P.A. / Shahinian, P. / Xu, S. / Tan, K. / Piechocka-Trocha, A. / Urbach, J.M. / Weber, J.K. / Gaiha, G.D. / Takou Mbah, O.C. / Huynh, T. / Cheever, S. / Chen, J. / Birnbaum, M. / Zhou, R. / Walker, B.D. / Wang, J.H.
History
DepositionJun 25, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 29, 2022Provider: repository / Type: Initial release
Revision 1.1Jun 7, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.3Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
C: MHC class I antigen
D: Beta-2-microglobulin
E: GLN-ALA-SER-GLN-GLU-VAL-LYS-ASN-TRP
A: Alpha chain of C3 TCR
B: Beta Chain of C3 TCR


Theoretical massNumber of molelcules
Total (without water)95,2485
Polymers95,2485
Non-polymers00
Water2,666148
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: surface plasmon resonance
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area10390 Å2
ΔGint-51 kcal/mol
Surface area38520 Å2
Unit cell
Length a, b, c (Å)60.310, 64.814, 220.885
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 , 4 types, 4 molecules CDAB

#1: Protein MHC class I antigen / MHC class I protein / HLA-B*5301 Heavy Chain


Mass: 32256.641 Da / Num. of mol.: 1 / Fragment: UNP residues 25-300
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-B / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: S6BVK3
#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(DE3) (bacteria) / References: UniProt: P61769
#4: Protein Alpha chain of C3 TCR


Mass: 22561.863 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 Beta Chain of C3 TCR


Mass: 27459.508 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, 149 molecules E

#3: Protein/peptide GLN-ALA-SER-GLN-GLU-VAL-LYS-ASN-TRP


Mass: 1090.165 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) HIV-1 06TG.HT008 (virus)
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 148 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.27 Å3/Da / Density % sol: 45.73 %
Crystal growTemperature: 290 K / Method: vapor diffusion, sitting drop / Details: 0.1 M Tris, pH 8.5, 21-23% PEG3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 19-ID / Wavelength: 0.979 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Sep 18, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.9→50 Å / Num. obs: 17500 / % possible obs: 90.2 % / Redundancy: 4.4 % / Biso Wilson estimate: 75.63 Å2 / Rmerge(I) obs: 0.186 / Rpim(I) all: 0.097 / Rrim(I) all: 0.211 / Χ2: 1.692 / Net I/σ(I): 5.9
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsCC1/2Rpim(I) allRrim(I) allΧ2% possible all
2.95-341.5368550.3750.8411.7650.71593.3
3-3.064.21.3948740.5260.7311.5860.72889.2
3.06-3.114.51.3718380.4950.6891.5450.74990.4
3.11-3.184.31.1448860.5950.5731.2880.74792.3
3.18-3.254.50.9728520.5840.4881.0950.77790.1
3.25-3.324.40.858800.7310.4250.9570.89793.2
3.32-3.414.50.6288860.8170.3150.7080.94689.5
3.41-3.54.50.5238570.8690.2630.591.00393.9
3.5-3.64.40.3668830.9320.1880.4141.16490.8
3.6-3.724.10.3168710.890.1750.3641.45691.9
3.72-3.8540.2918760.9120.1570.3331.58889.9
3.85-44.80.2548640.9520.130.2871.61290.5
4-4.194.70.2088770.9610.1030.2331.85591.9
4.19-4.414.70.1558950.9790.0790.1752.14590.9
4.41-4.684.60.1328710.9840.0690.152.58889.4
4.68-5.044.60.1198770.9830.0630.1352.63390
5.04-5.5540.1148820.9830.0630.1312.68489
5.55-6.354.60.1148720.9810.0580.1292.44388
6.35-84.60.0958810.9890.0490.1083.07686.8
8-503.60.0739230.990.0430.0864.13184.2

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Processing

Software
NameVersionClassification
PHENIX1.19_4080refinement
HKL-3000data scaling
PDB_EXTRACT3.27data extraction
HKL-3000data reduction
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entries 1A1M & 1OGA

1a1m

1oga


Resolution: 2.9→46.66 Å / SU ML: 0.35 / Cross valid method: THROUGHOUT / σ(F): 1.33 / Phase error: 28.89 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2871 785 4.51 %
Rwork0.233 16629 -
obs0.2354 17414 87.39 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 276.26 Å2 / Biso mean: 94 Å2 / Biso min: 24.41 Å2
Refinement stepCycle: final / Resolution: 2.9→46.66 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6262 0 0 148 6410
Biso mean---70.95 -
Num. residues----826
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 6

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.9-3.080.33531000.29142329242974
3.08-3.320.36761390.28642838297792
3.32-3.660.27571470.23242842298991
3.66-4.190.29081310.22992858298991
4.19-5.270.25971360.19392851298790
5.27-46.660.2831320.24282911304387

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