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- PDB-7dzn: Crystal Structure of the cross-restricted T18A TCR and HLAB4201 b... -

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Basic information

Entry
Database: PDB / ID: 7dzn
TitleCrystal Structure of the cross-restricted T18A TCR and HLAB4201 bound to HIV-1 Gag TL9 peptide
Components
  • Beta-2-microglobulin
  • Gag-Pol polyprotein
  • MHC class I antigen
  • alpha chain T18A TCR
  • beta chain T18A TCR
KeywordsIMMUNE SYSTEM / TCR and p-MHC complex / HIV epitope TL9
Function / homology
Function and homology information


antigen processing and presentation / : / : / 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 / : / : / 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 / HIV-1 retropepsin / peptide antigen assembly with MHC class II protein complex / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / cellular response to iron(III) ion / exoribonuclease H / 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 / exoribonuclease H activity / 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 / host multivesicular body / 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 / DNA integration / 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 / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / telomerase activity / specific granule lumen / viral penetration into host nucleus / RNA stem-loop binding / 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 / RNA-DNA hybrid ribonuclease activity / MHC class II protein complex binding / Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases / positive regulation of protein binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / host cell / negative regulation of neuron projection development / iron ion transport / T cell differentiation in thymus / ER-Phagosome pathway / protein refolding / viral nucleocapsid / early endosome membrane / DNA recombination / protein homotetramerization / amyloid fibril formation / DNA-directed DNA polymerase / aspartic-type endopeptidase activity / intracellular iron ion homeostasis / Hydrolases; Acting on ester bonds / DNA-directed DNA polymerase activity / learning or memory / immune response / symbiont-mediated suppression of host gene expression / Amyloid fiber formation / endoplasmic reticulum lumen / symbiont entry into host cell / viral translational frameshifting / Golgi membrane / external side of plasma membrane / lysosomal membrane / focal adhesion / lipid binding / Neutrophil degranulation / host cell nucleus / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / structural molecule activity
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 / Reverse transcriptase connection / Reverse transcriptase connection domain / Beta-2-Microglobulin / : ...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 / Reverse transcriptase connection / Reverse transcriptase connection domain / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral / Integrase, N-terminal zinc-binding domain / Integrase, C-terminal, retroviral / Integrase DNA binding domain profile. / Immunodeficiency lentiviral matrix, N-terminal / gag gene protein p17 (matrix protein) / RNase H / Integrase core domain / Integrase, catalytic core / Integrase catalytic domain profile. / Retropepsin-like catalytic domain / MHC classes I/II-like antigen recognition protein / Matrix protein, lentiviral and alpha-retroviral, N-terminal / Retroviral nucleocapsid Gag protein p24, C-terminal domain / Gag protein p24 C-terminal domain / RNase H type-1 domain profile. / Ribonuclease H domain / : / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Reverse transcriptase domain / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase (RT) catalytic domain profile. / Retrovirus capsid, C-terminal / Retroviral matrix protein / Retrovirus capsid, N-terminal / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Zinc finger, CCHC-type / Zinc finger CCHC-type profile. / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Aspartic peptidase domain superfamily / Ribonuclease H superfamily / Ribonuclease H-like superfamily / Reverse transcriptase/Diguanylate cyclase domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / DNA/RNA polymerase superfamily / Immunoglobulins / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Gag-Pol polyprotein / Beta-2-microglobulin / MHC class I antigen
Similarity search - Component
Biological speciesHomo sapiens (human)
Human immunodeficiency virus 1
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.63 Å
AuthorsLiu, Y. / Yin, L.
Funding support China, 2items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31870728 China
National Natural Science Foundation of China (NSFC)31470738 China
CitationJournal: Biorxiv / Year: 2021
Title: Cross-reactive TCR with alloreactivity for immunodominant HIV-1 epitope Gag TL9 with enhanced control of viral infection
Authors: Liu, Y. / San, D. / Yin, L.
History
DepositionJan 25, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 26, 2022Provider: repository / Type: Initial release
Revision 1.1Nov 29, 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 1.2Nov 20, 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
A: MHC class I antigen
B: Beta-2-microglobulin
C: Gag-Pol polyprotein
D: beta chain T18A TCR
E: alpha chain T18A TCR


Theoretical massNumber of molelcules
Total (without water)95,3535
Polymers95,3535
Non-polymers00
Water2,090116
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: native gel electrophoresis
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area10080 Å2
ΔGint-53 kcal/mol
Surface area38760 Å2
Unit cell
Length a, b, c (Å)96.992, 96.992, 263.839
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number96
Space group name H-MP43212
Space group name HallP4nw2abw
Symmetry operation#1: x,y,z
#2: -y+1/2,x+1/2,z+3/4
#3: y+1/2,-x+1/2,z+1/4
#4: x+1/2,-y+1/2,-z+1/4
#5: -x+1/2,y+1/2,-z+3/4
#6: -x,-y,z+1/2
#7: y,x,-z
#8: -y,-x,-z+1/2

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Components

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Protein , 4 types, 4 molecules ABDE

#1: Protein MHC class I antigen


Mass: 32205.299 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-B / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: V6E0U6
#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) / Strain (production host): BL21(DE3) / References: UniProt: P61769
#4: Protein beta chain T18A TCR


Mass: 27566.848 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) / Strain (production host): BL21(DE3)
#5: Protein alpha chain T18A TCR


Mass: 22669.275 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) / Strain (production host): BL21(DE3)

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Protein/peptide / Non-polymers , 2 types, 117 molecules C

#3: Protein/peptide Gag-Pol polyprotein


Mass: 1032.168 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P03367
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 116 / 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: 3.25 Å3/Da / Density % sol: 62.2 %
Crystal growTemperature: 298.15 K / Method: vapor diffusion, sitting drop / Details: 0.1 M SPG pH 7.0, 25 % w/v PEG 1500

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Data collection

DiffractionMean temperature: 95 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL19U1 / Wavelength: 0.979 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Nov 1, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.6279→47.7 Å / Num. obs: 38478 / % possible obs: 100 % / Redundancy: 6.5 % / Biso Wilson estimate: 48.47 Å2 / CC1/2: 0.999 / Rmerge(I) obs: 0.03554 / Net I/σ(I): 14.76
Reflection shellResolution: 2.628→2.722 Å / Rmerge(I) obs: 0.2992 / Num. unique obs: 3733 / CC1/2: 0.919

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Processing

Software
NameVersionClassification
PHENIX1.19.2_4158refinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4u1j, 4GG6, 4UDT

4u1j

4gg6

4udt


Resolution: 2.63→47.7 Å / SU ML: 0.3664 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 29.07
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2607 1998 5.2 %
Rwork0.2074 36427 -
obs0.2102 38425 99.83 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 58.14 Å2
Refinement stepCycle: LAST / Resolution: 2.63→47.7 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6658 0 0 116 6774
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00326869
X-RAY DIFFRACTIONf_angle_d0.67519347
X-RAY DIFFRACTIONf_chiral_restr0.0456984
X-RAY DIFFRACTIONf_plane_restr0.00531239
X-RAY DIFFRACTIONf_dihedral_angle_d5.4807925
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.63-2.690.41331380.29962531X-RAY DIFFRACTION99.55
2.69-2.770.31791390.2712531X-RAY DIFFRACTION99.52
2.77-2.850.37321400.30332560X-RAY DIFFRACTION99.59
2.85-2.940.35791400.28952555X-RAY DIFFRACTION99.78
2.94-3.040.31871410.2632548X-RAY DIFFRACTION99.63
3.04-3.170.31911400.24192558X-RAY DIFFRACTION99.74
3.17-3.310.29381410.23422575X-RAY DIFFRACTION99.96
3.31-3.490.28011430.24992586X-RAY DIFFRACTION99.96
3.49-3.70.28771410.22542587X-RAY DIFFRACTION99.96
3.7-3.990.2681420.19462591X-RAY DIFFRACTION99.93
3.99-4.390.20171450.16852633X-RAY DIFFRACTION100
4.39-5.030.20241440.15482633X-RAY DIFFRACTION100
5.03-6.330.23481480.17872684X-RAY DIFFRACTION99.96
6.33-47.70.21021560.17452855X-RAY DIFFRACTION99.93
Refinement TLS params.Method: refined / Origin x: 45.679334581 Å / Origin y: 4.71054695319 Å / Origin z: 4.8316686871 Å
111213212223313233
T0.273228816232 Å20.0108738345173 Å2-0.0180010957027 Å2-0.300430116384 Å2-0.0270804422156 Å2--0.346238039294 Å2
L0.109459472236 °2-0.0698198543661 °2-0.0466148614892 °2-0.285249018096 °20.351650510997 °2--0.914695420865 °2
S-0.00737390655074 Å °-0.042887632607 Å °-0.00255384403831 Å °0.0202133267239 Å °0.0585480737067 Å °-0.0367972273152 Å °0.0409651733973 Å °0.0880588523202 Å °-4.27145958962E-6 Å °
Refinement TLS groupSelection details: all

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