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- PDB-2v2x: T cell cross-reactivity and conformational changes during TCR eng... -

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Basic information

Entry
Database: PDB / ID: 2v2x
TitleT cell cross-reactivity and conformational changes during TCR engagement.
Components
  • BETA-2 MICROGLOBULIN
  • HIV P17
  • HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
KeywordsIMMUNE SYSTEM / TRANSMEMBRANE / UBL CONJUGATION / IMMUNE RESPONSE / DISEASE MUTATION / MHC TCR HLA-A2 HIV / IMMUNOGLOBULIN DOMAIN / HOST-VIRUS INTERACTION / MHC I / MEMBRANE / POLYMORPHISM / GLYCOPROTEIN / PYRROLIDONE CARBOXYLIC ACID
Function / homology
Function and homology information


positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / TAP complex binding / Golgi medial cisterna / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / CD8 receptor binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / beta-2-microglobulin binding ...positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / TAP complex binding / Golgi medial cisterna / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / CD8 receptor binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / beta-2-microglobulin binding / endoplasmic reticulum exit site / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent / TAP binding / protection from natural killer cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / detection of bacterium / T cell receptor binding / : / : / negative regulation of receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / 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 / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / cellular response to iron(III) ion / 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 / response to molecule of bacterial origin / MHC class I peptide loading complex / 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 / 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 / positive regulation of T cell mediated cytotoxicity / cellular response to nicotine / multicellular organismal-level iron ion homeostasis / positive regulation of protein binding / specific granule lumen / positive regulation of type II interferon production / phagocytic vesicle membrane / recycling endosome membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / Modulation by Mtb of host immune system / Interferon alpha/beta signaling / late endosome membrane / sensory perception of smell / antibacterial humoral response / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / E3 ubiquitin ligases ubiquitinate target proteins / T cell receptor signaling pathway / negative regulation of neuron projection development / iron ion transport / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / defense response to Gram-positive bacterium / immune response / endoplasmic reticulum lumen / Amyloid fiber formation / external side of plasma membrane / Golgi membrane / signaling receptor binding / lysosomal membrane / innate immune response / focal adhesion / Neutrophil degranulation / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / cell surface / endoplasmic reticulum / Golgi apparatus
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
HLA class I histocompatibility antigen, A alpha chain / HLA class I histocompatibility antigen, A alpha chain / Beta-2-microglobulin
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
HUMAN IMMUNODEFICIENCY VIRUS
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.6 Å
AuthorsLee, J.K. / Stewart-Jones, G. / Dong, T. / harlos, K. / Di Gleria, K. / Dorrell, L. / Douek, D.C. / van der Merwe, P.A. / Jones, E.Y. / McMichael, A.J.
CitationJournal: J.Exp.Med. / Year: 2004
Title: T Cell Cross-Reactivity and Conformational Changes During Tcr Engagement.
Authors: Lee, J.K. / Stewart-Jones, G. / Dong, T. / Harlos, K. / Di Gleria, K. / Dorrell, L. / Douek, D.C. / Van Der Merwe, P.A. / Jones, E.Y. / Mcmichael, A.J.
History
DepositionJun 7, 2007Deposition site: PDBE / Processing site: PDBE
SupersessionNov 6, 2007ID: 2BSV
Revision 1.0Nov 6, 2007Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf
Revision 1.4Nov 20, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature
Remark 700 SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN ... SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
B: BETA-2 MICROGLOBULIN
C: HIV P17
D: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
E: BETA-2 MICROGLOBULIN
F: HIV P17


Theoretical massNumber of molelcules
Total (without water)89,5926
Polymers89,5926
Non-polymers00
Water23,8341323
1
A: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
B: BETA-2 MICROGLOBULIN
C: HIV P17


Theoretical massNumber of molelcules
Total (without water)44,7963
Polymers44,7963
Non-polymers00
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5000 Å2
ΔGint-28 kcal/mol
Surface area21720 Å2
MethodPQS
2
D: HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
E: BETA-2 MICROGLOBULIN
F: HIV P17


Theoretical massNumber of molelcules
Total (without water)44,7963
Polymers44,7963
Non-polymers00
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5000 Å2
ΔGint-28 kcal/mol
Surface area21830 Å2
MethodPQS
Unit cell
Length a, b, c (Å)50.308, 63.606, 74.744
Angle α, β, γ (deg.)81.83, 76.21, 77.73
Int Tables number1
Space group name H-MP1

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Components

#1: Protein HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN / HLA-A0201 / MHC CLASS I ANTIGEN A*2


Mass: 31951.316 Da / Num. of mol.: 2 / Fragment: PEPTIDE BINDING DOMAIN, RESIDUES 25-300
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: P01892, UniProt: P04439*PLUS
#2: Protein BETA-2 MICROGLOBULIN


Mass: 11879.356 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: P61769
#3: Protein/peptide HIV P17


Mass: 965.101 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) HUMAN IMMUNODEFICIENCY VIRUS
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1323 / Source method: isolated from a natural source / Formula: H2O
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: 2.14 Å3/Da / Density % sol: 51.2 % / Description: NONE
Crystal growpH: 6.5 / Details: pH 6.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SRS / Beamline: PX14.2 / Wavelength: 0.979
DetectorType: ADSC CCD / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 1.6→20 Å / Num. obs: 211504 / % possible obs: 86.5 % / Observed criterion σ(I): 2 / Redundancy: 2.1 % / Rmerge(I) obs: 0.06 / Net I/σ(I): 14
Reflection shellResolution: 1.6→1.66 Å / Redundancy: 1.9 % / Rmerge(I) obs: 0.6 / Mean I/σ(I) obs: 1.25 / % possible all: 43

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1HHI

1hhi


Resolution: 1.6→72.17 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.935 / SU B: 2.197 / SU ML: 0.077 / Cross valid method: THROUGHOUT / ESU R: 0.111 / ESU R Free: 0.114 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.238 5039 5 %RANDOM
Rwork0.192 ---
obs0.194 95676 87.2 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 22.02 Å2
Baniso -1Baniso -2Baniso -3
1-0.54 Å20.37 Å20.83 Å2
2---0.22 Å2-0.05 Å2
3----0.86 Å2
Refinement stepCycle: LAST / Resolution: 1.6→72.17 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6210 0 0 1323 7533
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0120.0216390
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.3931.9238672
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.0055762
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.30323.012332
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.186151016
X-RAY DIFFRACTIONr_dihedral_angle_4_deg14.951554
X-RAY DIFFRACTIONr_chiral_restr0.10.2882
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.025034
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2130.23200
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3010.24337
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1620.21085
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.160.262
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1930.282
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.9241.53915
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.43326114
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.28332903
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it3.3964.52558
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.6→1.64 Å / Total num. of bins used: 20 /
RfactorNum. reflection
Rfree0.392 178
Rwork0.314 3344

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