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- PDB-6tdo: Crystal structure of the disulfide engineered HLA-A0201 molecule ... -

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Basic information

Entry
Database: PDB / ID: 6tdo
TitleCrystal structure of the disulfide engineered HLA-A0201 molecule in complex with one GM dipeptide in the A pocket.
Components
  • Beta-2-microglobulin
  • MHC class I antigen
KeywordsIMMUNE SYSTEM / MHC Class I molecule
Function / homology
Function and homology information


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 / 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 ...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 / 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 / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / endoplasmic reticulum lumen / Amyloid fiber formation / Golgi membrane / lysosomal membrane / external side of plasma membrane / focal adhesion / Neutrophil degranulation / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / 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-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 / : ...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
GLYCINE / METHIONINE / MHC class I antigen / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.65 Å
AuthorsAnjanappa, R. / Garcia Alai, M. / Springer, S. / Meijers, R.
Funding support Germany, 1items
OrganizationGrant numberCountry
European Commission653706 Germany
CitationJournal: Nat Commun / Year: 2020
Title: Structures of peptide-free and partially loaded MHC class I molecules reveal mechanisms of peptide selection.
Authors: Anjanappa, R. / Garcia-Alai, M. / Kopicki, J.D. / Lockhauserbaumer, J. / Aboelmagd, M. / Hinrichs, J. / Nemtanu, I.M. / Uetrecht, C. / Zacharias, M. / Springer, S. / Meijers, R.
History
DepositionNov 9, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 25, 2020Provider: repository / Type: Initial release
Revision 1.1Jan 24, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Oct 9, 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
B: Beta-2-microglobulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,2136
Polymers43,8052
Non-polymers4084
Water9,404522
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: mass spectrometry
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3080 Å2
ΔGint-8 kcal/mol
Surface area18680 Å2
MethodPISA
Unit cell
Length a, b, c (Å)52.936, 80.914, 56.351
Angle α, β, γ (deg.)90.000, 112.740, 90.000
Int Tables number4
Space group name H-MP1211

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein MHC class I antigen


Mass: 31925.363 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A / Production host: Escherichia coli (E. coli) / References: UniProt: F6IQS1
#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 (E. coli) / References: UniProt: P61769

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Non-polymers , 4 types, 526 molecules

#3: Chemical ChemComp-GLY / GLYCINE


Type: peptide linking / Mass: 75.067 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H5NO2
#4: Chemical ChemComp-MET / METHIONINE


Type: L-peptide linking / Mass: 149.211 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H11NO2S
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3 / Feature type: SUBJECT OF INVESTIGATION
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 522 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.53 Å3/Da / Density % sol: 51.36 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop
Details: 0.2 M magnesium acetate, 0.1 M sodium cacodylate pH 6.5, and 20% PEG 800

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X13 / Wavelength: 0.987 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Dec 12, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.987 Å / Relative weight: 1
ReflectionResolution: 1.65→81 Å / Num. obs: 52645 / % possible obs: 99.9 % / Redundancy: 6.9 % / CC1/2: 0.99 / Rmerge(I) obs: 0.056 / Net I/σ(I): 11.3
Reflection shellResolution: 1.65→1.69 Å / Rmerge(I) obs: 0.78 / Num. unique obs: 3642 / CC1/2: 0.49

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Processing

Software
NameVersionClassification
REFMAC5.8.0230refinement
PDB_EXTRACT3.25data extraction
XDSdata reduction
Aimlessdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6Q3K

6q3k


Resolution: 1.65→51.97 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.936 / SU B: 1.329 / SU ML: 0.049 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.022 / ESU R Free: 0.022
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2237 2607 5 %RANDOM
Rwork0.1857 ---
obs0.1876 49987 99.85 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso max: 77.4 Å2 / Biso mean: 19.664 Å2 / Biso min: 7.1 Å2
Baniso -1Baniso -2Baniso -3
1-0.12 Å20 Å2-0.22 Å2
2---0.21 Å20 Å2
3---0.1 Å2
Refinement stepCycle: final / Resolution: 1.65→51.97 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3077 0 25 522 3624
Biso mean--26.04 34.51 -
Num. residues----373
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0150.0143365
X-RAY DIFFRACTIONr_bond_other_d0.0010.0172801
X-RAY DIFFRACTIONr_angle_refined_deg1.8331.6724586
X-RAY DIFFRACTIONr_angle_other_deg1.0811.6456616
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.9065409
X-RAY DIFFRACTIONr_dihedral_angle_2_deg28.22821.215214
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.37715553
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.0861531
X-RAY DIFFRACTIONr_chiral_restr0.0960.2411
X-RAY DIFFRACTIONr_gen_planes_refined0.0120.023909
X-RAY DIFFRACTIONr_gen_planes_other0.0030.02679
LS refinement shellResolution: 1.65→1.693 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.286 179 -
Rwork0.25 3642 -
all-3821 -
obs--98.71 %

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