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

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Basic information

Entry
Database: PDB / ID: 6tdr
TitleCrystal structure of the disulfide engineered HLA-A0201 molecule devoid of peptide (annealed)
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
MHC class I antigen / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.75 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 10, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 25, 2020Provider: repository / Type: Initial release
Revision 1.1Jan 24, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id
Revision 1.2Oct 23, 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
C: MHC class I antigen
D: Beta-2-microglobulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)87,98912
Polymers87,6094
Non-polymers3798
Water20,5731142
1
A: MHC class I antigen
B: Beta-2-microglobulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,0146
Polymers43,8052
Non-polymers2094
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3180 Å2
ΔGint-15 kcal/mol
Surface area19060 Å2
MethodPISA
2
C: MHC class I antigen
D: Beta-2-microglobulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,9756
Polymers43,8052
Non-polymers1704
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3390 Å2
ΔGint-22 kcal/mol
Surface area19310 Å2
MethodPISA
Unit cell
Length a, b, c (Å)58.728, 82.735, 83.891
Angle α, β, γ (deg.)90.000, 90.060, 90.000
Int Tables number4
Space group name H-MP1211
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21C
12B
22D

NCS domain segments:

Component-ID: _ / Refine code: _

Dom-IDEns-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11GLYGLYGLUGLUAA1 - 2752 - 276
21GLYGLYGLUGLUCC1 - 2752 - 276
12METMETMETMETBB1 - 1001 - 100
22METMETMETMETDD1 - 1001 - 100

NCS ensembles :
ID
1
2

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Components

#1: Protein MHC class I antigen


Mass: 31925.363 Da / Num. of mol.: 2
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.: 2
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
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C2H6O2 / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Na / Feature type: SUBJECT OF INVESTIGATION
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1142 / Source method: isolated from a natural source / Formula: H2O
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: 2.33 Å3/Da / Density % sol: 47.13 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop
Details: 0.1 M HEPES pH 7.5, 20% PEG 10 000, 8% ethylene glycol

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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
Reflection twin
Crystal-IDIDOperatorDomain-IDFraction
11H, K, L10.191
11-h,-k,l20.809
ReflectionResolution: 1.75→84 Å / Num. obs: 76159 / % possible obs: 94.2 % / Redundancy: 2.7 % / CC1/2: 1 / Rmerge(I) obs: 0.095 / Net I/σ(I): 7.3
Reflection shellResolution: 1.75→1.794 Å / Rmerge(I) obs: 0.72 / Num. unique obs: 5272 / CC1/2: 0.57

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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: 1.75→83.89 Å / Cor.coef. Fo:Fc: 0.958 / Cor.coef. Fo:Fc free: 0.933 / SU B: 1.936 / SU ML: 0.067 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.029 / ESU R Free: 0.029
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2299 3641 4.8 %RANDOM
Rwork0.1765 ---
obs0.179 72515 93.86 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso max: 70.36 Å2 / Biso mean: 22.339 Å2 / Biso min: 11.04 Å2
Baniso -1Baniso -2Baniso -3
1--11.73 Å20 Å25.85 Å2
2--26.09 Å20 Å2
3----14.36 Å2
Refinement stepCycle: final / Resolution: 1.75→83.89 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6161 0 23 1142 7326
Biso mean--29.2 32.21 -
Num. residues----750
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0120.0146668
X-RAY DIFFRACTIONr_bond_other_d0.0010.0175578
X-RAY DIFFRACTIONr_angle_refined_deg1.5631.6689070
X-RAY DIFFRACTIONr_angle_other_deg0.9221.64513161
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.1975807
X-RAY DIFFRACTIONr_dihedral_angle_2_deg28.93721.295417
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.24151112
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.0221560
X-RAY DIFFRACTIONr_chiral_restr0.0810.2813
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.027733
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021331
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Weight position: 0.05

Ens-IDDom-IDAuth asym-IDNumberRms dev position (Å)
11A93340.09
12C93340.09
21B33080.07
22D33080.07
LS refinement shellResolution: 1.75→1.794 Å / Rfactor Rfree error: 0
RfactorNum. reflection% reflection
Rfree0.349 267 -
Rwork0.225 5272 -
obs--92.7 %

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