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- PDB-6q3k: Engineered Human HLA_A2 MHC Class I molecule in complex with NV9 ... -

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Basic information

Entry
Database: PDB / ID: 6q3k
TitleEngineered Human HLA_A2 MHC Class I molecule in complex with NV9 peptide
Components
  • ASN-LEU-VAL-PRO-MET-VAL-ALA-THR-VAL
  • Beta-2-microglobulinBeta-2 microglobulin
  • HLA class I histocompatibility antigen, A-2 alpha chain
KeywordsIMMUNE SYSTEM / MHC molecule / engineered disulphide bond
Function / homology
Function and homology information


T cell mediated cytotoxicity directed against tumor cell target / positive regulation of memory T cell activation / 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 / endoplasmic reticulum exit site ...T cell mediated cytotoxicity directed against tumor cell target / positive regulation of memory T cell activation / 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 / 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 / beta-2-microglobulin binding / detection of bacterium / T cell receptor binding / 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 / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / negative regulation of receptor binding / lumenal side of endoplasmic reticulum membrane / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / regulation of erythrocyte differentiation / peptide antigen assembly with MHC class I protein complex / response to molecule of bacterial origin / regulation of iron ion transport / MHC class I peptide loading complex / HFE-transferrin receptor complex / T cell mediated cytotoxicity / cellular response to iron ion / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / MHC class I protein complex / multicellular organismal-level iron ion homeostasis / negative regulation of neurogenesis / peptide antigen assembly with MHC class II protein complex / positive regulation of receptor-mediated endocytosis / MHC class II protein complex / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / recycling endosome membrane / specific granule lumen / phagocytic vesicle membrane / peptide antigen binding / positive regulation of cellular senescence / antigen processing and presentation of exogenous peptide antigen via MHC class II / negative regulation of epithelial cell proliferation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / positive regulation of immune response / Modulation by Mtb of host immune system / positive regulation of type II interferon production / Interferon alpha/beta signaling / sensory perception of smell / positive regulation of T cell activation / positive regulation of protein binding / tertiary granule lumen / E3 ubiquitin ligases ubiquitinate target proteins / DAP12 signaling / negative regulation of neuron projection development / MHC class II protein complex binding / late endosome membrane / T cell differentiation in thymus / T cell receptor signaling pathway / ER-Phagosome pathway / iron ion transport / early endosome membrane / protein refolding / antibacterial humoral response / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / defense response to Gram-positive bacterium / immune response / Amyloid fiber formation / lysosomal membrane / external side of plasma membrane / endoplasmic reticulum lumen / Golgi membrane / signaling receptor binding / focal adhesion / innate immune response / Neutrophil degranulation / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / Golgi apparatus / cell surface / endoplasmic reticulum
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 classes I/II-like antigen recognition protein ...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 / Immunoglobulins / Immunoglobulin-like fold / 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)
Cytomegalovirus
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.5 Å
AuthorsMeijers, R. / Anjanappa, R. / Springer, S. / Garcia-Alai, M.
Funding support1items
OrganizationGrant numberCountry
European Commission653706
CitationJournal: Sci Immunol / Year: 2019
Title: Engineered Human HLA_A2MHC Class I molecule in complex with NV9 peptide
Authors: Meijers, R. / Anjanappa, R. / Springer, S. / Garcia-Alai, M.
History
DepositionDec 4, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 24, 2019Provider: repository / Type: Initial release
Revision 1.1Nov 20, 2019Group: Derived calculations / Category: pdbx_struct_conn_angle / struct_conn
Revision 1.2Jan 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
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_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_alt_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_symmetry / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_ptnr1_label_alt_id / _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_conn.ptnr2_symmetry

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: HLA class I histocompatibility antigen, A-2 alpha chain
B: Beta-2-microglobulin
P: ASN-LEU-VAL-PRO-MET-VAL-ALA-THR-VAL
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,34512
Polymers44,7483
Non-polymers5979
Water10,611589
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5240 Å2
ΔGint-54 kcal/mol
Surface area19260 Å2
MethodPISA
Unit cell
Length a, b, c (Å)60.158, 80.575, 109.693
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein HLA class I histocompatibility antigen, A-2 alpha chain / MHC class I antigen A*2


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, HLAA / Production host: Escherichia coli (E. coli) / References: UniProt: P01892, UniProt: P04439*PLUS
#2: Protein Beta-2-microglobulin / 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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Protein/peptide , 1 types, 1 molecules P

#3: Protein/peptide ASN-LEU-VAL-PRO-MET-VAL-ALA-THR-VAL


Mass: 943.161 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Cytomegalovirus / Production host: synthetic construct (others)

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Non-polymers , 3 types, 598 molecules

#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#5: Chemical
ChemComp-CO / COBALT (II) ION


Mass: 58.933 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Co
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 589 / Source method: isolated from a natural source / Formula: H2O

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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: 2.97 Å3/Da / Density % sol: 58.59 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop
Details: 5 mM cobalt chloride, 5 mM cadmium chloride, 5 mM magnesium chloride, 5 mM nickel chloride, 0.1 M HEPES pH 7.5, 12 % PEG 3350.

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: PETRA III, EMBL c/o DESY / Beamline: P13 (MX1) / Wavelength: 0.9763 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Dec 9, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9763 Å / Relative weight: 1
ReflectionResolution: 1.5→65 Å / Num. obs: 81571 / % possible obs: 99.9 % / Redundancy: 5.4 % / Rpim(I) all: 0.055 / Net I/σ(I): 7.3
Reflection shellResolution: 1.5→1.53 Å

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Processing

Software
NameVersionClassification
REFMAC5.8.0189refinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3MRE

3mre


Resolution: 1.5→64.94 Å / Cor.coef. Fo:Fc: 0.969 / Cor.coef. Fo:Fc free: 0.958 / SU B: 1.376 / SU ML: 0.049 / Cross valid method: THROUGHOUT / ESU R: 0.064 / ESU R Free: 0.066 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.19955 4265 5 %RANDOM
Rwork0.17428 ---
obs0.17552 81571 99.85 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 23.012 Å2
Baniso -1Baniso -2Baniso -3
1--0.73 Å20 Å20 Å2
2--0.65 Å20 Å2
3---0.08 Å2
Refinement stepCycle: 1 / Resolution: 1.5→64.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3142 0 19 589 3750
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0130.0193301
X-RAY DIFFRACTIONr_bond_other_d0.0010.022885
X-RAY DIFFRACTIONr_angle_refined_deg1.5081.9224492
X-RAY DIFFRACTIONr_angle_other_deg0.7823.0016699
X-RAY DIFFRACTIONr_dihedral_angle_1_deg11.1115.063399
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.96123.257175
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.23515540
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.3091528
X-RAY DIFFRACTIONr_chiral_restr0.1230.2463
X-RAY DIFFRACTIONr_gen_planes_refined0.0150.023713
X-RAY DIFFRACTIONr_gen_planes_other0.0020.02735
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it2.8741.9091554
X-RAY DIFFRACTIONr_mcbond_other2.8751.9091553
X-RAY DIFFRACTIONr_mcangle_it3.9192.8531943
X-RAY DIFFRACTIONr_mcangle_other3.9182.8531944
X-RAY DIFFRACTIONr_scbond_it4.5492.3431747
X-RAY DIFFRACTIONr_scbond_other4.5412.3431747
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other6.5743.3362542
X-RAY DIFFRACTIONr_long_range_B_refined8.58125.3153969
X-RAY DIFFRACTIONr_long_range_B_other8.36324.0213796
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.5→1.539 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.31 317 -
Rwork0.311 5927 -
obs--99.9 %

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