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Yorodumi- PDB-8cmh: Human Leukocyte Antigen class II allotype DR1 presenting SARS-CoV... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8cmh | ||||||
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Title | Human Leukocyte Antigen class II allotype DR1 presenting SARS-CoV-2 Omicron (BA.1) Spike peptide S486-505 | ||||||
Components |
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Keywords | IMMUNE SYSTEM / HLA-II / HLA-DR / HLA-DR1 / human leukocyte antigen / major histocompatibility complex / major histocompatibility complex class 2 / SARS-CoV-2 / coronavirus / COVID-19 / Spike / omicron / BA.1 / viral variant / immune escape | ||||||
Function / homology | Function and homology information myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / autolysosome membrane / regulation of T-helper cell differentiation / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / MHC class II receptor activity / positive regulation of CD4-positive, alpha-beta T cell activation / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / positive regulation of memory T cell differentiation / transport vesicle membrane ...myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / autolysosome membrane / regulation of T-helper cell differentiation / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / MHC class II receptor activity / positive regulation of CD4-positive, alpha-beta T cell activation / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / positive regulation of memory T cell differentiation / transport vesicle membrane / polysaccharide binding / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / Generation of second messenger molecules / immunological synapse / PD-1 signaling / T cell receptor binding / MHC class II antigen presentation / trans-Golgi network membrane / lumenal side of endoplasmic reticulum membrane / clathrin-coated endocytic vesicle membrane / ER to Golgi transport vesicle membrane / cognition / peptide antigen assembly with MHC class II protein complex / positive regulation of T cell mediated cytotoxicity / MHC class II protein complex / peptide antigen binding / endocytic vesicle membrane / antigen processing and presentation of exogenous peptide antigen via MHC class II / Interferon gamma signaling / positive regulation of immune response / positive regulation of T cell activation / Downstream TCR signaling / MHC class II protein complex binding / late endosome membrane / early endosome membrane / Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / adaptive immune response / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / lysosome / receptor ligand activity / host cell surface receptor binding / immune response / lysosomal membrane / fusion of virus membrane with host plasma membrane / Golgi membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / cell surface / extracellular exosome / membrane / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | Homo sapiens (human) Severe acute respiratory syndrome coronavirus 2 | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.64 Å | ||||||
Authors | MacLachlan, B.J. / Mason, G.H. / Sourfield, D.O. / Godkin, A.J. / Rizkallah, P.J. | ||||||
Funding support | United Kingdom, 1items
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Citation | Journal: Cell Rep / Year: 2023 Title: Structural definition of HLA class II-presented SARS-CoV-2 epitopes reveals a mechanism to escape pre-existing CD4 + T cell immunity. Authors: Chen, Y. / Mason, G.H. / Scourfield, D.O. / Greenshields-Watson, A. / Haigh, T.A. / Sewell, A.K. / Long, H.M. / Gallimore, A.M. / Rizkallah, P. / MacLachlan, B.J. / Godkin, A. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8cmh.cif.gz | 221.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8cmh.ent.gz | 146.3 KB | Display | PDB format |
PDBx/mmJSON format | 8cmh.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/cm/8cmh ftp://data.pdbj.org/pub/pdb/validation_reports/cm/8cmh | HTTPS FTP |
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-Related structure data
Related structure data | 8cmbC 8cmcC 8cmdC 8cmeC 8cmfC 8cmgC 8cmiC C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 21287.102 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-DRA, HLA-DRA1 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P01903 |
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#2: Protein | Mass: 22487.186 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) |
-Protein/peptide , 1 types, 1 molecules C
#3: Protein/peptide | Mass: 2414.719 Da / Num. of mol.: 1 / Source method: obtained synthetically Source: (synth.) Severe acute respiratory syndrome coronavirus 2 References: UniProt: P0DTC2 |
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-Non-polymers , 4 types, 357 molecules
#4: Chemical | ChemComp-EDO / #5: Chemical | ChemComp-SO4 / | #6: Chemical | ChemComp-DHL / | #7: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.42 Å3/Da / Density % sol: 49.19 % |
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, sitting drop / pH: 6 Details: 0.1 M Sodium cacodylate pH 6.0, 25 % PEG4000, 0.2 M ammonium sulphate |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: SYNCHROTRON / Site: Diamond / Beamline: I04 / Wavelength: 0.9795 Å |
Detector | Type: DECTRIS EIGER2 XE 16M / Detector: PIXEL / Date: Apr 28, 2022 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.9795 Å / Relative weight: 1 |
Reflection | Resolution: 1.64→50.16 Å / Num. obs: 55347 / % possible obs: 98.92 % / Redundancy: 13.6 % / Biso Wilson estimate: 19.44 Å2 / CC1/2: 0.995 / CC star: 0.999 / Rmerge(I) obs: 0.341 / Rpim(I) all: 0.0949 / Rrim(I) all: 0.354 / Net I/σ(I): 6.2 |
Reflection shell | Resolution: 1.64→1.7 Å / Redundancy: 14.1 % / Rmerge(I) obs: 3.678 / Mean I/σ(I) obs: 0.59 / Num. unique obs: 5416 / CC1/2: 0.34 / CC star: 0.712 / Rpim(I) all: 1.005 / Rrim(I) all: 3.815 / % possible all: 97.87 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.64→50.15 Å / SU ML: 0.2157 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 19.8655 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 25.8 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.64→50.15 Å
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Refine LS restraints |
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LS refinement shell |
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group | Refine-ID: X-RAY DIFFRACTION
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