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- PDB-3mrq: Crystal Structure of MHC class I HLA-A2 molecule complexed with M... -
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Basic information
Entry | Database: PDB / ID: 3mrq | ||||||
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Title | Crystal Structure of MHC class I HLA-A2 molecule complexed with Melan-A MART1 decapeptide variant | ||||||
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![]() | IMMUNE SYSTEM / MHC class I / HLA / IMMUNE RESPONSE / DECAPEPTIDE / TUMORAL PEPTIDE / MELAN-A / MART1 | ||||||
Function / homology | ![]() T cell mediated cytotoxicity directed against tumor cell target / positive regulation of memory T cell activation / TAP complex binding / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / Golgi medial cisterna / 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 / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / Golgi medial cisterna / 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 / T cell receptor binding / detection of bacterium / 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 / 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 / lumenal side of endoplasmic reticulum membrane / cellular response to iron ion / 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 / regulation of erythrocyte differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of iron ion transport / response to molecule of bacterial origin / trans-Golgi network / 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 / 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 / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / peptide antigen binding / negative regulation of epithelial cell proliferation / antigen processing and presentation of exogenous peptide antigen via MHC class II / 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 / Interferon alpha/beta signaling / positive regulation of type II interferon production / sensory perception of smell / melanosome / 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 receptor signaling pathway / iron ion transport / ER-Phagosome pathway / early endosome membrane / antibacterial humoral response / T cell differentiation in thymus / protein refolding / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / defense response to Gram-positive bacterium / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / lysosomal membrane / external side of plasma membrane / Golgi membrane / innate immune response / focal adhesion / signaling receptor binding / Neutrophil degranulation / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / Golgi apparatus Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Reiser, J.-B. / Le Gorrec, M. / Chouquet, A. / Debeaupuis, E. / Echasserieau, K. / Saulquin, X. / Bonneville, M. / Housset, D. | ||||||
![]() | ![]() Title: Crystal Structure of MHC class I HLA-A2 molecule complexed with Melan-A MART1 decapeptide variant Authors: Reiser, J.-B. / Le Gorrec, M. / Chouquet, A. / Debeaupuis, E. / Echasserieau, K. / Saulquin, X. / Bonneville, M. / Housset, D. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 94.4 KB | Display | ![]() |
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PDB format | ![]() | 70.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 440.3 KB | Display | ![]() |
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Full document | ![]() | 441.1 KB | Display | |
Data in XML | ![]() | 16 KB | Display | |
Data in CIF | ![]() | 22.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3mrpSC S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 34008.711 Da / Num. of mol.: 1 / Fragment: HLA-A*0201 alpha chain, UNP resiude 25-300 / Mutation: A245V Source method: isolated from a genetically manipulated source Details: C-terminal biotin acceptor peptide sequence tag (GSLHHILDAQKMVWNHR) Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 11879.356 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein/peptide | Mass: 986.121 Da / Num. of mol.: 1 Fragment: Melan-A MART1 protein fragment, UNP residues 26-35 Mutation: I5L/L8N / Source method: obtained synthetically Details: chemical synthesis; Variant of a sequence occurring in Human Melan-A MART1 protein Source: (synth.) ![]() |
#4: Water | ChemComp-HOH / |
Sequence details | FOR THE MELAN-A MART1 DECAPEPTID |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.87 Å3/Da / Density % sol: 57.19 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: 17% PEG 6000, 0.1M NaCitrate, 0.1M NaCl, 2.61mg/ml protein conc., pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
-Data collection
Diffraction | Mean temperature: 100 K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: ADSC QUANTUM 315r / Detector: CCD / Date: May 4, 2007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.95 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 2.2→50 Å / Num. obs: 28175 / % possible obs: 100 % / Observed criterion σ(I): -3 / Redundancy: 7.12 % / Biso Wilson estimate: 28.072 Å2 / Rmerge(I) obs: 0.129 / Net I/σ(I): 12.17 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 3MRP Resolution: 2.2→14.84 Å / Cor.coef. Fo:Fc: 0.936 / Cor.coef. Fo:Fc free: 0.91 / Occupancy max: 1 / Occupancy min: 0.5 / SU B: 3.75 / SU ML: 0.098 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.193 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: 10 to 20 refinement cycles with all observed reflections were performed at the end of the refinement procedure, in order to obtain the most accurate model. Rwork and Rfree values corresponds ...Details: 10 to 20 refinement cycles with all observed reflections were performed at the end of the refinement procedure, in order to obtain the most accurate model. Rwork and Rfree values corresponds to the coordinates just before these very last cycles.
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 63.94 Å2 / Biso mean: 31.322 Å2 / Biso min: 15.61 Å2
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Refinement step | Cycle: LAST / Resolution: 2.2→14.84 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.2→2.256 Å / Total num. of bins used: 20
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