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- PDB-2gtw: Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MA... -
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Open data
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Basic information
Entry | Database: PDB / ID: 2gtw | ||||||
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Title | Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MART-1(27-35) peptide having A27L substitution | ||||||
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![]() | IMMUNE SYSTEM / Melan-A/MART-1 peptide / nonapeptide / MHC class I / HLA-A2 / A27L mutation / melanoma / cancer vaccines | ||||||
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 | ![]() ![]() ![]() | ||||||
![]() | Borbulevych, O.Y. / Baker, B.M. | ||||||
![]() | ![]() Title: Structures of MART-1(26/27-35) Peptide/HLA-A2 Complexes Reveal a Remarkable Disconnect between Antigen Structural Homology and T Cell Recognition Authors: Borbulevych, O.Y. / Insaidoo, F.K. / Baxter, T.K. / Powell, D.J. / Johnson, L.A. / Restifo, N.P. / Baker, B.M. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 186.7 KB | Display | ![]() |
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PDB format | ![]() | 146.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 492 KB | Display | ![]() |
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Full document | ![]() | 501.2 KB | Display | |
Data in XML | ![]() | 37 KB | Display | |
Data in CIF | ![]() | 54.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 2gt9C ![]() 2gtzC ![]() 2guoC ![]() 1tvbS C: citing same article ( S: Starting model for refinement |
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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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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Component-ID: 1 / Refine code: 4
NCS ensembles :
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Components
-Protein , 2 types, 4 molecules ADBE
#1: Protein | Mass: 31854.203 Da / Num. of mol.: 2 / Fragment: heavy chain Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 11879.356 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Protein/peptide , 1 types, 2 molecules CF
#3: Protein/peptide | Mass: 856.062 Da / Num. of mol.: 2 / Fragment: residues 27-35 / Mutation: A27L / Source method: obtained synthetically / Details: Commercial synthesis for the peptide / References: UniProt: Q16655 |
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-Non-polymers , 4 types, 683 molecules ![](data/chem/img/GOL.gif)
![](data/chem/img/FMT.gif)
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![](data/chem/img/HOH.gif)
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#4: Chemical | ChemComp-GOL / #5: Chemical | ChemComp-FMT / #6: Chemical | #7: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.32 Å3/Da / Density % sol: 47.01 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, sitting drop / pH: 6.5 Details: PEG 3350 24%, MES 0.025M, HCOOK 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Aug 20, 2005 |
Radiation | Monochromator: DOUBLE CRYSTAL SI(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.033 Å / Relative weight: 1 |
Reflection | Resolution: 1.548→20 Å / Num. all: 118490 / Num. obs: 110421 / % possible obs: 93.2 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Redundancy: 3.1 % / Biso Wilson estimate: 17 Å2 / Rmerge(I) obs: 0.108 / Net I/σ(I): 14.8 |
Reflection shell | Resolution: 1.548→1.61 Å / Redundancy: 1.5 % / Rmerge(I) obs: 0.354 / Mean I/σ(I) obs: 2.11 / Num. unique all: 8400 / % possible all: 71.2 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB entry 1TVB Resolution: 1.548→20 Å / Cor.coef. Fo:Fc: 0.961 / Cor.coef. Fo:Fc free: 0.944 / SU B: 3.217 / SU ML: 0.058 / TLS residual ADP flag: LIKELY RESIDUAL / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / σ(F): 1 / ESU R: 0.089 / ESU R Free: 0.091 / Stereochemistry target values: Engh & Huber
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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 mean: 22.072 Å2
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Refinement step | Cycle: LAST / Resolution: 1.548→20 Å
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Refine LS restraints |
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Refine LS restraints NCS | Dom-ID: 1 / Refine-ID: X-RAY DIFFRACTION
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LS refinement shell | Resolution: 1.548→1.588 Å / Total num. of bins used: 20
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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