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- PDB-9fe1: Cryo-EM structure of the ternary DARPin NY_1/HLA-A0201/NY-ESO1 co... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9fe1 | |||||||||||||||||||||||||||||||||
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Title | Cryo-EM structure of the ternary DARPin NY_1/HLA-A0201/NY-ESO1 complex. | |||||||||||||||||||||||||||||||||
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![]() | IMMUNE SYSTEM / DARPin targeting MHC molecules in complex with tumor-associated peptide antigens | |||||||||||||||||||||||||||||||||
Function / homology | ![]() tRNA threonylcarbamoyladenosine metabolic process / : / : / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway ...tRNA threonylcarbamoyladenosine metabolic process / : / : / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / 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 / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / MHC class II protein complex / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / regulation of iron ion transport / MHC class I peptide loading complex / response to molecule of bacterial origin / 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 / antigen processing and presentation of exogenous peptide antigen via MHC class II / MHC class I protein complex / positive regulation of immune response / peptide antigen binding / negative regulation of neurogenesis / positive regulation of T cell mediated cytotoxicity / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of T cell activation / cellular response to nicotine / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / Interferon gamma signaling / MHC class II protein complex binding / positive regulation of protein binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / negative regulation of neuron projection development / iron ion transport / T cell differentiation in thymus / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / Amyloid fiber formation / endoplasmic reticulum lumen / Golgi membrane / external side of plasma membrane / lysosomal 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 / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||||||||
Biological species | ![]() synthetic construct (others) | |||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||||||||||||||||||||||||||
![]() | Schulte, T. / Wallden, K. / Carroni, M. / Sandalova, T. / Walser, M. / Mueller, S. / Venetz, N. / Achour, A. | |||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Development of highly specific and potent HLA/peptide-targeting DARPin T cell engagers Authors: Venetz, N. / Schulte, T. / Mueller, S. / Wallden, K. / Fischer, S. / Kadri, N. / Paladino, M. / Pina, N. / Radom, F. / Villemagne, D. / Bruckmaier, S. / Cornelius, A. / Hospodarsch, T. / ...Authors: Venetz, N. / Schulte, T. / Mueller, S. / Wallden, K. / Fischer, S. / Kadri, N. / Paladino, M. / Pina, N. / Radom, F. / Villemagne, D. / Bruckmaier, S. / Cornelius, A. / Hospodarsch, T. / Sun, R. / Chambers, B.J. / Carroni, M. / Levitsky, V. / Sandalova, T. / Walser, M. / Achour, A. | |||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 187.2 KB | Display | ![]() |
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PDB format | ![]() | 149.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 50336MC ![]() 9epaC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 33541.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 11879.356 Da / Num. of mol.: 1 / Fragment: UNP residues 21-119 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein/peptide | Mass: 1090.335 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
#4: Protein | Mass: 18596.217 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Ternary complex formed between the DARPin NY_1 and HLA-A0201/hb2m/NY-ESO1_157-165(9V) Type: COMPLEX Details: Size-exclusion chromatography (SEC) was used to purify refolded complexes of HLA-A0201 with human beta-2-microglobulin (hb2m) and the peptide NY-ESO1157-165(9V). Strep-Tactin Superflow high ...Details: Size-exclusion chromatography (SEC) was used to purify refolded complexes of HLA-A0201 with human beta-2-microglobulin (hb2m) and the peptide NY-ESO1157-165(9V). Strep-Tactin Superflow high capacity columns (1 mL, IBA lifescience) run in 20 mM HEPES, 300 mM NaCl pH 7.5 were used for further purification. After a column wash, the protein was eluted using the same buffer supplemented with 2.5 mM desthiobiotin. TEV-cleaved DARPin NY_1 was reverse-purified via IMAC and the monomer was isolated from Superdex 200 equilibrated in 20 mM HEPES, 150 mM NaCl pH 7.5. For cross-linking, HLA-A0201/NY-ESO1157-165(9V) was mixed in a 1:2 molar ratio with NY_1, concentrated to an absorbance at 280 nm (Abs280) of 2.3, and incubated for 45 min in 25 mM HEPES, 150 mM NaCl, supplemented with 1.4 mM BS(PEG)5 (BS5) (ThermoScientific). The cross-linker was quenched by addition of 25 mM Tris. Samples for grid screening were isolated from Superdex 200 GL 10/300 SEC in 25 mM HEPES, 150 mM NaCl, pH 7.4, and concentrated to Abs280 values of 2. Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 0.06 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 / Details: 25 mM HEPES, 150 mM NaCl, pH 7.4 |
Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 600 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 2.3 sec. / Electron dose: 57.5 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 10855 |
EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 7726585 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 204743 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Space: REAL Details: The crystal structures of NY_1 and HLA-A0201/NY-ESO1 (PDB 1S9W) were placed into the initial map in ChimeraX. The model was iteratively refined by model building in Coot and ChimeraX-Isolde, ...Details: The crystal structures of NY_1 and HLA-A0201/NY-ESO1 (PDB 1S9W) were placed into the initial map in ChimeraX. The model was iteratively refined by model building in Coot and ChimeraX-Isolde, as well as Phenix real space refinement with integrated amber force field with Ramachandran, secondary structure and reference structure restraints | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Type: experimental model
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Refine LS restraints |
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