+Open data
-Basic information
Entry | Database: PDB / ID: 6ttf | ||||||
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Title | PKM2 in complex with Compound 5 | ||||||
Components | Pyruvate kinase PKM | ||||||
Keywords | CYTOSOLIC PROTEIN / PKM2 / FBDD | ||||||
Function / homology | Function and homology information pyruvate kinase / pyruvate kinase activity / Pyruvate metabolism / histone H3T11 kinase activity / programmed cell death / positive regulation of cytoplasmic translation / canonical glycolysis / Glycolysis / positive regulation of sprouting angiogenesis / potassium ion binding ...pyruvate kinase / pyruvate kinase activity / Pyruvate metabolism / histone H3T11 kinase activity / programmed cell death / positive regulation of cytoplasmic translation / canonical glycolysis / Glycolysis / positive regulation of sprouting angiogenesis / potassium ion binding / rough endoplasmic reticulum / Regulation of pyruvate metabolism / glycolytic process / non-specific protein-tyrosine kinase / cilium / cellular response to insulin stimulus / extracellular vesicle / MHC class II protein complex binding / protein tyrosine kinase activity / collagen-containing extracellular matrix / secretory granule lumen / vesicle / ficolin-1-rich granule lumen / transcription coactivator activity / non-specific serine/threonine protein kinase / cadherin binding / mRNA binding / Neutrophil degranulation / magnesium ion binding / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / mitochondrion / RNA binding / extracellular exosome / extracellular region / ATP binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||
Authors | Saur, M. / Hartshorn, M.J. / Dong, J. / Reeks, J. / Bunkoczi, G. / Jhoti, H. / Williams, P.A. | ||||||
Citation | Journal: Drug Discov Today / Year: 2020 Title: Fragment-based drug discovery using cryo-EM. Authors: Michael Saur / Michael J Hartshorn / Jing Dong / Judith Reeks / Gabor Bunkoczi / Harren Jhoti / Pamela A Williams / Abstract: Recent advances in electron cryo-microscopy (cryo-EM) structure determination have pushed the resolutions obtainable by the method into the range widely considered to be of utility for drug discovery. ...Recent advances in electron cryo-microscopy (cryo-EM) structure determination have pushed the resolutions obtainable by the method into the range widely considered to be of utility for drug discovery. Here, we review the use of cryo-EM in fragment-based drug discovery (FBDD) based on in-house method development. We demonstrate not only that cryo-EM can reveal details of the molecular interactions between fragments and a protein, but also that the current reproducibility, quality, and throughput are compatible with FBDD. We exemplify this using the test system β-galactosidase (Bgal) and the oncology target pyruvate kinase 2 (PKM2). | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6ttf.cif.gz | 394.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6ttf.ent.gz | 323.6 KB | Display | PDB format |
PDBx/mmJSON format | 6ttf.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6ttf_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 6ttf_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 6ttf_validation.xml.gz | 66.7 KB | Display | |
Data in CIF | 6ttf_validation.cif.gz | 94.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/tt/6ttf ftp://data.pdbj.org/pub/pdb/validation_reports/tt/6ttf | HTTPS FTP |
-Related structure data
Related structure data | 10575MC 6tshC 6tskC 6tteC 6tthC 6ttiC 6ttqC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10648 (Title: PKM2 in complex with Compound 5 / Data size: 773.8 Data #1: Data from EPU (movies have been converted to compressed TIF) [micrographs - multiframe]) |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 59831.820 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PKM, OIP3, PK2, PK3, PKM2 / Production host: Escherichia coli (E. coli) / References: UniProt: P14618, pyruvate kinase #2: Chemical | ChemComp-LZ2 / #3: Sugar | ChemComp-FBP / #4: Water | ChemComp-HOH / | Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Pyruvate Kinase M2 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Molecular weight | Value: 0.24 MDa / Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 8.2 |
Specimen | Conc.: 0.16 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-Electron microscopy imaging
Microscopy | Model: TFS GLACIOS |
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Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Average exposure time: 37.06 sec. / Electron dose: 54.85 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 707 |
-Processing
EM software | Name: RELION / Version: 3.04 / Category: 3D reconstruction |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
Particle selection | Num. of particles selected: 371779 |
Symmetry | Point symmetry: D2 (2x2 fold dihedral) |
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 287873 / Symmetry type: POINT |