+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-28817 | ||||||||||||
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Title | P53 monomer structure | ||||||||||||
Map data | P53 monomer structure | ||||||||||||
Sample |
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Keywords | cancer / tumor suppressor / cell cycle / apoptosis / DNA repair / ANTITUMOR PROTEIN | ||||||||||||
Function / homology | Function and homology information Loss of function of TP53 in cancer due to loss of tetramerization ability / Regulation of TP53 Expression / signal transduction by p53 class mediator / negative regulation of G1 to G0 transition / negative regulation of glucose catabolic process to lactate via pyruvate / Transcriptional activation of cell cycle inhibitor p21 / regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Activation of NOXA and translocation to mitochondria / negative regulation of pentose-phosphate shunt / ATP-dependent DNA/DNA annealing activity ...Loss of function of TP53 in cancer due to loss of tetramerization ability / Regulation of TP53 Expression / signal transduction by p53 class mediator / negative regulation of G1 to G0 transition / negative regulation of glucose catabolic process to lactate via pyruvate / Transcriptional activation of cell cycle inhibitor p21 / regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Activation of NOXA and translocation to mitochondria / negative regulation of pentose-phosphate shunt / ATP-dependent DNA/DNA annealing activity / negative regulation of helicase activity / regulation of cell cycle G2/M phase transition / intrinsic apoptotic signaling pathway in response to hypoxia / regulation of fibroblast apoptotic process / oxidative stress-induced premature senescence / oligodendrocyte apoptotic process / negative regulation of miRNA processing / positive regulation of thymocyte apoptotic process / glucose catabolic process to lactate via pyruvate / regulation of tissue remodeling / positive regulation of mitochondrial membrane permeability / negative regulation of mitophagy / positive regulation of programmed necrotic cell death / mRNA transcription / bone marrow development / circadian behavior / T cell proliferation involved in immune response / regulation of mitochondrial membrane permeability involved in apoptotic process / histone deacetylase regulator activity / RUNX3 regulates CDKN1A transcription / germ cell nucleus / regulation of DNA damage response, signal transduction by p53 class mediator / TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain / TP53 Regulates Transcription of Death Receptors and Ligands / Activation of PUMA and translocation to mitochondria / DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / negative regulation of neuroblast proliferation / negative regulation of glial cell proliferation / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / Regulation of TP53 Activity through Association with Co-factors / positive regulation of execution phase of apoptosis / mitochondrial DNA repair / T cell lineage commitment / negative regulation of DNA replication / ER overload response / B cell lineage commitment / thymocyte apoptotic process / positive regulation of cardiac muscle cell apoptotic process / TP53 regulates transcription of several additional cell death genes whose specific roles in p53-dependent apoptosis remain uncertain / TP53 Regulates Transcription of Caspase Activators and Caspases / entrainment of circadian clock by photoperiod / cardiac septum morphogenesis / PI5P Regulates TP53 Acetylation / Association of TriC/CCT with target proteins during biosynthesis / Zygotic genome activation (ZGA) / necroptotic process / rRNA transcription / positive regulation of release of cytochrome c from mitochondria / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / TFIID-class transcription factor complex binding / mitophagy / negative regulation of telomere maintenance via telomerase / SUMOylation of transcription factors / intrinsic apoptotic signaling pathway by p53 class mediator / neuroblast proliferation / general transcription initiation factor binding / cellular response to actinomycin D / Transcriptional Regulation by VENTX / DNA damage response, signal transduction by p53 class mediator / response to X-ray / replicative senescence / chromosome organization / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / gastrulation / cellular response to UV-C / response to inorganic substance / hematopoietic stem cell differentiation / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of RNA polymerase II transcription preinitiation complex assembly / negative regulation of reactive oxygen species metabolic process / MDM2/MDM4 family protein binding / embryonic organ development / glial cell proliferation / Pyroptosis / cis-regulatory region sequence-specific DNA binding / hematopoietic progenitor cell differentiation / cellular response to glucose starvation / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / somitogenesis / type II interferon-mediated signaling pathway / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / positive regulation of intrinsic apoptotic signaling pathway / negative regulation of stem cell proliferation / core promoter sequence-specific DNA binding / negative regulation of fibroblast proliferation / cardiac muscle cell apoptotic process / response to salt stress / transcription initiation-coupled chromatin remodeling / mitotic G1 DNA damage checkpoint signaling / Regulation of TP53 Activity through Acetylation Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 5.0 Å | ||||||||||||
Authors | Solares M / Kelly DF | ||||||||||||
Funding support | United States, 3 items
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Citation | Journal: Chembiochem / Year: 2022 Title: High-Resolution Imaging of Human Cancer Proteins Using Microprocessor Materials. Authors: Maria J Solares / G M Jonaid / William Y Luqiu / Samantha Berry / Janki Khadela / Yanping Liang / Madison C Evans / Kevin J Pridham / William J Dearnaley / Zhi Sheng / Deborah F Kelly / Abstract: Mutations in tumor suppressor genes, such as Tumor Protein 53 (TP53), are heavily implicated in aggressive cancers giving rise to gain- and loss-of-function phenotypes. While individual domains of ...Mutations in tumor suppressor genes, such as Tumor Protein 53 (TP53), are heavily implicated in aggressive cancers giving rise to gain- and loss-of-function phenotypes. While individual domains of the p53 protein have been studied extensively, structural information for full-length p53 remains incomplete. Functionalized microprocessor chips (microchips) with properties amenable to electron microscopy permitted us to visualize complete p53 assemblies for the first time. The new structures revealed p53 in an inactive dimeric state independent of DNA binding. Residues located at the protein-protein interface corresponded with modification sites in cancer-related hot spots. Changes in these regions may amplify the toxic effects of clinical mutations. Taken together, these results contribute advances in technology and imaging approaches to decode native protein models in different states of activation. | ||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_28817.map.gz | 161.8 KB | EMDB map data format | |
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Header (meta data) | emd-28817-v30.xml emd-28817.xml | 17.6 KB 17.6 KB | Display Display | EMDB header |
Images | emd_28817.png | 144.2 KB | ||
Filedesc metadata | emd-28817.cif.gz | 6 KB | ||
Others | emd_28817_half_map_1.map.gz emd_28817_half_map_2.map.gz | 192.5 KB 157.6 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-28817 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-28817 | HTTPS FTP |
-Related structure data
Related structure data | 8f2iMC 8f2hC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_28817.map.gz / Format: CCP4 / Size: 181.6 KB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Annotation | P53 monomer structure | ||||||||||||||||||||
Voxel size | X=Y=Z: 2.3 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Half Map 1
File | emd_28817_half_map_1.map | ||||||||||||
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Annotation | Half Map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half Map 2
File | emd_28817_half_map_2.map | ||||||||||||
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Annotation | Half Map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : P53 monomer isolated from U87-MG cells
Entire | Name: P53 monomer isolated from U87-MG cells |
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Components |
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-Supramolecule #1: P53 monomer isolated from U87-MG cells
Supramolecule | Name: P53 monomer isolated from U87-MG cells / type: cell / ID: 1 / Parent: 0 / Macromolecule list: all / Details: Native protein, wild-type with no tags |
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Source (natural) | Organism: Homo sapiens (human) / Organ: Brain / Tissue: Brain tumor |
-Macromolecule #1: Cellular tumor antigen p53
Macromolecule | Name: Cellular tumor antigen p53 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) / Organ: Brain tumor / Tissue: Brain |
Molecular weight | Theoretical: 43.711176 KDa |
Sequence | String: MEEPQSDPSV EPPLSQETFS DLWKLLPENN VLSPLPSQAM DDLMLSPDDI EQWFTEDPGP DEAPRMPEAA PPVAPAPAAP TPAAPAPAP SWPLSSSVPS QKTYQGSYGF RLGFLHSGTA KSVTCTYSPA LNKMFCQLAK TCPVQLWVDS TPPPGTRVRA M AIYKQSQH ...String: MEEPQSDPSV EPPLSQETFS DLWKLLPENN VLSPLPSQAM DDLMLSPDDI EQWFTEDPGP DEAPRMPEAA PPVAPAPAAP TPAAPAPAP SWPLSSSVPS QKTYQGSYGF RLGFLHSGTA KSVTCTYSPA LNKMFCQLAK TCPVQLWVDS TPPPGTRVRA M AIYKQSQH MTEVVRRCPH HERCSDSDGL APPQHLIRVE GNLRVEYLDD RNTFRHSVVV PYEPPEVGSD CTTIHYNYMC NS SCMGGMN RRPILTIITL EDSSGNLLGR NSFEVRVCAC PGRDRRTEEE NLRKKGEPHH ELPPGSTKRA LPNNTSSSPQ PKK KPLDGE YFTLQIRGRE RFEMFRELNE ALELKDAQAG KEPGGSRAHS SHLKSKKGQS TSRHKKLMFK TEGPDSD UniProtKB: Cellular tumor antigen p53 |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.2 mg/mL |
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Buffer | pH: 7.5 Details: 20 mM HEPES (pH 7.5), 140 mM NaCl, 2 mM MgCl2, 2 mM CaCl2, 5 mM imidazole |
Grid | Model: Homemade / Material: SILICON NITRIDE Details: Cleaned microchips were coated with 25% Ni-NTA-containing lipid monolayers. Aliquots (2 microliters) of p53 fractions were added to the Ni-NTA-coated microchips and incubated for 2 minute at room temperature. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 298 K / Instrument: FEI VITROBOT MARK III Details: The microchip samples were loaded into a FEI Mark III Vitrobot and flash-frozen into liquid ethane.. |
Details | Sample was placed on Silicon nitride chips coated with Ni-NTA layers |
-Electron microscopy
Microscope | TFS TALOS F200C |
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Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 142000 |
Sample stage | Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER Cooling holder cryogen: NITROGEN |
Image recording | Film or detector model: FEI CETA (4k x 4k) / Number grids imaged: 10 / Number real images: 300 / Average exposure time: 1.0 sec. / Average electron dose: 5.0 e/Å2 |
Experimental equipment | Model: Tecnai F20 / Image courtesy: FEI Company |
-Image processing
Particle selection | Number selected: 8000 |
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Startup model | Type of model: NONE |
Initial angle assignment | Type: ANGULAR RECONSTITUTION / Software - Name: RELION |
Final 3D classification | Number classes: 1 / Avg.num./class: 8000 / Software - Name: RELION |
Final angle assignment | Type: ANGULAR RECONSTITUTION / Software - Name: RELION |
Final reconstruction | Number classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 5.0 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Details: validated in Rmeasure / Number images used: 8000 |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Overall B value: 50 |
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Output model | PDB-8f2i: |