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Open data
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Basic information
| Entry | Database: PDB / ID: 8ytc | |||||||||||||||||||||
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| Title | PML-RBCC dimer | |||||||||||||||||||||
Components | Protein PML | |||||||||||||||||||||
Keywords | NUCLEAR PROTEIN / PML nuclear body / RBCC dimer | |||||||||||||||||||||
| Function / homology | Function and homology informationregulation of calcium ion transport into cytosol / ubiquitin-like protein ligase activity / negative regulation of translation in response to oxidative stress / positive regulation of protein localization to chromosome, telomeric region / suppression of viral release by host / PML body organization / SUMO binding / positive regulation of apoptotic process involved in mammary gland involution / SMAD protein signal transduction / fibroblast migration ...regulation of calcium ion transport into cytosol / ubiquitin-like protein ligase activity / negative regulation of translation in response to oxidative stress / positive regulation of protein localization to chromosome, telomeric region / suppression of viral release by host / PML body organization / SUMO binding / positive regulation of apoptotic process involved in mammary gland involution / SMAD protein signal transduction / fibroblast migration / myeloid cell differentiation / protein-containing complex localization / maintenance of protein location in nucleus / endoplasmic reticulum calcium ion homeostasis / regulation of double-strand break repair / branching involved in mammary gland duct morphogenesis / oncogene-induced cell senescence / negative regulation of mitotic cell cycle / Transferases; Acyltransferases; Aminoacyltransferases / SUMO transferase activity / Regulation of RUNX1 Expression and Activity / positive regulation of extrinsic apoptotic signaling pathway / cobalt ion binding / intrinsic apoptotic signaling pathway in response to oxidative stress / negative regulation of interleukin-1 beta production / entrainment of circadian clock by photoperiod / SUMOylation of ubiquitinylation proteins / SMAD binding / negative regulation of telomere maintenance via telomerase / positive regulation of telomere maintenance / protein sumoylation / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / cell fate commitment / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / regulation of cell adhesion / SUMOylation of DNA damage response and repair proteins / protein targeting / response to UV / retinoic acid receptor signaling pathway / Regulation of TP53 Activity through Acetylation / extrinsic apoptotic signaling pathway / positive regulation of defense response to virus by host / response to cytokine / transforming growth factor beta receptor signaling pathway / cellular response to interleukin-4 / Regulation of PTEN localization / negative regulation of angiogenesis / cellular response to leukemia inhibitory factor / response to gamma radiation / DNA damage response, signal transduction by p53 class mediator / circadian regulation of gene expression / negative regulation of cell growth / regulation of circadian rhythm / PML body / nuclear matrix / positive regulation of fibroblast proliferation / Transcriptional regulation of granulopoiesis / intrinsic apoptotic signaling pathway in response to DNA damage / Interferon gamma signaling / protein import into nucleus / HCMV Early Events / cellular senescence / protein-containing complex assembly / early endosome membrane / nuclear membrane / molecular adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / response to hypoxia / transcription coactivator activity / chromosome, telomeric region / regulation of cell cycle / protein stabilization / chromatin remodeling / protein heterodimerization activity / negative regulation of cell population proliferation / innate immune response / negative regulation of DNA-templated transcription / apoptotic process / ubiquitin protein ligase binding / regulation of DNA-templated transcription / endoplasmic reticulum membrane / nucleolus / protein homodimerization activity / DNA binding / zinc ion binding / nucleoplasm / identical protein binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.3 Å | |||||||||||||||||||||
Authors | Tan, Y. / Li, J. / Zhang, S. / Zhang, Y. / Cong, Y. / Meng, G. | |||||||||||||||||||||
| Funding support | China, 1items
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Citation | Journal: Cell Discov / Year: 2024Title: Cryo-EM structure of PML RBCC dimer reveals CC-mediated octopus-like nuclear body assembly mechanism. Authors: Yangxia Tan / Jiawei Li / Shiyan Zhang / Yonglei Zhang / Zhiyi Zhuo / Xiaodan Ma / Yue Yin / Yanling Jiang / Yao Cong / Guoyu Meng / ![]() Abstract: Promyelocytic leukemia protein (PML) nuclear bodies (NBs) are essential in regulating tumor suppression, antiviral response, inflammation, metabolism, aging, and other important life processes. The ...Promyelocytic leukemia protein (PML) nuclear bodies (NBs) are essential in regulating tumor suppression, antiviral response, inflammation, metabolism, aging, and other important life processes. The re-assembly of PML NBs might lead to an ~100% cure of acute promyelocytic leukemia. However, until now, the molecular mechanism underpinning PML NB biogenesis remains elusive due to the lack of structural information. In this study, we present the cryo-electron microscopy (cryo-EM) structure of the PML dimer at an overall resolution of 5.3 Å, encompassing the RING, B-box1/2 and part of the coiled-coil (RBCC) domains. The integrated approach, combining crosslinking and mass spectrometry (XL-MS) and functional analyses, enabled us to observe a unique folding event within the RBCC domains. The RING and B-box1/2 domains fold around the α3 helix, and the α6 helix serves as a pivotal interface for PML dimerization. More importantly, further characterizations of the cryo-EM structure in conjugation with AlphaFold2 prediction, XL-MS, and NB formation assays, help unveil an unprecedented octopus-like mechanism in NB assembly, wherein each CC helix of a PML dimer (PML dimer A) interacts with a CC helix from a neighboring PML dimer (PML dimer B) in an anti-parallel configuration, ultimately leading to the formation of a 2 µm membrane-less subcellular organelle. | |||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ytc.cif.gz | 69.7 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ytc.ent.gz | 49.8 KB | Display | PDB format |
| PDBx/mmJSON format | 8ytc.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/yt/8ytc ftp://data.pdbj.org/pub/pdb/validation_reports/yt/8ytc | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 39571MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 23824.133 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PML, MYL, PP8675, RNF71, TRIM19 / Production host: ![]() References: UniProt: P29590, Transferases; Acyltransferases; Aminoacyltransferases Has protein modification | N | |
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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 |
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Sample preparation
| Component | Name: Promyelocytic leukemia protein / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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| Microscopy | Model: FEI POLARA 300 |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 5.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 307216 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
China, 1items
Citation
PDBj
















FIELD EMISSION GUN