+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-34431 | |||||||||||||||
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Title | Cryo-EM structure of BAP1-ASXL1 bound to chromatosome | |||||||||||||||
Map data | ||||||||||||||||
Sample |
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Keywords | nucleosome / histone deubiquitination / chromatin / GENE REGULATION | |||||||||||||||
Function / homology | Function and homology information thrombocyte differentiation / nucleate erythrocyte differentiation / negative regulation of peroxisome proliferator activated receptor signaling pathway / PR-DUB complex / platelet morphogenesis / leukocyte proliferation / histone H2A deubiquitinase activity / positive regulation of retinoic acid receptor signaling pathway / macrophage homeostasis / lung saccule development ...thrombocyte differentiation / nucleate erythrocyte differentiation / negative regulation of peroxisome proliferator activated receptor signaling pathway / PR-DUB complex / platelet morphogenesis / leukocyte proliferation / histone H2A deubiquitinase activity / positive regulation of retinoic acid receptor signaling pathway / macrophage homeostasis / lung saccule development / podocyte development / neutrophil differentiation / regulation of kidney size / myeloid cell apoptotic process / hematopoietic stem cell homeostasis / monoubiquitinated protein deubiquitination / common myeloid progenitor cell proliferation / negative regulation of DNA recombination / tissue homeostasis / protein K48-linked deubiquitination / nuclear retinoic acid receptor binding / Apoptosis induced DNA fragmentation / peroxisome proliferator activated receptor binding / hypothalamus gonadotrophin-releasing hormone neuron development / bone marrow development / chromosome condensation / female meiosis I / positive regulation of protein monoubiquitination / positive regulation of protein targeting to mitochondrion / mitochondrion transport along microtubule / fat pad development / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / female gonad development / negative regulation of fat cell differentiation / seminiferous tubule development / erythrocyte maturation / male meiosis I / regulation of cytokine production involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / hemopoiesis / homeostasis of number of cells / protein deubiquitination / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / regulation of neuron apoptotic process / heterochromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / heart morphogenesis / CENP-A containing nucleosome / response to retinoic acid / regulation of proteasomal protein catabolic process / Packaging Of Telomere Ends / energy homeostasis / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Maturation of protein E / Maturation of protein E / Deposition of new CENPA-containing nucleosomes at the centromere / ER Quality Control Compartment (ERQC) / nucleosomal DNA binding / Myoclonic epilepsy of Lafora / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Glycogen synthesis / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / TICAM1,TRAF6-dependent induction of TAK1 complex / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Inhibition of DNA recombination at telomere / Negative regulation of FLT3 / Constitutive Signaling by NOTCH1 HD Domain Mutants / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / TICAM1-dependent activation of IRF3/IRF7 / NOTCH2 Activation and Transmission of Signal to the Nucleus / Regulation of FZD by ubiquitination / APC/C:Cdc20 mediated degradation of Cyclin B / telomere organization / p75NTR recruits signalling complexes / VLDLR internalisation and degradation / Meiotic synapsis / Downregulation of ERBB4 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / APC-Cdc20 mediated degradation of Nek2A / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / NF-kB is activated and signals survival / Regulation of pyruvate metabolism / epigenetic regulation of gene expression Similarity search - Function | |||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||||||||
Authors | Ge W / Yu C / Xu RM | |||||||||||||||
Funding support | China, 4 items
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Citation | Journal: Nature / Year: 2023 Title: Basis of the H2AK119 specificity of the Polycomb repressive deubiquitinase. Authors: Weiran Ge / Cong Yu / Jingjing Li / Zhenyu Yu / Xiaorong Li / Yan Zhang / Chao-Pei Liu / Yingfeng Li / Changlin Tian / Xinzheng Zhang / Guohong Li / Bing Zhu / Rui-Ming Xu / Abstract: Repression of gene expression by protein complexes of the Polycomb group is a fundamental mechanism that governs embryonic development and cell-type specification. The Polycomb repressive ...Repression of gene expression by protein complexes of the Polycomb group is a fundamental mechanism that governs embryonic development and cell-type specification. The Polycomb repressive deubiquitinase (PR-DUB) complex removes the ubiquitin moiety from monoubiquitinated histone H2A K119 (H2AK119ub1) on the nucleosome, counteracting the ubiquitin E3 ligase activity of Polycomb repressive complex 1 (PRC1) to facilitate the correct silencing of genes by Polycomb proteins and safeguard active genes from inadvertent silencing by PRC1 (refs. ). The intricate biological function of PR-DUB requires accurate targeting of H2AK119ub1, but PR-DUB can deubiquitinate monoubiquitinated free histones and peptide substrates indiscriminately; the basis for its exquisite nucleosome-dependent substrate specificity therefore remains unclear. Here we report the cryo-electron microscopy structure of human PR-DUB, composed of BAP1 and ASXL1, in complex with the chromatosome. We find that ASXL1 directs the binding of the positively charged C-terminal extension of BAP1 to nucleosomal DNA and histones H3-H4 near the dyad, an addition to its role in forming the ubiquitin-binding cleft. Furthermore, a conserved loop segment of the catalytic domain of BAP1 is situated near the H2A-H2B acidic patch. This distinct nucleosome-binding mode displaces the C-terminal tail of H2A from the nucleosome surface, and endows PR-DUB with the specificity for H2AK119ub1. | |||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_34431.map.gz | 79.4 MB | EMDB map data format | |
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Header (meta data) | emd-34431-v30.xml emd-34431.xml | 28.7 KB 28.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_34431_fsc.xml | 11.4 KB | Display | FSC data file |
Images | emd_34431.png | 90.1 KB | ||
Masks | emd_34431_msk_1.map | 166.4 MB | Mask map | |
Filedesc metadata | emd-34431.cif.gz | 7.8 KB | ||
Others | emd_34431_half_map_1.map.gz emd_34431_half_map_2.map.gz | 154.7 MB 154.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-34431 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-34431 | HTTPS FTP |
-Validation report
Summary document | emd_34431_validation.pdf.gz | 637.3 KB | Display | EMDB validaton report |
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Full document | emd_34431_full_validation.pdf.gz | 636.8 KB | Display | |
Data in XML | emd_34431_validation.xml.gz | 19.7 KB | Display | |
Data in CIF | emd_34431_validation.cif.gz | 26.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34431 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34431 | HTTPS FTP |
-Related structure data
Related structure data | 8h1tMC C: citing same article (ref.) M: atomic model generated by this map |
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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_34431.map.gz / Format: CCP4 / Size: 166.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_34431_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_34431_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_34431_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Cryo-EM structure of BAP1-ASXL1 bound to chromatosome
+Supramolecule #1: Cryo-EM structure of BAP1-ASXL1 bound to chromatosome
+Macromolecule #1: Histone H3.1
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A type 1-D
+Macromolecule #4: Histone H2B type 2-E
+Macromolecule #7: Histone H1.4
+Macromolecule #8: Ubiquitin carboxyl-terminal hydrolase BAP1
+Macromolecule #9: Ubiquitin
+Macromolecule #10: Polycomb group protein ASXL1
+Macromolecule #5: DNA (187-MER)
+Macromolecule #6: DNA (187-MER)
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Grid | Model: Quantifoil R2/1 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. / Pretreatment - Atmosphere: OTHER |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 284 K |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL |
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Output model | PDB-8h1t: |