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Yorodumi- EMDB-4710: Structure of LSD2/NPAC-linker/nucleosome core particle complex: C... -
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Basic information
| Entry | Database: EMDB / ID: EMD-4710 | |||||||||
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| Title | Structure of LSD2/NPAC-linker/nucleosome core particle complex: Class 3 | |||||||||
Map data | LSD2/NPAC(214-225)/nucleosome: class 3 | |||||||||
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Keywords | Histone demethylation / chromatin reader / flavoenzyme / epigenetics / evolution of protein function / molecular recognition. / GENE REGULATION | |||||||||
| Function / homology | Function and homology informationepigenetic programing of female pronucleus / [histone H3]-N6,N6-dimethyl-L-lysine4 FAD-dependent demethylase / FAD-dependent H3K4me/H3K4me3 demethylase activity / genomic imprinting / chromatin-protein adaptor activity / transcription elongation-coupled chromatin remodeling / histone demethylase activity / nucleosome binding / NR1H3 & NR1H2 regulate gene expression linked to cholesterol transport and efflux / FAD binding ...epigenetic programing of female pronucleus / [histone H3]-N6,N6-dimethyl-L-lysine4 FAD-dependent demethylase / FAD-dependent H3K4me/H3K4me3 demethylase activity / genomic imprinting / chromatin-protein adaptor activity / transcription elongation-coupled chromatin remodeling / histone demethylase activity / nucleosome binding / NR1H3 & NR1H2 regulate gene expression linked to cholesterol transport and efflux / FAD binding / transcription initiation-coupled chromatin remodeling / HDMs demethylate histones / NAD binding / structural constituent of chromatin / UCH proteinases / nucleosome / heterochromatin formation / NADP binding / nucleosome assembly / histone binding / oxidoreductase activity / protein heterodimerization activity / chromatin binding / chromatin / DNA binding / zinc ion binding / nucleoplasm / nucleus / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / synthetic construct (others) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 4.61 Å | |||||||||
Authors | Marabelli C / Pilotto S | |||||||||
| Funding support | Italy, 1 items
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Citation | Journal: Cell Rep / Year: 2019Title: A Tail-Based Mechanism Drives Nucleosome Demethylation by the LSD2/NPAC Multimeric Complex. Authors: Chiara Marabelli / Biagina Marrocco / Simona Pilotto / Sagar Chittori / Sarah Picaud / Sara Marchese / Giuseppe Ciossani / Federico Forneris / Panagis Filippakopoulos / Guy Schoehn / Daniela ...Authors: Chiara Marabelli / Biagina Marrocco / Simona Pilotto / Sagar Chittori / Sarah Picaud / Sara Marchese / Giuseppe Ciossani / Federico Forneris / Panagis Filippakopoulos / Guy Schoehn / Daniela Rhodes / Sriram Subramaniam / Andrea Mattevi / ![]() Abstract: LSD1 and LSD2 are homologous histone demethylases with opposite biological outcomes related to chromatin silencing and transcription elongation, respectively. Unlike LSD1, LSD2 nucleosome-demethylase ...LSD1 and LSD2 are homologous histone demethylases with opposite biological outcomes related to chromatin silencing and transcription elongation, respectively. Unlike LSD1, LSD2 nucleosome-demethylase activity relies on a specific linker peptide from the multidomain protein NPAC. We used single-particle cryoelectron microscopy (cryo-EM), in combination with kinetic and mutational analysis, to analyze the mechanisms underlying the function of the human LSD2/NPAC-linker/nucleosome complex. Weak interactions between LSD2 and DNA enable multiple binding modes for the association of the demethylase to the nucleosome. The demethylase thereby captures mono- and dimethyl Lys4 of the H3 tail to afford histone demethylation. Our studies also establish that the dehydrogenase domain of NPAC serves as a catalytically inert oligomerization module. While LSD1/CoREST forms a nucleosome docking platform at silenced gene promoters, LSD2/NPAC is a multifunctional enzyme complex with flexible linkers, tailored for rapid chromatin modification, in conjunction with the advance of the RNA polymerase on actively transcribed genes. | |||||||||
| History |
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_4710.map.gz | 62.3 MB | EMDB map data format | |
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| Header (meta data) | emd-4710-v30.xml emd-4710.xml | 32.1 KB 32.1 KB | Display Display | EMDB header |
| Images | emd_4710.png | 178 KB | ||
| Filedesc metadata | emd-4710.cif.gz | 8.9 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4710 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4710 | HTTPS FTP |
-Validation report
| Summary document | emd_4710_validation.pdf.gz | 388.2 KB | Display | EMDB validaton report |
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| Full document | emd_4710_full_validation.pdf.gz | 387.7 KB | Display | |
| Data in XML | emd_4710_validation.xml.gz | 6.4 KB | Display | |
| Data in CIF | emd_4710_validation.cif.gz | 7.4 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4710 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4710 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6r25MC ![]() 4704C ![]() 4705C ![]() 4711C ![]() 4712C ![]() 6r1tC ![]() 6r1uC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_4710.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | LSD2/NPAC(214-225)/nucleosome: class 3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : LSD2/NPAC(214-225)/nucleosome
+Supramolecule #1: LSD2/NPAC(214-225)/nucleosome
+Supramolecule #2: histones
+Supramolecule #3: NPAC
+Supramolecule #4: DNA
+Supramolecule #5: Lysine-specific histone demethylase 1B
+Macromolecule #1: Lysine-specific histone demethylase 1B
+Macromolecule #2: NPAC
+Macromolecule #3: Histone H3
+Macromolecule #4: Histone H3
+Macromolecule #5: H4
+Macromolecule #6: Histone H2A
+Macromolecule #7: H2B
+Macromolecule #8: DNA (147-MER)
+Macromolecule #9: DNA (147-MER)
+Macromolecule #10: FLAVIN-ADENINE DINUCLEOTIDE
+Macromolecule #11: ZINC ION
+Macromolecule #12: water
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.87 mg/mL | |||||||||
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| Buffer | pH: 7.5 Component:
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| Vitrification | Cryogen name: ETHANE | |||||||||
| Details | LSD2/NPAC(214-225)/nucleosome was monodisperse (gel filtration peak isolation and concentration in buffer described. |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 2078 / Average exposure time: 8.0 sec. / Average electron dose: 1.25 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 0.0030499999999999998 µm / Nominal defocus min: 0.0007 µm / Nominal magnification: 130000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Initial model | PDB ID: Chain - Source name: PDB / Chain - Initial model type: experimental model |
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| Refinement | Space: REAL / Protocol: RIGID BODY FIT |
| Output model | ![]() PDB-6r25: |
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
Italy, 1 items
Citation

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