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Yorodumi- PDB-6r1u: Structure of LSD2/NPAC-linker/nucleosome core particle complex: C... -
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-Basic information
Entry | Database: PDB / ID: 6r1u | ||||||
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Title | Structure of LSD2/NPAC-linker/nucleosome core particle complex: Class 2 | ||||||
Components |
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Keywords | GENE REGULATION / Histone demethylation / chromatin reader / flavoenzyme / epigenetics / evolution of protein function / molecular recognition. | ||||||
Function / homology | Function and homology information epigenetic programing of female pronucleus / genomic imprinting / [histone H3]-N6,N6-dimethyl-L-lysine4 FAD-dependent demethylase / FAD-dependent H3K4me/H3K4me3 demethylase activity / chromatin-protein adaptor activity / transcription elongation-coupled chromatin remodeling / nucleosome binding / histone demethylase activity / NR1H3 & NR1H2 regulate gene expression linked to cholesterol transport and efflux / methylated histone binding ...epigenetic programing of female pronucleus / genomic imprinting / [histone H3]-N6,N6-dimethyl-L-lysine4 FAD-dependent demethylase / FAD-dependent H3K4me/H3K4me3 demethylase activity / chromatin-protein adaptor activity / transcription elongation-coupled chromatin remodeling / nucleosome binding / histone demethylase activity / NR1H3 & NR1H2 regulate gene expression linked to cholesterol transport and efflux / methylated histone binding / transcription initiation-coupled chromatin remodeling / FAD binding / HDMs demethylate histones / structural constituent of chromatin / UCH proteinases / NAD binding / nucleosome / nucleosome assembly / flavin adenine dinucleotide binding / NADP binding / histone binding / oxidoreductase activity / chromatin remodeling / protein heterodimerization activity / chromatin binding / chromatin / DNA binding / zinc ion binding / nucleoplasm / nucleus / cytosol Similarity search - Function | ||||||
Biological species | Xenopus laevis (African clawed frog) Homo sapiens (human) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.36 Å | ||||||
Authors | Marabelli, C. / Pilotto, S. / Chittori, S. / Subramaniam, S. / Mattevi, A. | ||||||
Funding support | Italy, 1items
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Citation | Journal: Cell Rep / Year: 2019 Title: 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 |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6r1u.cif.gz | 450.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6r1u.ent.gz | 342.7 KB | Display | PDB format |
PDBx/mmJSON format | 6r1u.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6r1u_validation.pdf.gz | 929 KB | Display | wwPDB validaton report |
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Full document | 6r1u_full_validation.pdf.gz | 970.9 KB | Display | |
Data in XML | 6r1u_validation.xml.gz | 53 KB | Display | |
Data in CIF | 6r1u_validation.cif.gz | 83.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/r1/6r1u ftp://data.pdbj.org/pub/pdb/validation_reports/r1/6r1u | HTTPS FTP |
-Related structure data
Related structure data | 4705MC 4704C 4710C 4711C 4712C 6r1tC 6r25C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 7 types, 11 molecules AEBFCGDHKLM
#1: Protein | Mass: 15303.930 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: P84233 #2: Protein | Mass: 11263.231 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: P62799 #3: Protein | Mass: 13978.241 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h2aj, LOC494591 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: Q6AZJ8, UniProt: P06897*PLUS #4: Protein | Mass: 13524.752 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: P02281 #7: Protein | | Mass: 87051.547 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: KDM1B, AOF1, C6orf193, LSD2 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: Q8NB78, Oxidoreductases #8: Protein | | Mass: 13528.271 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GLYR1, HIBDL, NP60 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q49A26, Oxidoreductases #9: Protein | | Mass: 15305.945 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: XELAEV_18002543mg / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 / Variant (production host): pLysS / References: UniProt: A0A310TTQ1, UniProt: P84233*PLUS |
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-DNA chain , 2 types, 2 molecules IJ
#5: DNA chain | Mass: 45610.043 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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#6: DNA chain | Mass: 45138.770 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Non-polymers , 2 types, 4 molecules
#10: Chemical | ChemComp-FAD / |
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#11: Chemical |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
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Molecular weight | Value: 0.29 MDa / Experimental value: YES | ||||||||||||||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.87 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: LSD2/NPAC(214-225)/nucleosome was monodisperse (gel filtration peak isolation and concentration in buffer described. | ||||||||||||||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 3.05 nm / Nominal defocus min: 0.7 nm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 8 sec. / Electron dose: 1.25 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2078 |
Image scans | Movie frames/image: 40 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||
Particle selection | Num. of particles selected: 490558 | |||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||
3D reconstruction | Resolution: 4.36 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 72315 / Symmetry type: POINT | |||||||||||||||||||||||||
Atomic model building |
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Atomic model building |
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