[English] 日本語
Yorodumi- PDB-6vz4: Cryo-EM structure of Sth1-Arp7-Arp9-Rtt102 bound to the nucleosom... -
+Open data
-Basic information
Entry | Database: PDB / ID: 6vz4 | ||||||
---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of Sth1-Arp7-Arp9-Rtt102 bound to the nucleosome in ADP Beryllium Fluoride state | ||||||
Components |
| ||||||
Keywords | MOTOR PROTEIN / Chromatin remodeling / Nucleosome / Gene Regulation | ||||||
Function / homology | Function and homology information RHO GTPases activate IQGAPs / RHO GTPases Activate WASPs and WAVEs / Regulation of actin dynamics for phagocytic cup formation / chromatin remodeling at centromere / Platelet degranulation / DNA translocase activity / RSC-type complex / SWI/SNF complex / nucleosome disassembly / ATP-dependent chromatin remodeler activity ...RHO GTPases activate IQGAPs / RHO GTPases Activate WASPs and WAVEs / Regulation of actin dynamics for phagocytic cup formation / chromatin remodeling at centromere / Platelet degranulation / DNA translocase activity / RSC-type complex / SWI/SNF complex / nucleosome disassembly / ATP-dependent chromatin remodeler activity / NuA4 histone acetyltransferase complex / chromosome, centromeric region / ATP-dependent activity, acting on DNA / cytoskeleton organization / histone reader activity / meiotic cell cycle / chromosome segregation / helicase activity / transcription elongation by RNA polymerase II / lysine-acetylated histone binding / base-excision repair / structural constituent of chromatin / nucleosome / double-strand break repair / nucleosome assembly / chromatin organization / DNA helicase / chromatin remodeling / protein heterodimerization activity / chromatin binding / regulation of DNA-templated transcription / chromatin / regulation of transcription by RNA polymerase II / structural molecule activity / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / ATP binding / nucleus Similarity search - Function | ||||||
Biological species | Xenopus laevis (African clawed frog) synthetic construct (others) Saccharomyces cerevisiae (brewer's yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||
Authors | Leschziner, A.E. / Baker, R.W. | ||||||
Funding support | United States, 1items
| ||||||
Citation | Journal: Nat Struct Mol Biol / Year: 2021 Title: Structural insights into assembly and function of the RSC chromatin remodeling complex. Authors: Richard W Baker / Janice M Reimer / Peter J Carman / Bengi Turegun / Tsutomu Arakawa / Roberto Dominguez / Andres E Leschziner / Abstract: SWI/SNF chromatin remodelers modify the position and spacing of nucleosomes and, in humans, are linked to cancer. To provide insights into the assembly and regulation of this protein family, we ...SWI/SNF chromatin remodelers modify the position and spacing of nucleosomes and, in humans, are linked to cancer. To provide insights into the assembly and regulation of this protein family, we focused on a subcomplex of the Saccharomyces cerevisiae RSC comprising its ATPase (Sth1), the essential actin-related proteins (ARPs) Arp7 and Arp9 and the ARP-binding protein Rtt102. Cryo-EM and biochemical analyses of this subcomplex shows that ARP binding induces a helical conformation in the helicase-SANT-associated (HSA) domain of Sth1. Surprisingly, the ARP module is rotated 120° relative to the full RSC about a pivot point previously identified as a regulatory hub in Sth1, suggesting that large conformational changes are part of Sth1 regulation and RSC assembly. We also show that a conserved interaction between Sth1 and the nucleosome acidic patch enhances remodeling. As some cancer-associated mutations dysregulate rather than inactivate SWI/SNF remodelers, our insights into RSC complex regulation advance a mechanistic understanding of chromatin remodeling in disease states. | ||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6vz4.cif.gz | 4.7 MB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb6vz4.ent.gz | 4.1 MB | Display | PDB format |
PDBx/mmJSON format | 6vz4.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6vz4_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 6vz4_full_validation.pdf.gz | 1.9 MB | Display | |
Data in XML | 6vz4_validation.xml.gz | 465.8 KB | Display | |
Data in CIF | 6vz4_validation.cif.gz | 754.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/vz/6vz4 ftp://data.pdbj.org/pub/pdb/validation_reports/vz/6vz4 | HTTPS FTP |
-Related structure data
Related structure data | 21484MC 6vzgC M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
Number of models | 10 |
-Components
-Protein , 8 types, 12 molecules AEBFCGDHKLMN
#1: Protein | Mass: 15407.075 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h3g, h3c8, H3l / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: Q92133 #2: Protein | Mass: 11394.426 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 BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: P62799 #3: Protein | Mass: 14109.436 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h2aj, LOC494591, XELAEV_18003602mg / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: Q6AZJ8, UniProt: P06897*PLUS #4: Protein | Mass: 13810.048 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: H2B, XELAEV_18028547mg / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: Q92130, UniProt: P02281*PLUS #7: Protein | | Mass: 95105.297 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Strain: ATCC 204508 / S288c / Gene: STH1, NPS1, YIL126W / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: P32597, DNA helicase #8: Protein | | Mass: 53863.016 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Strain: ATCC 204508 / S288c / Gene: ARP7, SWP61, YPR034W, YP9367.14 / Production host: Escherichia coli (E. coli) / References: UniProt: Q12406 #9: Protein | | Mass: 53131.930 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: ARP9 / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: Q05123 #10: Protein | | Mass: 17817.615 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Strain: ATCC 204508 / S288c / Gene: RTT102, YGR275W, G9378 / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 Rosetta / References: UniProt: P53330 |
---|
-DNA chain , 2 types, 2 molecules IJ
#5: DNA chain | Mass: 56840.203 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli) / Strain (production host): DH5 alpha |
---|---|
#6: DNA chain | Mass: 57400.555 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli) / Strain (production host): DH5 alpha |
-Non-polymers , 4 types, 4 molecules
#11: Chemical | ChemComp-MG / |
---|---|
#12: Chemical | ChemComp-ADP / |
#13: Chemical | ChemComp-BEF / |
#14: Chemical | ChemComp-ATP / |
-Details
Has ligand of interest | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component |
| ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Molecular weight | Value: 0.44 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) |
| ||||||||||||||||||||||||||||||
Source (recombinant) |
| ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Sample was crosslinked using the GRAFIX protocol | ||||||||||||||||||||||||||||||
Specimen support | Details: Glow discharge for 30 seconds at 25 mAmp / Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K / Details: 4 second blot time, blot force 20 |
-Electron microscopy imaging
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 36000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN |
Image recording | Average exposure time: 7 sec. / Electron dose: 53 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
Image scans | Movie frames/image: 45 |
-Processing
EM software |
| ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 293940 / Symmetry type: POINT | ||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL Details: Initial model docking was done in Chimera. Phenix.real_space_refine was used to refine the nucleosome model. Sth1-Arp7-Arp9-Rtt102 were refined in Rosetta and the top ten models were deposited. | ||||||||||||||||||||||||||||
Atomic model building |
|