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- PDB-5z3v: Structure of Snf2-nucleosome complex at shl-2 in ADP BeFx state -

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Basic information

Entry
Database: PDB / ID: 5z3v
TitleStructure of Snf2-nucleosome complex at shl-2 in ADP BeFx state
Components
  • (DNA (167-MER)) x 2
  • Histone H2A
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • Transcription regulatory protein SNF2
KeywordsSTRUCTURAL PROTEIN/HYDROLASE/DNA / complex / nucleosome / chromatin remodeling / gene regulation / STRUCTURAL PROTEIN-HYDROLASE-DNA complex
Function / homology
Function and homology information


positive regulation of cell adhesion involved in single-species biofilm formation / positive regulation of mating type switching / positive regulation of invasive growth in response to glucose limitation / aggrephagy / DNA strand invasion / rDNA binding / ATP-dependent chromatin remodeler activity / SWI/SNF complex / nucleosomal DNA binding / ATP-dependent activity, acting on DNA ...positive regulation of cell adhesion involved in single-species biofilm formation / positive regulation of mating type switching / positive regulation of invasive growth in response to glucose limitation / aggrephagy / DNA strand invasion / rDNA binding / ATP-dependent chromatin remodeler activity / SWI/SNF complex / nucleosomal DNA binding / ATP-dependent activity, acting on DNA / helicase activity / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / lysine-acetylated histone binding / DNA-templated DNA replication / structural constituent of chromatin / double-strand break repair / nucleosome / RNA polymerase II-specific DNA-binding transcription factor binding / hydrolase activity / chromatin remodeling / protein heterodimerization activity / chromatin / regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / DNA binding / nucleoplasm / ATP binding / nucleus
Similarity search - Function
Glutamine-Leucine-Glutamine, QLQ / QLQ / QLQ domain profile. / QLQ / Snf2, ATP coupling domain / Snf2-ATP coupling, chromatin remodelling complex / Snf2-ATP coupling, chromatin remodelling complex / DNA binding domain with preference for A/T rich regions / Helicase/SANT-associated domain / HSA domain profile. ...Glutamine-Leucine-Glutamine, QLQ / QLQ / QLQ domain profile. / QLQ / Snf2, ATP coupling domain / Snf2-ATP coupling, chromatin remodelling complex / Snf2-ATP coupling, chromatin remodelling complex / DNA binding domain with preference for A/T rich regions / Helicase/SANT-associated domain / HSA domain profile. / AT hook, DNA-binding motif / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Helicase conserved C-terminal domain / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Bromodomain, conserved site / Bromodomain signature. / helicase superfamily c-terminal domain / Bromodomain / Bromodomain profile. / bromo domain / Bromodomain / Bromodomain-like superfamily / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / BERYLLIUM TRIFLUORIDE ION / DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / Transcription regulatory protein SNF2 / Histone H4 / Histone H3.2 / Histone H2A
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Xenopus laevis (African clawed frog)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.22 Å
AuthorsLi, M. / Xia, X. / Liu, X. / Li, X. / Chen, Z.
CitationJournal: Nature / Year: 2019
Title: Mechanism of DNA translocation underlying chromatin remodelling by Snf2.
Authors: Meijing Li / Xian Xia / Yuanyuan Tian / Qi Jia / Xiaoyu Liu / Ying Lu / Ming Li / Xueming Li / Zhucheng Chen /
Abstract: Chromatin remodellers include diverse enzymes with distinct biological functions, but nucleosome-sliding activity appears to be a common theme. Among the remodelling enzymes, Snf2 serves as the ...Chromatin remodellers include diverse enzymes with distinct biological functions, but nucleosome-sliding activity appears to be a common theme. Among the remodelling enzymes, Snf2 serves as the prototype to study the action of this protein family. Snf2 and related enzymes share two conserved RecA-like lobes, which by themselves are able to couple ATP hydrolysis to chromatin remodelling. The mechanism by which these enzymes couple ATP hydrolysis to translocate the nucleosome along the DNA remains unclear. Here we report the structures of Saccharomyces cerevisiae Snf2 bound to the nucleosome in the presence of ADP and ADP-BeF. Snf2 in the ADP-bound state adopts an open conformation similar to that in the apo state, and induces a one-base-pair DNA bulge at superhelix location 2 (SHL2), with the tracking strand showing greater distortion than the guide strand. The DNA distortion propagates to the proximal end, leading to staggered translocation of the two strands. The binding of ADP-BeF triggers a closed conformation of the enzyme, resetting the nucleosome to a relaxed state. Snf2 shows altered interactions with the DNA in different nucleotide states, providing the structural basis for DNA translocation. Together, our findings suggest a fundamental mechanism for the DNA translocation that underlies chromatin remodelling.
History
DepositionJan 8, 2018Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 22, 2019Provider: repository / Type: Initial release
Revision 1.1Nov 6, 2019Group: Data collection / Other / Category: atom_sites / cell
Item: _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] ..._atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3] / _cell.Z_PDB
Revision 1.2Mar 27, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
O: Transcription regulatory protein SNF2
A: Histone H3.2
B: Histone H4
C: Histone H2A
D: Histone H2B 1.1
E: Histone H3.2
F: Histone H4
G: Histone H2A
H: Histone H2B 1.1
I: DNA (167-MER)
J: DNA (167-MER)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)297,56614
Polymers297,04911
Non-polymers5183
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 5 types, 9 molecules OAEBFCGDH

#1: Protein Transcription regulatory protein SNF2 / ATP-dependent helicase SNF2 / Regulatory protein GAM1 / Regulatory protein SWI2 / SWI/SNF complex ...ATP-dependent helicase SNF2 / Regulatory protein GAM1 / Regulatory protein SWI2 / SWI/SNF complex component SNF2 / Transcription factor TYE3


Mass: 85802.805 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: SNF2, GAM1, RIC1, SWI2, TYE3, YOR290C / Variant: ATCC 204508 / S288c / Production host: Escherichia coli (E. coli)
References: UniProt: P22082, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#2: Protein Histone H3.2


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) / References: UniProt: P84233
#3: Protein Histone H4 /


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) / References: UniProt: P62799
#4: Protein Histone H2A /


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) / References: UniProt: Q6AZJ8
#5: Protein Histone H2B 1.1 / H2B1.1


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) / References: UniProt: P02281

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DNA chain , 2 types, 2 molecules IJ

#6: DNA chain DNA (167-MER)


Mass: 51381.758 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#7: DNA chain DNA (167-MER)


Mass: 51723.949 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 3 types, 3 molecules

#8: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE / Adenosine diphosphate


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#9: Chemical ChemComp-BEF / BERYLLIUM TRIFLUORIDE ION


Mass: 66.007 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: BeF3
#10: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg

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Details

Sequence detailsAuthors state that the sample sequence of chain D/H is conformed by DNA sequencing and consistents ...Authors state that the sample sequence of chain D/H is conformed by DNA sequencing and consistents with the literature (PDB code 3MVD)

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: complex of snf2 and nucleosome in ADP BeFx state / Type: COMPLEX / Entity ID: #1-#7 / Source: MULTIPLE SOURCES
Molecular weightValue: 0.3 MDa / Experimental value: NO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenConc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationCryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 281 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 22500 X / Calibrated magnification: 22500 X / Nominal defocus max: 3200 nm / Nominal defocus min: 1800 nm / Calibrated defocus min: 1800 nm / Calibrated defocus max: 3200 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: BASIC
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 8 sec. / Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 4 / Num. of real images: 4247
Image scansWidth: 3838 / Height: 3710 / Movie frames/image: 32 / Used frames/image: 1-32

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Processing

SoftwareName: PHENIX / Version: 1.10.1_2155: / Classification: refinement
EM software
IDNameVersionCategory
4RELIONCTF correction
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
12RELIONclassification
13RELION23D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4.22 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 101525 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00317640
ELECTRON MICROSCOPYf_angle_d0.59325065
ELECTRON MICROSCOPYf_dihedral_angle_d20.4469661
ELECTRON MICROSCOPYf_chiral_restr0.0372854
ELECTRON MICROSCOPYf_plane_restr0.0052290

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