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Open data
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Basic information
Entry | Database: PDB / ID: 8qkv | ||||||||||||
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Title | SWR1-nucleosome complex in configuration 2 | ||||||||||||
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![]() | DNA BINDING PROTEIN / Chromatin remodelling complex / nucleosome / protein-DNA complex | ||||||||||||
Function / homology | ![]() sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / HATs acetylate histones / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / R2TP complex / Assembly of the ORC complex at the origin of replication ...sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / HATs acetylate histones / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / R2TP complex / Assembly of the ORC complex at the origin of replication / HDACs deacetylate histones / Swr1 complex / protein targeting to vacuole / Ino80 complex / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / box C/D snoRNP assembly / Oxidative Stress Induced Senescence / replication fork protection complex / RMTs methylate histone arginines / postreplication repair / SUMOylation of chromatin organization proteins / recombinational repair / 3'-5' DNA helicase activity / NuA4 histone acetyltransferase complex / RNA Polymerase I Promoter Escape / positive regulation of transcription by RNA polymerase I / nucleolar large rRNA transcription by RNA polymerase I / Estrogen-dependent gene expression / rRNA transcription / intracellular copper ion homeostasis / Ub-specific processing proteases / DNA helicase activity / CENP-A containing nucleosome / nucleosome binding / nuclear periphery / aerobic respiration / heterochromatin formation / nucleosome assembly / rRNA processing / structural constituent of chromatin / nucleosome / chromatin organization / 5'-3' DNA helicase activity / DNA helicase / molecular adaptor activity / histone binding / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / protein stabilization / chromatin remodeling / protein heterodimerization activity / chromatin extrusion motor activity / ATP-dependent H2AZ histone chaperone activity / ATP-dependent H3-H4 histone complex chaperone activity / cohesin loader activity / DNA clamp loader activity / DNA repair / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / chromatin / structural molecule activity / negative regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / ATP binding / identical protein binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() synthetic construct (others) | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.7 Å | ||||||||||||
![]() | Jalal, A.S.B. / Wigley, D.B. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Nucleosome flipping drives kinetic proofreading and processivity by SWR1. Authors: Paul Girvan / Adam S B Jalal / Elizabeth A McCormack / Michael T Skehan / Carol L Knight / Dale B Wigley / David S Rueda / ![]() Abstract: The yeast SWR1 complex catalyses the exchange of histone H2A-H2B dimers in nucleosomes, with Htz1-H2B dimers. Here we used single-molecule analysis to demonstrate two-step double exchange of the two ...The yeast SWR1 complex catalyses the exchange of histone H2A-H2B dimers in nucleosomes, with Htz1-H2B dimers. Here we used single-molecule analysis to demonstrate two-step double exchange of the two H2A-H2B dimers in a canonical yeast nucleosome with Htz1-H2B dimers, and showed that double exchange can be processive without release of the nucleosome from the SWR1 complex. Further analysis showed that bound nucleosomes flip between two states, with each presenting a different face, and hence histone dimer, to SWR1. The bound dwell time is longer when an H2A-H2B dimer is presented for exchange than when presented with an Htz1-H2B dimer. A hexasome intermediate in the reaction is bound to the SWR1 complex in a single orientation with the 'empty' site presented for dimer insertion. Cryo-electron microscopy analysis revealed different populations of complexes showing nucleosomes caught 'flipping' between different conformations without release, each placing a different dimer into position for exchange, with the Swc2 subunit having a key role in this process. Together, the data reveal a processive mechanism for double dimer exchange that explains how SWR1 can 'proofread' the dimer identities within nucleosomes. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.7 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 151.1 KB | Display | |
Data in CIF | ![]() | 235 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 18472MC ![]() 8qkuC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 6 types, 10 molecules BACDFEGHMR
#1: Protein | Mass: 15405.032 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 11395.390 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #3: Protein | Mass: 17064.666 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #4: Protein | Mass: 14280.362 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #8: Protein | | Mass: 174792.969 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #9: Protein | | Mass: 50100.582 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-DNA chain , 2 types, 2 molecules IJ
#5: DNA chain | Mass: 59686.957 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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#6: DNA chain | Mass: 60110.285 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Vacuolar protein sorting-associated protein ... , 2 types, 2 molecules ZS
#7: Protein | Mass: 21970.316 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#10: Protein | Mass: 32073.479 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-RuvB-like protein ... , 2 types, 6 molecules TVXUWY
#11: Protein | Mass: 50516.941 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #12: Protein | Mass: 51673.488 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Non-polymers , 4 types, 20 molecules 






#13: Chemical | ChemComp-ADP / #14: Chemical | #15: Chemical | ChemComp-MG / #16: Chemical | |
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-Details
Has ligand of interest | Y |
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Has protein modification | N |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: SWR1-nucleosome complex / Type: COMPLEX / Entity ID: #1-#12 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2100 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 4.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 33595 / Symmetry type: POINT | ||||||||||||||||||||||||
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