+
Open data
-
Basic information
Entry | ![]() | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | SWR1 lacking Swc5 subunit in complex with hexasome | ||||||||||||
![]() | |||||||||||||
![]() |
| ||||||||||||
![]() | Chromatin remodelling complex / hexasome / DNA BINDING PROTEIN | ||||||||||||
Function / homology | ![]() sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / TTT Hsp90 cochaperone complex / 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 / Assembly of the ORC complex at the origin of replication ...sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / TTT Hsp90 cochaperone complex / 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 / Assembly of the ORC complex at the origin of replication / R2TP complex / HDACs deacetylate histones / protein targeting to vacuole / Swr1 complex / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Ino80 complex / Oxidative Stress Induced Senescence / RMTs methylate histone arginines / postreplication repair / SUMOylation of chromatin organization proteins / box C/D snoRNP assembly / 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 / nucleosome binding / CENP-A containing nucleosome / DNA helicase activity / nuclear periphery / aerobic respiration / helicase activity / rRNA processing / structural constituent of chromatin / nucleosome / heterochromatin formation / nucleosome assembly / chromatin organization / 5'-3' DNA helicase activity / histone binding / molecular adaptor activity / DNA helicase / protein stabilization / chromatin remodeling / protein heterodimerization activity / DNA repair / regulation of transcription by RNA polymerase II / regulation of DNA-templated transcription / chromatin / structural molecule activity / negative regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / zinc ion binding / ATP binding / identical protein binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||||||||
![]() | Jalal ASB / Wigley DB | ||||||||||||
Funding support | ![]()
| ||||||||||||
![]() | ![]() Title: Stabilization of the hexasome intermediate during histone exchange by yeast SWR1 complex. Authors: Adam S B Jalal / Paul Girvan / Eugene Y D Chua / Lexin Liu / Shijie Wang / Elizabeth A McCormack / Michael T Skehan / Carol L Knight / David S Rueda / Dale B Wigley / ![]() Abstract: The yeast SWR1 complex catalyzes the exchange of histone H2A/H2B dimers in nucleosomes with Htz1/H2B dimers. We use cryoelectron microscopy to determine the structure of an enzyme-bound hexasome ...The yeast SWR1 complex catalyzes the exchange of histone H2A/H2B dimers in nucleosomes with Htz1/H2B dimers. We use cryoelectron microscopy to determine the structure of an enzyme-bound hexasome intermediate in the reaction pathway of histone exchange, in which an H2A/H2B dimer has been extracted from a nucleosome prior to the insertion of a dimer comprising Htz1/H2B. The structure reveals a key role for the Swc5 subunit in stabilizing the unwrapping of DNA from the histone core of the hexasome. By engineering a crosslink between an Htz1/H2B dimer and its chaperone protein Chz1, we show that this blocks histone exchange by SWR1 but allows the incoming chaperone-dimer complex to insert into the hexasome. We use this reagent to trap an SWR1/hexasome complex with an incoming Htz1/H2B dimer that shows how the reaction progresses to the next step. Taken together the structures reveal insights into the mechanism of histone exchange by SWR1 complex. | ||||||||||||
History |
|
-
Structure visualization
-
Downloads & links
-EMDB archive
Map data | ![]() | 29.5 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 33.7 KB 33.7 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 17.1 KB | Display | ![]() |
Images | ![]() | 134.1 KB | ||
Filedesc metadata | ![]() | 10.1 KB | ||
Others | ![]() ![]() | 339.7 MB 339.8 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 932.5 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 932.1 KB | Display | |
Data in XML | ![]() | 24.6 KB | Display | |
Data in CIF | ![]() | 32.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9fbwMC ![]() 8qyvC ![]() 8qz0C M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||
Density |
| ||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
|
-Supplemental data
-
Sample components
+Entire : SWR1 lacking Swc5 subunit in complex with hexasome
+Supramolecule #1: SWR1 lacking Swc5 subunit in complex with hexasome
+Macromolecule #1: Histone H3
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A.1
+Macromolecule #4: Histone H2B.1
+Macromolecule #7: Helicase SWR1
+Macromolecule #8: Actin-like protein ARP6
+Macromolecule #9: Vacuolar protein sorting-associated protein 71
+Macromolecule #10: RuvB-like protein 1
+Macromolecule #11: RuvB-like protein 2
+Macromolecule #12: Vacuolar protein sorting-associated protein 72
+Macromolecule #5: DNA (112-MER)
+Macromolecule #6: DNA (112-MER)
+Macromolecule #13: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #14: BERYLLIUM TRIFLUORIDE ION
+Macromolecule #15: MAGNESIUM ION
+Macromolecule #16: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.5 |
---|---|
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
Microscope | TFS KRIOS |
---|---|
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 52.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.9000000000000001 µm / Nominal defocus min: 0.7000000000000001 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |