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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-11102 | |||||||||
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| Title | HDAC-PC-Nuc | |||||||||
Map data | HDAC-PC-Nuc | |||||||||
Sample |
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Keywords | Protein complex / GENE REGULATION | |||||||||
| Function / homology | Function and homology informationHDA1 complex / : / HSF1 activation / HDACs deacetylate histones / nucleosome array spacer activity / histone deacetylase activity, hydrolytic mechanism / histone deacetylase / regulatory ncRNA-mediated gene silencing / SUMOylation of chromatin organization proteins / histone deacetylase complex ...HDA1 complex / : / HSF1 activation / HDACs deacetylate histones / nucleosome array spacer activity / histone deacetylase activity, hydrolytic mechanism / histone deacetylase / regulatory ncRNA-mediated gene silencing / SUMOylation of chromatin organization proteins / histone deacetylase complex / epigenetic regulation of gene expression / chromosome segregation / structural constituent of chromatin / nucleosome / heterochromatin formation / nucleosome assembly / chromatin organization / protein heterodimerization activity / chromatin binding / regulation of transcription by RNA polymerase II / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / DNA binding / nucleoplasm / identical protein binding / nucleus / cytosol Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 4.43 Å | |||||||||
Authors | Lee J-H / Bollschweiler D | |||||||||
| Funding support | Germany, 1 items
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Citation | Journal: Sci Adv / Year: 2021Title: Structural basis for the regulation of nucleosome recognition and HDAC activity by histone deacetylase assemblies. Authors: Jung-Hoon Lee / Daniel Bollschweiler / Tillman Schäfer / Robert Huber / ![]() Abstract: The chromatin-modifying histone deacetylases (HDACs) remove acetyl groups from acetyl-lysine residues in histone amino-terminal tails, thereby mediating transcriptional repression. Structural makeup ...The chromatin-modifying histone deacetylases (HDACs) remove acetyl groups from acetyl-lysine residues in histone amino-terminal tails, thereby mediating transcriptional repression. Structural makeup and mechanisms by which multisubunit HDAC complexes recognize nucleosomes remain elusive. Our cryo-electron microscopy structures of the yeast class II HDAC ensembles show that the HDAC protomer comprises a triangle-shaped assembly of stoichiometry Hda1-Hda2-Hda3, in which the active sites of the Hda1 dimer are freely accessible. We also observe a tetramer of protomers, where the nucleosome binding modules are inaccessible. Structural analysis of the nucleosome-bound complexes indicates how positioning of Hda1 adjacent to histone H2B affords HDAC catalysis. Moreover, it reveals how an intricate network of multiple contacts between a dimer of protomers and the nucleosome creates a platform for expansion of the HDAC activities. Our study provides comprehensive insight into the structural plasticity of the HDAC complex and its functional mechanism of chromatin modification. | |||||||||
| History |
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Structure visualization
| Movie |
Movie viewer |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_11102.map.gz | 296.4 MB | EMDB map data format | |
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| Header (meta data) | emd-11102-v30.xml emd-11102.xml | 29.3 KB 29.3 KB | Display Display | EMDB header |
| Images | emd_11102.png | 16.1 KB | ||
| Filedesc metadata | emd-11102.cif.gz | 7.6 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11102 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11102 | HTTPS FTP |
-Validation report
| Summary document | emd_11102_validation.pdf.gz | 495.7 KB | Display | EMDB validaton report |
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| Full document | emd_11102_full_validation.pdf.gz | 495.2 KB | Display | |
| Data in XML | emd_11102_validation.xml.gz | 8.3 KB | Display | |
| Data in CIF | emd_11102_validation.cif.gz | 9.6 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11102 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11102 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6z6pMC ![]() 6z6fC ![]() 6z6hC ![]() 6z6oC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_11102.map.gz / Format: CCP4 / Size: 600.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | HDAC-PC-Nuc | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.8512 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : HDAC-PC-Nuc
+Supramolecule #1: HDAC-PC-Nuc
+Supramolecule #2: Histone deacetylase
+Supramolecule #3: Histone
+Supramolecule #4: DNA
+Macromolecule #1: Histone deacetylase HDA1
+Macromolecule #2: Histone deacetylase HDA1
+Macromolecule #3: HDA1 complex subunit 3,HDA1 complex subunit 3
+Macromolecule #4: HDA1 complex subunit 2
+Macromolecule #5: Histone H3
+Macromolecule #6: Histone H4
+Macromolecule #7: Histone H2A
+Macromolecule #8: Histone H2B
+Macromolecule #9: Histone H3.2
+Macromolecule #10: Histone H4
+Macromolecule #11: Histone H2A type 1
+Macromolecule #12: Histone H2B
+Macromolecule #13: DNA (145-MER)
+Macromolecule #14: DNA (145-MER)
+Macromolecule #15: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 77.2 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: OTHER / Imaging mode: OTHER |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: OTHER |
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| Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.43 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cisTEM (ver. 1) / Number images used: 41279 |
| Initial angle assignment | Type: OTHER |
| Final angle assignment | Type: OTHER |
-Atomic model buiding 1
| Details | Real space refinement |
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| Output model | ![]() PDB-6z6p: |
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Keywords
Authors
Germany, 1 items
Citation
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