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Open data
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Basic information
Entry | Database: PDB / ID: 8hpo | ||||||
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Title | Cryo-EM structure of a SIN3/HDAC complex from budding yeast | ||||||
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![]() | DNA BINDING PROTEIN / SIN3 / HDAC / deacetylase / Rpd3 | ||||||
Function / homology | ![]() negative regulation of phosphatidylserine biosynthetic process / negative regulation of inositol biosynthetic process / positive regulation of phosphatidylserine biosynthetic process / negative regulation of phosphatidylcholine biosynthetic process / positive regulation of inositol biosynthetic process / regulation of invasive growth in response to glucose limitation / PI5P Regulates TP53 Acetylation / conjugation with cellular fusion / positive regulation of phosphatidylcholine biosynthetic process / Snt2C complex ...negative regulation of phosphatidylserine biosynthetic process / negative regulation of inositol biosynthetic process / positive regulation of phosphatidylserine biosynthetic process / negative regulation of phosphatidylcholine biosynthetic process / positive regulation of inositol biosynthetic process / regulation of invasive growth in response to glucose limitation / PI5P Regulates TP53 Acetylation / conjugation with cellular fusion / positive regulation of phosphatidylcholine biosynthetic process / Snt2C complex / negative regulation of silent mating-type cassette heterochromatin formation / negative regulation of reciprocal meiotic recombination / positive regulation of invasive growth in response to glucose limitation / Rpd3L complex / protein localization to nucleolar rDNA repeats / invasive growth in response to glucose limitation / negative regulation of rDNA heterochromatin formation / Rpd3L-Expanded complex / Rpd3S complex / regulation of meiotic nuclear division / rDNA chromatin condensation / SUMOylation of transcription cofactors / nucleophagy / HDACs deacetylate histones / histone H4K16 deacetylase activity, hydrolytic mechanism / histone H4K5 deacetylase activity, hydrolytic mechanism / histone H4K8 deacetylase activity, hydrolytic mechanism / histone H3K4 deacetylase activity, hydrolytic mechanism / histone H3K14 deacetylase activity, hydrolytic mechanism / histone H4K12 deacetylase activity, hydrolytic mechanism / histone deacetylase / histone H3K9 deacetylase activity, hydrolytic mechanism / cell adhesion involved in single-species biofilm formation / SUMOylation of chromatin organization proteins / cellular response to nitrogen starvation / regulation of DNA-templated DNA replication initiation / negative regulation of transcription by RNA polymerase I / histone deacetylase activity / Sin3-type complex / Estrogen-dependent gene expression / positive regulation of macroautophagy / histone deacetylase complex / Ub-specific processing proteases / : / nuclear periphery / meiotic cell cycle / transcription coregulator activity / transcription elongation by RNA polymerase II / double-strand break repair via nonhomologous end joining / G1/S transition of mitotic cell cycle / histone deacetylase binding / transcription corepressor activity / G2/M transition of mitotic cell cycle / heterochromatin formation / nucleosome assembly / chromatin organization / cellular response to heat / response to oxidative stress / histone binding / transcription coactivator activity / chromatin remodeling / cell division / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / chromatin / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / mitochondrion / zinc ion binding / identical protein binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||
![]() | Guo, Z. / Zhan, X. / Wang, C. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of a SIN3-HDAC complex from budding yeast. Authors: Zhouyan Guo / Chen Chu / Yichen Lu / Xiaofeng Zhang / Yihang Xiao / Mingxuan Wu / Shuaixin Gao / Catherine C L Wong / Xiechao Zhan / Chengcheng Wang / ![]() ![]() Abstract: SIN3-HDAC (histone deacetylases) complexes have important roles in facilitating local histone deacetylation to regulate chromatin accessibility and gene expression. Here, we present the cryo-EM ...SIN3-HDAC (histone deacetylases) complexes have important roles in facilitating local histone deacetylation to regulate chromatin accessibility and gene expression. Here, we present the cryo-EM structure of the budding yeast SIN3-HDAC complex Rpd3L at an average resolution of 2.6 Å. The structure reveals that two distinct arms (ARM1 and ARM2) hang on a T-shaped scaffold formed by two coiled-coil domains. In each arm, Sin3 interacts with different subunits to create a different environment for the histone deacetylase Rpd3. ARM1 is in the inhibited state with the active site of Rpd3 blocked, whereas ARM2 is in an open conformation with the active site of Rpd3 exposed to the exterior space. The observed asymmetric architecture of Rpd3L is different from those of available structures of other class I HDAC complexes. Our study reveals the organization mechanism of the SIN3-HDAC complex and provides insights into the interaction pattern by which it targets histone deacetylase to chromatin. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 680.8 KB | Display | ![]() |
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PDB format | ![]() | 521.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 34935MC 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
-Transcriptional regulatory protein ... , 8 types, 9 molecules KDIABHCEJ
#1: Protein | Mass: 51075.602 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: Q03010 | ||||||||
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#2: Protein | Mass: 37765.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P40505 | ||||||||
#5: Protein | Mass: 23144.193 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P38429 | ||||||||
#6: Protein | Mass: 175047.266 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P22579 #7: Protein | | Mass: 47035.723 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P31385 #8: Protein | | Mass: 37081.430 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P50947 #9: Protein | | Mass: 48844.043 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P38255 #10: Protein | | Mass: 33851.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: Q07458 |
-Histone deacetylase ... , 2 types, 2 molecules FG
#3: Protein | Mass: 49361.848 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P32561, histone deacetylase |
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#4: Protein | Mass: 48961.957 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) ![]() ![]() References: UniProt: P32561, histone deacetylase |
-Non-polymers , 3 types, 7 molecules 




#11: Chemical | ChemComp-TPO / | ||
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#12: Chemical | #13: Chemical | ChemComp-K / |
-Details
Has ligand of interest | N |
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-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: The Rpd3L complex / Type: COMPLEX / Entity ID: #1-#10 / Source: MULTIPLE SOURCES |
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Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
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: 2300 nm / Nominal defocus min: 1800 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.17.1_3660: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 665105 / Symmetry type: POINT | ||||||||||||||||||||||||
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