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Open data
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Basic information
Entry | Database: PDB / ID: 8f86 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | SIRT6 bound to an H3K9Ac nucleosome | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | GENE REGULATION / nucleosome / SIRTUIN6 / histone deacylation / H3K9Ac | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() ketone biosynthetic process / protein delipidation / NAD+-protein-lysine ADP-ribosyltransferase activity / regulation of lipid catabolic process / chromosome, subtelomeric region / positive regulation of protein localization to chromatin / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity / NAD+-protein-arginine ADP-ribosyltransferase activity / DNA damage sensor activity ...ketone biosynthetic process / protein delipidation / NAD+-protein-lysine ADP-ribosyltransferase activity / regulation of lipid catabolic process / chromosome, subtelomeric region / positive regulation of protein localization to chromatin / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity / NAD+-protein-arginine ADP-ribosyltransferase activity / DNA damage sensor activity / positive regulation of stem cell differentiation / NAD-dependent protein lysine deacetylase activity / positive regulation of chondrocyte proliferation / transposable element silencing / cardiac muscle cell differentiation / protein acetyllysine N-acetyltransferase / histone H3K14 deacetylase activity, NAD-dependent / histone H3K9 deacetylase activity, NAD-dependent / histone H4K16 deacetylase activity, NAD-dependent / histone H3K18 deacetylase activity, NAD-dependent / histone H3K56 deacetylase activity, NAD-dependent / histone H3K4 deacetylase activity, NAD-dependent / pericentric heterochromatin formation / histone deacetylase activity, NAD-dependent / protein deacetylation / negative regulation of D-glucose import / protein localization to site of double-strand break / positive regulation of blood vessel branching / histone H3K9 deacetylase activity, hydrolytic mechanism / negative regulation of glycolytic process / negative regulation of protein localization to chromatin / positive regulation of vascular endothelial cell proliferation / TORC2 complex binding / histone deacetylase regulator activity / regulation of double-strand break repair via homologous recombination / negative regulation of protein import into nucleus / positive regulation of double-strand break repair / lncRNA binding / regulation of protein secretion / DNA repair-dependent chromatin remodeling / positive regulation of stem cell proliferation / negative regulation of gene expression, epigenetic / positive regulation of stem cell population maintenance / NAD+-protein mono-ADP-ribosyltransferase activity / positive regulation of telomere maintenance / negative regulation of transcription elongation by RNA polymerase II / site of DNA damage / regulation of lipid metabolic process / NAD+ poly-ADP-ribosyltransferase activity / Transferases; Glycosyltransferases; Pentosyltransferases / negative regulation of cellular senescence / NAD+ binding / positive regulation of fat cell differentiation / negative regulation of gluconeogenesis / subtelomeric heterochromatin formation / pericentric heterochromatin / regulation of protein localization to plasma membrane / response to UV / nucleosome binding / enzyme regulator activity / Transferases; Acyltransferases; Transferring groups other than aminoacyl groups / nucleotidyltransferase activity / positive regulation of protein export from nucleus / determination of adult lifespan / circadian regulation of gene expression / regulation of circadian rhythm / protein destabilization / base-excision repair / positive regulation of insulin secretion / chromatin DNA binding / Pre-NOTCH Transcription and Translation / positive regulation of fibroblast proliferation / protein import into nucleus / transcription corepressor activity / structural constituent of chromatin / nucleosome / glucose homeostasis / heterochromatin formation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / double-strand break repair / nucleosome assembly / site of double-strand break / positive regulation of cold-induced thermogenesis / Processing of DNA double-strand break ends / damaged DNA binding / chromatin remodeling / protein heterodimerization activity / negative regulation of cell population proliferation / intracellular membrane-bounded organelle / chromatin binding / chromatin / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / protein homodimerization activity / DNA binding / zinc ion binding / nucleoplasm / nucleus Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() synthetic construct (others) ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Markert, J. / Whedon, S. / Wang, Z. / Cole, P. / Farnung, L. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | 1items
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![]() | ![]() Title: Structural Basis of Sirtuin 6-Catalyzed Nucleosome Deacetylation. Authors: Zhipeng A Wang / Jonathan W Markert / Samuel D Whedon / Maheeshi Yapa Abeywardana / Kwangwoon Lee / Hanjie Jiang / Carolay Suarez / Hening Lin / Lucas Farnung / Philip A Cole / ![]() Abstract: The reversible acetylation of histone lysine residues is controlled by the action of acetyltransferases and deacetylases (HDACs), which regulate chromatin structure and gene expression. The sirtuins ...The reversible acetylation of histone lysine residues is controlled by the action of acetyltransferases and deacetylases (HDACs), which regulate chromatin structure and gene expression. The sirtuins are a family of NAD-dependent HDAC enzymes, and one member, sirtuin 6 (Sirt6), influences DNA repair, transcription, and aging. Here, we demonstrate that Sirt6 is efficient at deacetylating several histone H3 acetylation sites, including its canonical site Lys9, in the context of nucleosomes but not free acetylated histone H3 protein substrates. By installing a chemical warhead at the Lys9 position of histone H3, we trap a catalytically poised Sirt6 in complex with a nucleosome and employ this in cryo-EM structural analysis. The structure of Sirt6 bound to a nucleosome reveals extensive interactions between distinct segments of Sirt6 and the H2A/H2B acidic patch and nucleosomal DNA, which accounts for the rapid deacetylation of nucleosomal H3 sites and the disfavoring of histone H2B acetylation sites. These findings provide a new framework for understanding how HDACs target and regulate 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 | ![]() | 383.1 KB | Display | ![]() |
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PDB format | ![]() | 290.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 28915MC 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 , 5 types, 9 molecules AEBFCGDHK
#1: Protein | Mass: 15271.863 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 11263.231 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #3: Protein | Mass: 13978.241 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #4: Protein | Mass: 13524.752 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #7: Protein | | Mass: 39152.863 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: Q8N6T7, Transferases; Acyltransferases; Transferring groups other than aminoacyl groups, protein acetyllysine N-acetyltransferase, Transferases; Glycosyltransferases; Pentosyltransferases |
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-DNA chain , 2 types, 2 molecules IJ
#5: DNA chain | Mass: 57400.559 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() |
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#6: DNA chain | Mass: 56831.191 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() |
-Non-polymers , 2 types, 2 molecules 


#8: Chemical | ChemComp-ZSL / [( |
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#9: Chemical | ChemComp-ZN / |
-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-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: SIRT6 bound to H3K9Ac / Type: COMPLEX / Entity ID: #1-#7 / Source: MULTIPLE SOURCES |
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Molecular weight | Experimental value: NO |
Buffer solution | pH: 7.5 |
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: 1700 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 50.45 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | ||||||||||||||||||||||||
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EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 95205 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||
Refine LS restraints |
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