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Open data
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Basic information
| Entry | Database: PDB / ID: 9gmr | ||||||||||||||||||||||||
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| Title | SIRT7-H3K36MTUnucleosome complex | ||||||||||||||||||||||||
Components |
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Keywords | DNA / nucleosome complex | ||||||||||||||||||||||||
| Function / homology | Function and homology informationnucleolus organizer region / protein depropionylation / NAD-dependent protein-lysine depropionylase activity / protein deglutarylation / protein-glutaryllysine deglutarylase activity / histone H3K18 deacetylase activity, NAD-dependent / protein-succinyllysine desuccinylase activity / homologous chromosome pairing at meiosis / R-loop processing / regulation of protein export from nucleus ...nucleolus organizer region / protein depropionylation / NAD-dependent protein-lysine depropionylase activity / protein deglutarylation / protein-glutaryllysine deglutarylase activity / histone H3K18 deacetylase activity, NAD-dependent / protein-succinyllysine desuccinylase activity / homologous chromosome pairing at meiosis / R-loop processing / regulation of protein export from nucleus / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / protein methyltransferase activity / transposable element silencing / protein acetyllysine N-acetyltransferase / NAD-dependent protein lysine deacetylase activity / regulation of mitochondrion organization / protein deacetylation / positive regulation of rRNA processing / rRNA transcription / negative regulation of gene expression, epigenetic / ChAHP complex assembly / positive regulation of transcription by RNA polymerase I / DNA repair-dependent chromatin remodeling / NAD+ binding / FXIIa activates plasma kallikrein-kinin system / negative regulation of tumor necrosis factor-mediated signaling pathway / Interaction of NuRD complexes with transcription factors / CHD6, CHD7, CHD8, CHD9 subfamily / NuRD complex assembly / CHD1 and CHD2 subfamily / positive regulation of gluconeogenesis / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / negative regulation of protein ubiquitination / Packaging Of Telomere Ends / Transferases; Acyltransferases; Transferring groups other than aminoacyl groups / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / regulation of DNA repair / telomere organization / Interleukin-7 signaling / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / transcription initiation-coupled chromatin remodeling / RNA Polymerase I Promoter Opening / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Meiotic synapsis / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDACs deacetylate histones / Transcriptional regulation by small RNAs / lipopolysaccharide binding / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / HDMs demethylate histones / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / PKMTs methylate histone lysines / G2/M DNA damage checkpoint / Formation of the beta-catenin:TCF transactivating complex / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / Pre-NOTCH Transcription and Translation / Activation of anterior HOX genes in hindbrain development during early embryogenesis / osteoblast differentiation / Transcriptional regulation of granulopoiesis / nucleosomal DNA binding / RMTs methylate histone arginines / Metalloprotease DUBs / HCMV Early Events / innate immune response in mucosa / structural constituent of chromatin / nucleosome / Regulation of PD-L1(CD274) transcription / UCH proteinases / nucleosome assembly / site of double-strand break / HATs acetylate histones / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis Similarity search - Function | ||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | ||||||||||||||||||||||||
Authors | Moreno-Yruela, C. / Ekundayo, B. / Foteva, P. / Calvino-Sanles, E. / Ni, D. / Stahlberg, H. / Fierz, B. | ||||||||||||||||||||||||
| Funding support | Switzerland, Denmark, Spain, 4items
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Citation | Journal: Nat Commun / Year: 2025Title: Structural basis of SIRT7 nucleosome engagement and substrate specificity. Authors: Carlos Moreno-Yruela / Babatunde E Ekundayo / Polina N Foteva / Dongchun Ni / Esther Calvino-Sanles / Henning Stahlberg / Beat Fierz / ![]() Abstract: Chromatin-modifying enzymes target distinct residues within histones to finetune gene expression profiles. SIRT7 is an NAD-dependent deacylase often deregulated in cancer, which deacetylates either ...Chromatin-modifying enzymes target distinct residues within histones to finetune gene expression profiles. SIRT7 is an NAD-dependent deacylase often deregulated in cancer, which deacetylates either H3 lysine 36 (H3K36) or H3K18 with high specificity within nucleosomes. Here, we report structures of nucleosome-bound SIRT7, and uncover the structural basis of its specificity towards H3K36 and K18 deacylation, combining a mechanism-based cross-linking strategy, cryo-EM, and enzymatic and cellular assays. We show that the SIRT7 N-terminus represents a unique, extended nucleosome-binding domain, reaching across the nucleosomal surface to the acidic patch. The catalytic domain binds at the H3-tail exit site, engaging both DNA gyres of the nucleosome. Contacting H3K36 versus H3K18 requires a change in binding pose, and results in structural changes in both SIRT7 and the nucleosome. These structures reveal the basis of lysine specificity, allowing us to engineer SIRT7 towards enhanced H3K18ac selectivity, and provides a basis for small molecule modulator development. | ||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9gmr.cif.gz | 391.4 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9gmr.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9gmr.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/gm/9gmr ftp://data.pdbj.org/pub/pdb/validation_reports/gm/9gmr | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 51453MC ![]() 9gmkC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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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: 15421.101 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human)Gene: H3C15, HIST2H3A, H3C14, H3F2, H3FM, HIST2H3C, H3C13, HIST2H3D Production host: ![]() #2: Protein | Mass: 11394.426 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human)Gene: H4C1, H4/A, H4FA, HIST1H4A, H4C2, H4/I, H4FI, HIST1H4B, H4C3, H4/G, H4FG, HIST1H4C, H4C4, H4/B, H4FB, HIST1H4D, H4C5, H4/J, H4FJ, HIST1H4E, H4C6, H4/C, H4FC, HIST1H4F, H4C8, H4/H, H4FH, ...Gene: H4C1, H4/A, H4FA, HIST1H4A, H4C2, H4/I, H4FI, HIST1H4B, H4C3, H4/G, H4FG, HIST1H4C, H4C4, H4/B, H4FB, HIST1H4D, H4C5, H4/J, H4FJ, HIST1H4E, H4C6, H4/C, H4FC, HIST1H4F, H4C8, H4/H, H4FH, HIST1H4H, H4C9, H4/M, H4FM, HIST1H4I, H4C11, H4/E, H4FE, HIST1H4J, H4C12, H4/D, H4FD, HIST1H4K, H4C13, H4/K, H4FK, HIST1H4L, H4C14, H4/N, H4F2, H4FN, HIST2H4, HIST2H4A, H4C15, H4/O, H4FO, HIST2H4B, H4C16, H4-16, HIST4H4 Production host: ![]() #3: Protein | Mass: 13994.354 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HIST2H2AA3, H2AFO, HIST2H2AA, HIST2H2AA4 / Production host: ![]() #4: Protein | Mass: 13907.226 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: H2BC11, H2BFR, HIST1H2BJ / Production host: ![]() #7: Protein | | Mass: 45035.590 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SIRT7, SIR2L7 / Production host: ![]() References: UniProt: Q9NRC8, protein acetyllysine N-acetyltransferase, Transferases; Acyltransferases; Transferring groups other than aminoacyl groups |
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-DNA chain , 2 types, 2 molecules IJ
| #5: DNA chain | Mass: 45701.125 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
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| #6: DNA chain | Mass: 46283.469 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
-Non-polymers , 2 types, 2 molecules 
| #8: Chemical | ChemComp-A1IY0 / [[( Mass: 673.528 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C20H33N7O13P2S / Feature type: SUBJECT OF INVESTIGATION |
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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: K36 structure / Type: COMPLEX / Entity ID: #1-#7 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 8 |
| Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
| EM imaging optics | Energyfilter name: TFS Selectris X |
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Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 337476 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | Protocol: AB INITIO MODEL / Space: REAL | ||||||||||||||||||||||||
| Refinement | Highest resolution: 2.8 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
Switzerland,
Denmark,
Spain, 4items
Citation


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FIELD EMISSION GUN