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Open data
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Basic information
Entry | Database: PDB / ID: 7crr | |||||||||||||||||||||
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Title | Native NSD3 bound to 187-bp nucleosome | |||||||||||||||||||||
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![]() | GENE REGULATION / nucleosome complex / histone methyltransferase | |||||||||||||||||||||
Function / homology | ![]() [histone H3]-lysine4 N-dimethyltransferase / [histone H3]-lysine27 N-dimethyltransferase / histone H3K4 dimethyltransferase activity / histone H3K27 dimethyltransferase activity / histone H3K27 trimethyltransferase activity / histone H3K36 methyltransferase activity / transcription regulator activator activity / histone H3 methyltransferase activity / PKMTs methylate histone lysines / structural constituent of chromatin ...[histone H3]-lysine4 N-dimethyltransferase / [histone H3]-lysine27 N-dimethyltransferase / histone H3K4 dimethyltransferase activity / histone H3K27 dimethyltransferase activity / histone H3K27 trimethyltransferase activity / histone H3K36 methyltransferase activity / transcription regulator activator activity / histone H3 methyltransferase activity / PKMTs methylate histone lysines / structural constituent of chromatin / nucleosome / nucleosome assembly / methylation / protein heterodimerization activity / regulation of DNA-templated transcription / chromatin / positive regulation of DNA-templated transcription / DNA binding / nucleoplasm / nucleus / metal ion binding Similarity search - Function | |||||||||||||||||||||
Biological species | ![]() ![]() ![]() synthetic construct (others) | |||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.48 Å | |||||||||||||||||||||
![]() | Li, W. / Tian, W. / Yuan, G. / Deng, P. / Gozani, O. / Patel, D. / Wang, Z. | |||||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Molecular basis of nucleosomal H3K36 methylation by NSD methyltransferases. Authors: Wanqiu Li / Wei Tian / Gang Yuan / Pujuan Deng / Deepanwita Sengupta / Zhongjun Cheng / Yinghua Cao / Jiahao Ren / Yan Qin / Yuqiao Zhou / Yulin Jia / Or Gozani / Dinshaw J Patel / Zhanxin Wang / ![]() ![]() Abstract: Histone methyltransferases of the nuclear receptor-binding SET domain protein (NSD) family, including NSD1, NSD2 and NSD3, have crucial roles in chromatin regulation and are implicated in oncogenesis. ...Histone methyltransferases of the nuclear receptor-binding SET domain protein (NSD) family, including NSD1, NSD2 and NSD3, have crucial roles in chromatin regulation and are implicated in oncogenesis. NSD enzymes exhibit an autoinhibitory state that is relieved by binding to nucleosomes, enabling dimethylation of histone H3 at Lys36 (H3K36). However, the molecular basis that underlies this mechanism is largely unknown. Here we solve the cryo-electron microscopy structures of NSD2 and NSD3 bound to mononucleosomes. We find that binding of NSD2 and NSD3 to mononucleosomes causes DNA near the linker region to unwrap, which facilitates insertion of the catalytic core between the histone octamer and the unwrapped segment of DNA. A network of DNA- and histone-specific contacts between NSD2 or NSD3 and the nucleosome precisely defines the position of the enzyme on the nucleosome, explaining the specificity of methylation to H3K36. Intermolecular contacts between NSD proteins and nucleosomes are altered by several recurrent cancer-associated mutations in NSD2 and NSD3. NSDs that contain these mutations are catalytically hyperactive in vitro and in cells, and their ectopic expression promotes the proliferation of cancer cells and the growth of xenograft tumours. Together, our research provides molecular insights into the nucleosome-based recognition and histone-modification mechanisms of NSD2 and NSD3, which could lead to strategies for therapeutic targeting of proteins of the NSD family. | |||||||||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 451.8 KB | Display | ![]() |
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PDB format | ![]() | 337.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 30457MC ![]() 7croC ![]() 7crpC ![]() 7crqC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-Protein , 5 types, 9 molecules MEBFCGDHI
#1: Protein | Mass: 15223.779 Da / Num. of mol.: 2 / Mutation: K36Nle, M90Nle, M120Nle 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.) ![]() Gene: h2bc12, edar, hist1h2bk / Production host: ![]() ![]() #7: Protein | | Mass: 85484.312 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q9BZ95, Transferases; Transferring one-carbon groups; Methyltransferases |
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-DNA chain , 2 types, 2 molecules AK
#5: DNA chain | Mass: 57488.551 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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#6: DNA chain | Mass: 57982.918 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Non-polymers , 2 types, 4 molecules ![](data/chem/img/SAM.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/ZN.gif)
#8: Chemical | ChemComp-SAM / |
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#9: Chemical |
-Details
Has ligand of interest | Y |
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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
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Molecular weight | Value: 0.3 MDa / Experimental value: YES | ||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Specimen | Conc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: The sample was monodisperse. | ||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 281 K Details: blotted for 3 s before being plunged into liquid 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 / Cs: 2.7 mm / C2 aperture diameter: 70 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
Image scans | Movie frames/image: 32 |
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Processing
Software | Name: PHENIX / Version: 1.16_3549: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.48 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 61058 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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