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- EMDB-33126: Cryo-EM structure of Dot1L and H2BK34ub-H3K79Nle nucleosome 1:1 c... -
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Basic information
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Title | Cryo-EM structure of Dot1L and H2BK34ub-H3K79Nle nucleosome 1:1 complex | ||||||||||||||||||
![]() | Dot1L, H2BK34ub | ||||||||||||||||||
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![]() | Complex / Dot1L / H2BK34ub / Nucleosome / NUCLEAR PROTEIN | ||||||||||||||||||
Function / homology | ![]() [histone H3]-lysine79 N-trimethyltransferase / histone H3K79 methyltransferase activity / histone H3K79 trimethyltransferase activity / regulation of transcription regulatory region DNA binding / regulation of receptor signaling pathway via JAK-STAT / hypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / mitochondrion transport along microtubule / histone H3 methyltransferase activity ...[histone H3]-lysine79 N-trimethyltransferase / histone H3K79 methyltransferase activity / histone H3K79 trimethyltransferase activity / regulation of transcription regulatory region DNA binding / regulation of receptor signaling pathway via JAK-STAT / hypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / mitochondrion transport along microtubule / histone H3 methyltransferase activity / fat pad development / histone methyltransferase activity / female gonad development / seminiferous tubule development / male meiosis I / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / subtelomeric heterochromatin formation / Replacement of protamines by nucleosomes in the male pronucleus / Packaging Of Telomere Ends / energy homeostasis / regulation of neuron apoptotic process / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / regulation of proteasomal protein catabolic process / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / Deposition of new CENPA-containing nucleosomes at the centromere / FLT3 signaling by CBL mutants / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Constitutive Signaling by NOTCH1 HD Domain Mutants / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / telomere organization / TICAM1-dependent activation of IRF3/IRF7 / Regulation of FZD by ubiquitination / Meiotic synapsis / APC/C:Cdc20 mediated degradation of Cyclin B / Inhibition of DNA recombination at telomere / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / RNA Polymerase I Promoter Opening / APC-Cdc20 mediated degradation of Nek2A / Regulation of innate immune responses to cytosolic DNA / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of pyruvate metabolism / NF-kB is activated and signals survival / Downregulation of ERBB2:ERBB3 signaling / Assembly of the ORC complex at the origin of replication / Pexophagy / NRIF signals cell death from the nucleus / VLDLR internalisation and degradation / Regulation of PTEN localization / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Activated NOTCH1 Transmits Signal to the Nucleus / neuron projection morphogenesis / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Regulation of BACH1 activity / DNA methylation / TICAM1, RIP1-mediated IKK complex recruitment / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Translesion synthesis by REV1 / Condensation of Prophase Chromosomes / Translesion synthesis by POLK / regulation of mitochondrial membrane potential / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Downregulation of TGF-beta receptor signaling / DNA damage checkpoint signaling / InlB-mediated entry of Listeria monocytogenes into host cell / Regulation of activated PAK-2p34 by proteasome mediated degradation / Josephin domain DUBs / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / Translesion synthesis by POLI / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / SIRT1 negatively regulates rRNA expression / IKK complex recruitment mediated by RIP1 / Gap-filling DNA repair synthesis and ligation in GG-NER / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / innate immune response in mucosa / PINK1-PRKN Mediated Mitophagy / PRC2 methylates histones and DNA / positive regulation of protein ubiquitination Similarity search - Function | ||||||||||||||||||
Biological species | ![]() | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.57 Å | ||||||||||||||||||
![]() | Ai HS / Liu AJ / Lou ZY / Liu L | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: H2B Lys34 Ubiquitination Induces Nucleosome Distortion to Stimulate Dot1L Activity. Authors: Huasong Ai / Maoshen Sun / Aijun Liu / Zixian Sun / Tingting Liu / Lin Cao / Lujun Liang / Qian Qu / Zichen Li / Zhiheng Deng / Zebin Tong / Guochao Chu / Xiaolin Tian / Haiteng Deng / Suwen ...Authors: Huasong Ai / Maoshen Sun / Aijun Liu / Zixian Sun / Tingting Liu / Lin Cao / Lujun Liang / Qian Qu / Zichen Li / Zhiheng Deng / Zebin Tong / Guochao Chu / Xiaolin Tian / Haiteng Deng / Suwen Zhao / Jia-Bin Li / Zhiyong Lou / Lei Liu / ![]() Abstract: Ubiquitination-dependent histone crosstalk plays critical roles in chromatin-associated processes and is highly associated with human diseases. Mechanism studies of the crosstalk have been of the ...Ubiquitination-dependent histone crosstalk plays critical roles in chromatin-associated processes and is highly associated with human diseases. Mechanism studies of the crosstalk have been of the central focus. Here our study on the crosstalk between H2BK34ub and Dot1L-catalyzed H3K79me suggests a novel mechanism of ubiquitination-induced nucleosome distortion to stimulate the activity of an enzyme. We determined the cryo-electron microscopy structures of Dot1L-H2BK34ub nucleosome complex and the H2BK34ub nucleosome alone. The structures reveal that H2BK34ub induces an almost identical orientation and binding pattern of Dot1L on nucleosome as H2BK120ub, which positions Dot1L for the productive conformation through direct ubiquitin-enzyme contacts. However, H2BK34-anchored ubiquitin does not directly interact with Dot1L as occurs in the case of H2BK120ub, but rather induces DNA and histone distortion around the modified site. Our findings establish the structural framework for understanding the H2BK34ub-H3K79me trans-crosstalk and highlight the diversity of mechanisms for histone ubiquitination to activate chromatin-modifying enzymes. | ||||||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 23.5 KB 23.5 KB | Display Display | ![]() |
Images | ![]() | 99.5 KB | ||
Filedesc metadata | ![]() | 6.5 KB | ||
Others | ![]() ![]() | 59.7 MB 59.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 823.9 KB | Display | ![]() |
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Full document | ![]() | 823.5 KB | Display | |
Data in XML | ![]() | 10.8 KB | Display | |
Data in CIF | ![]() | 14.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7xcrMC ![]() 7xctC ![]() 7xd0C ![]() 7xd1C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||
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Annotation | Dot1L, H2BK34ub | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Dot1L, H2BK34ub
File | emd_33126_half_map_1.map | ||||||||||||
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Annotation | Dot1L, H2BK34ub | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Dot1L, H2BK34ub
File | emd_33126_half_map_2.map | ||||||||||||
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Annotation | Dot1L, H2BK34ub | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : Complex of Dot1L(1-416) and H2BK34ub nucleosome
+Supramolecule #1: Complex of Dot1L(1-416) and H2BK34ub nucleosome
+Macromolecule #1: Ubiquitin
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A
+Macromolecule #4: Histone H2B type 1-K
+Macromolecule #5: Histone-lysine N-methyltransferase, H3 lysine-79 specific
+Macromolecule #6: Histone domain-containing protein
+Macromolecule #7: DNA (146-MER)
+Macromolecule #8: DNA (146-MER)
+Macromolecule #9: S-ADENOSYLMETHIONINE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 |
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 (6k x 4k) / Average exposure time: 2.56 sec. / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm |
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 | Resolution.type: BY AUTHOR / Resolution: 2.57 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 199459 |
Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: ANGULAR RECONSTITUTION |