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Open data
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Basic information
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| Title | H2BK120ub-modified nucleosome ubiquitin position 1 | |||||||||
Map data | Sharpened map (locally filtered) | |||||||||
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Keywords | nucleosome / ubiquitin / histone / chromatin / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||
| Function / homology | Function and homology informationhypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / fat pad development / mitochondrion transport along microtubule / seminiferous tubule development / female gonad development / male meiosis I / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / neuron projection morphogenesis ...hypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / fat pad development / mitochondrion transport along microtubule / seminiferous tubule development / female gonad development / male meiosis I / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / neuron projection morphogenesis / energy homeostasis / regulation of proteasomal protein catabolic process / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / IRAK2 mediated activation of TAK1 complex / Prevention of phagosomal-lysosomal fusion / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Endosomal Sorting Complex Required For Transport (ESCRT) / Membrane binding and targetting of GAG proteins / Negative regulation of FLT3 / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / 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 / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / p75NTR recruits signalling complexes / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Regulation of pyruvate metabolism / NF-kB is activated and signals survival / TRAF6-mediated induction of TAK1 complex within TLR4 complex / regulation of neuron apoptotic process / Pexophagy / Regulation of innate immune responses to cytosolic DNA / Downregulation of ERBB2:ERBB3 signaling / NRIF signals cell death from the nucleus / Regulation of PTEN localization / VLDLR internalisation and degradation / Activated NOTCH1 Transmits Signal to the Nucleus / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / positive regulation of protein ubiquitination / TICAM1, RIP1-mediated IKK complex recruitment / Translesion synthesis by REV1 / Regulation of BACH1 activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Translesion synthesis by POLK / InlB-mediated entry of Listeria monocytogenes into host cell / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Downregulation of TGF-beta receptor signaling / Josephin domain DUBs / Translesion synthesis by POLI / IKK complex recruitment mediated by RIP1 / Regulation of activated PAK-2p34 by proteasome mediated degradation / Gap-filling DNA repair synthesis and ligation in GG-NER / PINK1-PRKN Mediated Mitophagy / regulation of mitochondrial membrane potential / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / TNFR1-induced NF-kappa-B signaling pathway / TCF dependent signaling in response to WNT / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Regulation of NF-kappa B signaling / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / activated TAK1 mediates p38 MAPK activation / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / Regulation of signaling by CBL / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / NOTCH3 Activation and Transmission of Signal to the Nucleus / Negative regulators of DDX58/IFIH1 signaling / Negative regulation of FGFR3 signaling / Fanconi Anemia Pathway / Peroxisomal protein import / Assembly of the pre-replicative complex / Deactivation of the beta-catenin transactivating complex / Vpu mediated degradation of CD4 / Stabilization of p53 / Negative regulation of FGFR2 signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Degradation of DVL / Negative regulation of FGFR4 signaling / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of CRY and PER proteins Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.32 Å | |||||||||
Authors | Hicks CW / Wolberger C | |||||||||
| Funding support | United States, 2 items
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Citation | Journal: Nucleic Acids Res / Year: 2024Title: Ubiquitinated histone H2B as gatekeeper of the nucleosome acidic patch. Authors: Chad W Hicks / Sanim Rahman / Susan L Gloor / James K Fields / Natalia Ledo Husby / Anup Vaidya / Keith E Maier / Michael Morgan / Michael-Christopher Keogh / Cynthia Wolberger / ![]() Abstract: Monoubiquitination of histones H2B-K120 (H2BK120ub) and H2A-K119 (H2AK119ub) play opposing roles in regulating transcription and chromatin compaction. H2BK120ub is a hallmark of actively transcribed ...Monoubiquitination of histones H2B-K120 (H2BK120ub) and H2A-K119 (H2AK119ub) play opposing roles in regulating transcription and chromatin compaction. H2BK120ub is a hallmark of actively transcribed euchromatin, while H2AK119ub is highly enriched in transcriptionally repressed heterochromatin. Whereas H2BK120ub is known to stimulate the binding or activity of various chromatin-modifying enzymes, this post-translational modification (PTM) also interferes with the binding of several proteins to the nucleosome H2A/H2B acidic patch via an unknown mechanism. Here, we report cryoEM structures of an H2BK120ub nucleosome showing that ubiquitin adopts discrete positions that occlude the acidic patch. Molecular dynamics simulations show that ubiquitin remains stably positioned over this nucleosome region. By contrast, our cryoEM structures of H2AK119ub nucleosomes show ubiquitin adopting discrete positions that minimally occlude the acidic patch. Consistent with these observations, H2BK120ub, but not H2AK119ub, abrogates nucleosome interactions with acidic patch-binding proteins RCC1 and LANA, and single-domain antibodies specific to this region. Our results suggest a mechanism by which H2BK120ub serves as a gatekeeper to the acidic patch and point to distinct roles for histone H2AK119 and H2BK120 ubiquitination in regulating protein binding to nucleosomes. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_42898.map.gz | 2.9 MB | EMDB map data format | |
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| Header (meta data) | emd-42898-v30.xml emd-42898.xml | 31.6 KB 31.6 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_42898_fsc.xml | 10.1 KB | Display | FSC data file |
| Images | emd_42898.png | 134.2 KB | ||
| Masks | emd_42898_msk_1.map | 75.1 MB | Mask map | |
| Filedesc metadata | emd-42898.cif.gz | 7.5 KB | ||
| Others | emd_42898_additional_1.map.gz emd_42898_half_map_1.map.gz emd_42898_half_map_2.map.gz | 37.8 MB 69.7 MB 69.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-42898 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-42898 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8v25MC ![]() 8g6gC ![]() 8g6hC ![]() 8g6qC ![]() 8g6sC ![]() 8v26C ![]() 8v27C ![]() 8v28C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_42898.map.gz / Format: CCP4 / Size: 75.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Sharpened map (locally filtered) | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.97 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Mask #1
| File | emd_42898_msk_1.map | ||||||||||||
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| Projections & Slices |
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| Density Histograms |
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Sample components
+Entire : H2BK120ub-modified nucleosome
+Supramolecule #1: H2BK120ub-modified nucleosome
+Supramolecule #2: histones
+Supramolecule #3: DNA
+Supramolecule #4: ubiquitin
+Macromolecule #1: Histone H3.2
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A
+Macromolecule #4: Histone H2B 1.1
+Macromolecule #7: Ubiquitin
+Macromolecule #5: 601 DNA (147-MER)
+Macromolecule #6: 601 DNA (147-MER)
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 2 items
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Y (Row.)
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Processing
FIELD EMISSION GUN

