+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-17796 | |||||||||
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Title | human RYBP-PRC1 bound to H2AK118ub1 nucleosome | |||||||||
Map data | Focused refine post-processing map | |||||||||
Sample |
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Keywords | ncPRC1 / RYBP-PRC1 / nucleosome / H2A / histones / RYBP / Ubiquitin / K119 / GENE REGULATION | |||||||||
Function / homology | Function and homology information Condensation of Prophase Chromosomes / Metalloprotease DUBs / E3 ubiquitin ligases ubiquitinate target proteins / RMTs methylate histone arginines / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / polytene chromosome band / SIRT1 negatively regulates rRNA expression / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RNA Polymerase I Promoter Escape ...Condensation of Prophase Chromosomes / Metalloprotease DUBs / E3 ubiquitin ligases ubiquitinate target proteins / RMTs methylate histone arginines / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / polytene chromosome band / SIRT1 negatively regulates rRNA expression / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RNA Polymerase I Promoter Escape / Formation of the beta-catenin:TCF transactivating complex / PRC2 methylates histones and DNA / HDACs deacetylate histones / Ub-specific processing proteases / Regulation of endogenous retroelements by KRAB-ZFP proteins / larval somatic muscle development / Transcriptional regulation by small RNAs / Estrogen-dependent gene expression / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Senescence-Associated Secretory Phenotype (SASP) / HATs acetylate histones / UCH proteinases / Assembly of the ORC complex at the origin of replication / Oxidative Stress Induced Senescence / polytene chromosome / PcG protein complex / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / Transcriptional Regulation by E2F6 / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / nucleosomal DNA binding / transcription coregulator activity / heterochromatin formation / structural constituent of chromatin / transcription corepressor activity / nucleosome / nucleosome assembly / chromatin organization / chromosome / nucleic acid binding / chromatin remodeling / positive regulation of apoptotic process / protein heterodimerization activity / regulation of DNA-templated transcription / protein-containing complex binding / apoptotic process / positive regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II / DNA binding / nucleoplasm / nucleus / metal ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Drosophila melanogaster (fruit fly) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.18 Å | |||||||||
Authors | Ciapponi M / Benda C / Mueller J | |||||||||
Funding support | Germany, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024 Title: Structural basis of the histone ubiquitination read-write mechanism of RYBP-PRC1. Authors: Maria Ciapponi / Elena Karlukova / Sven Schkölziger / Christian Benda / Jürg Müller / Abstract: Histone H2A monoubiquitination (H2Aub1) by the PRC1 subunit RING1B entails a positive feedback loop, mediated by the RING1B-interacting protein RYBP. We uncover that human RYBP-PRC1 binds unmodified ...Histone H2A monoubiquitination (H2Aub1) by the PRC1 subunit RING1B entails a positive feedback loop, mediated by the RING1B-interacting protein RYBP. We uncover that human RYBP-PRC1 binds unmodified nucleosomes via RING1B but H2Aub1-modified nucleosomes via RYBP. RYBP interactions with both ubiquitin and the nucleosome acidic patch create the high binding affinity that favors RYBP- over RING1B-directed PRC1 binding to H2Aub1-modified nucleosomes; this enables RING1B to monoubiquitinate H2A in neighboring unmodified nucleosomes. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_17796.map.gz | 39.9 MB | EMDB map data format | |
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Header (meta data) | emd-17796-v30.xml emd-17796.xml | 28 KB 28 KB | Display Display | EMDB header |
Images | emd_17796.png | 112.3 KB | ||
Filedesc metadata | emd-17796.cif.gz | 7.2 KB | ||
Others | emd_17796_additional_1.map.gz emd_17796_half_map_1.map.gz emd_17796_half_map_2.map.gz | 33.1 MB 33.1 MB 33.1 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-17796 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-17796 | HTTPS FTP |
-Validation report
Summary document | emd_17796_validation.pdf.gz | 791.8 KB | Display | EMDB validaton report |
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Full document | emd_17796_full_validation.pdf.gz | 791.4 KB | Display | |
Data in XML | emd_17796_validation.xml.gz | 11.1 KB | Display | |
Data in CIF | emd_17796_validation.cif.gz | 13.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17796 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17796 | HTTPS FTP |
-Related structure data
Related structure data | 8pp6MC 8pp7C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_17796.map.gz / Format: CCP4 / Size: 42.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Focused refine post-processing map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.094 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: non focused refine post-processing map
File | emd_17796_additional_1.map | ||||||||||||
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Annotation | non focused refine post-processing map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Focus refine half map
File | emd_17796_half_map_1.map | ||||||||||||
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Annotation | Focus refine half map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Focus refine half map
File | emd_17796_half_map_2.map | ||||||||||||
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Annotation | Focus refine half map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : human RYBP-PRC1 bound to H2AK118ub1 nucleosome
+Supramolecule #1: human RYBP-PRC1 bound to H2AK118ub1 nucleosome
+Supramolecule #2: human RYBP
+Supramolecule #3: Drosophila octamer
+Supramolecule #4: DNA
+Supramolecule #5: Human Ubiquitin
+Macromolecule #1: Histone H3 (Fragment)
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A
+Macromolecule #4: Histone H2B
+Macromolecule #7: RING1 and YY1-binding protein
+Macromolecule #8: Ubiquitin-40S ribosomal protein S27a (Fragment)
+Macromolecule #5: DNA (215-MER)
+Macromolecule #6: DNA (215-MER)
+Macromolecule #9: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 54.0 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: 3.0 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: INSILICO MODEL / In silico model: 3D initial model |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.18 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 12150042 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1.1) |
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1.1) |