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Yorodumi- EMDB-31925: The motor-nucleosome module of human chromatin remodeling PBAF-nu... -
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Basic information
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| Title | The motor-nucleosome module of human chromatin remodeling PBAF-nucleosome complex | |||||||||
Map data | The motor-nucleosome module of human chromatin remodeling PBAF-nucleosome complex | |||||||||
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Keywords | complex / DNA BINDING PROTEIN | |||||||||
| Function / homology | Function and homology informationpositive regulation of glucose mediated signaling pathway / bBAF complex / nBAF complex / npBAF complex / perichromatin fibrils / negative regulation of androgen receptor signaling pathway / GBAF complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / neural retina development / Formation of the embryonic stem cell BAF (esBAF) complex ...positive regulation of glucose mediated signaling pathway / bBAF complex / nBAF complex / npBAF complex / perichromatin fibrils / negative regulation of androgen receptor signaling pathway / GBAF complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / neural retina development / Formation of the embryonic stem cell BAF (esBAF) complex / EGR2 and SOX10-mediated initiation of Schwann cell myelination / Formation of the canonical BAF (cBAF) complex / RSC-type complex / Formation of the polybromo-BAF (pBAF) complex / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / Formation of the non-canonical BAF (ncBAF) complex / regulation of G0 to G1 transition / RNA polymerase I preinitiation complex assembly / Tat protein binding / host-mediated activation of viral transcription / SWI/SNF complex / ATP-dependent chromatin remodeler activity / positive regulation of T cell differentiation / regulation of mitotic metaphase/anaphase transition / nuclear androgen receptor binding / regulation of nucleotide-excision repair / positive regulation of stem cell population maintenance / lncRNA binding / positive regulation of double-strand break repair / Regulation of MITF-M-dependent genes involved in pigmentation / negative regulation of cell differentiation / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / Differentiation of naive CD4+ T cells to T helper 2 cells (Th2 cells) / positive regulation of myoblast differentiation / ATP-dependent activity, acting on DNA / positive regulation of Wnt signaling pathway / positive regulation of signal transduction by p53 class mediator / regulation of G1/S transition of mitotic cell cycle / Chromatin modifying enzymes / DNA polymerase binding / helicase activity / Interleukin-7 signaling / transcription initiation-coupled chromatin remodeling / transcription coregulator binding / positive regulation of cell differentiation / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / euchromatin / negative regulation of cell growth / positive regulation of miRNA transcription / Negative Regulation of CDH1 Gene Transcription / fibrillar center / Formation of the beta-catenin:TCF transactivating complex / kinetochore / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / nucleosomal DNA binding / nuclear matrix / RMTs methylate histone arginines / innate immune response in mucosa / p53 binding / transcription corepressor activity / structural constituent of chromatin / nervous system development / nucleosome / nucleosome assembly / positive regulation of cold-induced thermogenesis / chromatin organization / antimicrobial humoral immune response mediated by antimicrobial peptide / heterochromatin formation / histone binding / antibacterial humoral response / transcription coactivator activity / RNA polymerase II cis-regulatory region sequence-specific DNA binding / chromatin remodeling / protein heterodimerization activity / negative regulation of DNA-templated transcription / chromatin binding / positive regulation of cell population proliferation / regulation of transcription by RNA polymerase II / nucleolus / positive regulation of DNA-templated transcription / chromatin / negative regulation of transcription by RNA polymerase II / : / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / protein-containing complex / DNA binding / nucleoplasm / extracellular region / ATP binding / membrane / identical protein binding / nucleus Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
Authors | Chen ZC / Chen KJ | |||||||||
| Funding support | China, 1 items
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Citation | Journal: Nature / Year: 2022Title: Structure of human chromatin-remodelling PBAF complex bound to a nucleosome. Authors: Junjie Yuan / Kangjing Chen / Wenbo Zhang / Zhucheng Chen / ![]() Abstract: DNA wraps around the histone octamer to form nucleosomes, the repeating unit of chromatin, which create barriers for accessing genetic information. Snf2-like chromatin remodellers couple the energy ...DNA wraps around the histone octamer to form nucleosomes, the repeating unit of chromatin, which create barriers for accessing genetic information. Snf2-like chromatin remodellers couple the energy of ATP binding and hydrolysis to reposition and recompose the nucleosome, and have vital roles in various chromatin-based transactions. Here we report the cryo-electron microscopy structure of the 12-subunit human chromatin-remodelling polybromo-associated BRG1-associated factor (PBAF) complex bound to the nucleosome. The motor subunit SMARCA4 engages the nucleosome in the active conformation, which reveals clustering of multiple disease-associated mutations at the interfaces that are essential for chromatin-remodelling activity. SMARCA4 recognizes the H2A-H2B acidic pocket of the nucleosome through three arginine anchors of the Snf2 ATP coupling (SnAc) domain. PBAF shows notable functional modularity, and most of the auxiliary subunits are interwoven into three lobe-like submodules for nucleosome recognition. The PBAF-specific auxiliary subunit ARID2 acts as the structural core for assembly of the DNA-binding lobe, whereas PBRM1, PHF10 and BRD7 are collectively incorporated into the lobe for histone tail binding. Together, our findings provide mechanistic insights into nucleosome recognition by PBAF and a structural basis for understanding SMARCA4-related human diseases. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_31925.map.gz | 9.6 MB | EMDB map data format | |
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| Header (meta data) | emd-31925-v30.xml emd-31925.xml | 23.2 KB 23.2 KB | Display Display | EMDB header |
| Images | emd_31925.png | 111 KB | ||
| Filedesc metadata | emd-31925.cif.gz | 7.6 KB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-31925 ftp://data.pdbj.org/pub/emdb/structures/EMD-31925 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7vdtMC ![]() 7vdvC M: atomic model generated by this map C: citing same article ( |
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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_31925.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | The motor-nucleosome module of human chromatin remodeling PBAF-nucleosome complex | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.0825 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : The motor-nucleosome module of human chromatin remodeling PBAF-nu...
+Supramolecule #1: The motor-nucleosome module of human chromatin remodeling PBAF-nu...
+Macromolecule #1: Isoform 2 of Transcription activator BRG1
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A
+Macromolecule #4: Histone H2B 1.1
+Macromolecule #5: Histone H3
+Macromolecule #6: DNA (207-MER)
+Macromolecule #7: DNA (207-MER)
+Macromolecule #8: BERYLLIUM TRIFLUORIDE ION
+Macromolecule #9: MAGNESIUM ION
+Macromolecule #10: ADENOSINE-5'-DIPHOSPHATE
-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: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
China, 1 items
Citation










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Processing
FIELD EMISSION GUN
