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- PDB-7vdt: The motor-nucleosome module of human chromatin remodeling PBAF-nu... -

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Basic information

Entry
Database: PDB / ID: 7vdt
TitleThe motor-nucleosome module of human chromatin remodeling PBAF-nucleosome complex
Components
  • (DNA (207-MER)) x 2
  • Histone H2A
  • Histone H2B 1.1
  • Histone H3
  • Histone H4
  • Isoform 2 of Transcription activator BRG1
KeywordsDNA BINDING PROTEIN / complex
Function / homology
Function and homology information


positive regulation of glucose mediated signaling pathway / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / bBAF complex / neural retina development / npBAF complex / nBAF complex / negative regulation of androgen receptor signaling pathway / EGR2 and SOX10-mediated initiation of Schwann cell myelination / nucleosome array spacer activity / GBAF complex ...positive regulation of glucose mediated signaling pathway / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / bBAF complex / neural retina development / npBAF complex / nBAF complex / negative regulation of androgen receptor signaling pathway / EGR2 and SOX10-mediated initiation of Schwann cell myelination / nucleosome array spacer activity / GBAF complex / regulation of G0 to G1 transition / Tat protein binding / RNA polymerase I preinitiation complex assembly / RSC-type complex / ATP-dependent chromatin remodeler activity / regulation of nucleotide-excision repair / host-mediated activation of viral transcription / nucleosome disassembly / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / positive regulation of T cell differentiation / nuclear androgen receptor binding / positive regulation of double-strand break repair / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / positive regulation of stem cell population maintenance / Regulation of MITF-M-dependent genes involved in pigmentation / regulation of G1/S transition of mitotic cell cycle / positive regulation of signal transduction by p53 class mediator / negative regulation of cell differentiation / positive regulation of Wnt signaling pathway / ATP-dependent activity, acting on DNA / positive regulation of myoblast differentiation / Chromatin modifying enzymes / DNA polymerase binding / 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) / Formation of the beta-catenin:TCF transactivating complex / helicase activity / negative regulation of cell growth / kinetochore / positive regulation of miRNA transcription / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / RMTs methylate histone arginines / nuclear matrix / fibrillar center / p53 binding / structural constituent of chromatin / transcription corepressor activity / nervous system development / nucleosome / heterochromatin formation / nucleosome assembly / positive regulation of cold-induced thermogenesis / histone binding / transcription coactivator activity / hydrolase activity / chromatin remodeling / protein heterodimerization activity / negative regulation of DNA-templated transcription / positive regulation of cell population proliferation / chromatin binding / regulation of transcription by RNA polymerase II / chromatin / positive regulation of DNA-templated transcription / nucleolus / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / protein-containing complex / extracellular space / DNA binding / RNA binding / nucleoplasm / ATP binding / nucleus / membrane
Similarity search - Function
SWI/SNF complex subunit BRG1 / BRK domain / BRK domain / BRK domain superfamily / domain in transcription and CHROMO domain helicases / Glutamine-Leucine-Glutamine, QLQ / QLQ / QLQ domain profile. / QLQ / Snf2-ATP coupling, chromatin remodelling complex ...SWI/SNF complex subunit BRG1 / BRK domain / BRK domain / BRK domain superfamily / domain in transcription and CHROMO domain helicases / Glutamine-Leucine-Glutamine, QLQ / QLQ / QLQ domain profile. / QLQ / Snf2-ATP coupling, chromatin remodelling complex / Snf2, ATP coupling domain / Snf2-ATP coupling, chromatin remodelling complex / domain in helicases and associated with SANT domains / HSA domain / Helicase/SANT-associated domain / HSA domain profile. / : / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Helicase conserved C-terminal domain / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 domain / Bromodomain, conserved site / Bromodomain signature. / Bromodomain / Histone-fold / bromo domain / Bromodomain / Bromodomain (BrD) profile. / Bromodomain-like superfamily / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / BERYLLIUM TRIFLUORIDE ION / DNA / DNA (> 10) / DNA (> 100) / Histone H3 / Histone H2B 1.1 / SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4 / Histone H4 / Histone H2A
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsChen, Z.C. / Chen, K.J. / Yuan, J.J.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Nature / Year: 2022
Title: 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.
History
DepositionSep 7, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 18, 2022Provider: repository / Type: Initial release
Revision 1.0May 18, 2022Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0May 18, 2022Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0May 18, 2022Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Sep 17, 2025Group: Advisory / Data collection ...Advisory / Data collection / Derived calculations / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_validate_close_contact / struct_conn / struct_conn_type
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.1Sep 17, 2025Data content type: EM metadata / Data content type: EM metadata / Group: Experimental summary / Data content type: EM metadata / Category: em_admin / Data content type: EM metadata / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Isoform 2 of Transcription activator BRG1
B: Histone H4
C: Histone H2A
D: Histone H2B 1.1
E: Histone H3
F: Histone H4
G: Histone H2A
H: Histone H2B 1.1
I: DNA (207-MER)
J: DNA (207-MER)
K: Histone H3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)407,74914
Polymers407,23211
Non-polymers5183
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: cross-linking
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 5 types, 9 molecules ABFCGDHEK

#1: Protein Isoform 2 of Transcription activator BRG1 / ATP-dependent helicase SMARCA4 / BRG1-associated factor 190A / BAF190A / Mitotic growth and ...ATP-dependent helicase SMARCA4 / BRG1-associated factor 190A / BAF190A / Mitotic growth and transcription activator / Protein BRG-1 / Protein brahma homolog 1 / SNF2-beta / SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4


Mass: 169597.938 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCA4, BAF190A, BRG1, SNF2B, SNF2L4 / Production host: Homo sapiens (human)
References: UniProt: P51532, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#2: Protein Histone H4


Mass: 11394.426 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P62799
#3: Protein Histone H2A


Mass: 14109.436 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h2aj, LOC494591, XELAEV_18003602mg / Production host: Escherichia coli (E. coli) / References: UniProt: Q6AZJ8
#4: Protein Histone H2B 1.1 / H2B1.1


Mass: 13965.265 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281
#5: Protein Histone H3


Mass: 15435.126 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: XELAEV_18002543mg / Production host: Escherichia coli (E. coli) / References: UniProt: A0A310TTQ1

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DNA chain , 2 types, 2 molecules IJ

#6: DNA chain DNA (207-MER)


Mass: 63679.574 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#7: DNA chain DNA (207-MER)


Mass: 64145.816 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 3 types, 3 molecules

#8: Chemical ChemComp-BEF / BERYLLIUM TRIFLUORIDE ION


Mass: 66.007 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: BeF3 / Feature type: SUBJECT OF INVESTIGATION
#9: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#10: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM

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Details

Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: The motor-nucleosome module of human chromatin remodeling PBAF-nucleosome complex
Type: COMPLEX / Entity ID: #1-#7 / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 208905 / Symmetry type: POINT

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