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TitleStructure of the RSC complex bound to the nucleosome.
Journal, issue, pagesScience, Vol. 366, Issue 6467, Page 838-843, Year 2019
Publish dateNov 15, 2019
AuthorsYoupi Ye / Hao Wu / Kangjing Chen / Cedric R Clapier / Naveen Verma / Wenhao Zhang / Haiteng Deng / Bradley R Cairns / Ning Gao / Zhucheng Chen /
PubMed AbstractThe RSC complex remodels chromatin structure and regulates gene transcription. We used cryo-electron microscopy to determine the structure of yeast RSC bound to the nucleosome. RSC is delineated into ...The RSC complex remodels chromatin structure and regulates gene transcription. We used cryo-electron microscopy to determine the structure of yeast RSC bound to the nucleosome. RSC is delineated into the adenosine triphosphatase motor, the actin-related protein module, and the substrate recruitment module (SRM). RSC binds the nucleosome mainly through the motor, with the auxiliary subunit Sfh1 engaging the H2A-H2B acidic patch to enable nucleosome ejection. SRM is organized into three substrate-binding lobes poised to bind their respective nucleosomal epitopes. The relative orientations of the SRM and the motor on the nucleosome explain the directionality of DNA translocation and promoter nucleosome repositioning by RSC. Our findings shed light on RSC assembly and functionality, and they provide a framework to understand the mammalian homologs BAF/PBAF and the Sfh1 ortholog INI1/BAF47, which are frequently mutated in cancers.
External linksScience / PubMed:31672915
MethodsEM (single particle)
Resolution3.4 - 7.55 Å
Structure data

EMDB-0777, PDB-6kw3:
The ClassA RSC-Nucleosome Complex
Method: EM (single particle) / Resolution: 7.13 Å

EMDB-0778, PDB-6kw4:
The ClassB RSC-Nucleosome Complex
Method: EM (single particle) / Resolution: 7.55 Å

EMDB-9905, PDB-6k15:
RSC substrate-recruitment module
Method: EM (single particle) / Resolution: 3.4 Å

Chemicals

ChemComp-ZN:
ZINC ION / Zinc

Source
  • saccharomyces cerevisiae s288c (yeast)
  • xenopus laevis (African clawed frog)
  • homo sapiens (human)
  • Baker's yeast (baker's yeast)
  • saccharomyces cerevisiae (strain atcc 204508 / s288c) (yeast)
KeywordsActins / BANF1 protein, human / Cell Cycle Proteins / Chromatin / Chromosomal Proteins, Non-Histone / Cryoelectron Microscopy / DNA-Binding Proteins / Nucleosomes / Protein Domains / RSC complex, S cerevisiae / SFH1 protein, S. cerevisiae / SMARCB1 Protein / SMARCB1 protein, human / Saccharomyces cerevisiae Proteins / Transcription Factors / DNA BINDING PROTEIN / chromatin remodeler / SWI/SNF family / DNA BINDING PROTEIN/DNA / DNA BINDING PROTEIN-DNA complex

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