Spatiotemporal dynamics of SETD5-containing NCoR-HDAC3 complex determines enhancer activation for adipogenesis

Nat Commun. 2021 Dec 2;12(1):7045. doi: 10.1038/s41467-021-27321-5.

Abstract

Enhancer activation is essential for cell-type specific gene expression during cellular differentiation, however, how enhancers transition from a hypoacetylated "primed" state to a hyperacetylated-active state is incompletely understood. Here, we show SET domain-containing 5 (SETD5) forms a complex with NCoR-HDAC3 co-repressor that prevents histone acetylation of enhancers for two master adipogenic regulatory genes Cebpa and Pparg early during adipogenesis. The loss of SETD5 from the complex is followed by enhancer hyperacetylation. SETD5 protein levels were transiently increased and rapidly degraded prior to enhancer activation providing a mechanism for the loss of SETD5 during the transition. We show that induction of the CDC20 co-activator of the ubiquitin ligase leads to APC/C mediated degradation of SETD5 during the transition and this operates as a molecular switch that facilitates adipogenesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3T3-L1 Cells
  • Acetylation
  • Adipogenesis / genetics*
  • Anaphase-Promoting Complex-Cyclosome / genetics
  • Anaphase-Promoting Complex-Cyclosome / metabolism
  • Animals
  • CCAAT-Enhancer-Binding Proteins / genetics*
  • CCAAT-Enhancer-Binding Proteins / metabolism
  • Cdc20 Proteins / genetics
  • Cdc20 Proteins / metabolism
  • Enhancer Elements, Genetic
  • Gene Expression Regulation
  • HEK293 Cells
  • Histone Deacetylases / genetics*
  • Histone Deacetylases / metabolism
  • Histones / genetics
  • Histones / metabolism
  • Humans
  • Methyltransferases / genetics*
  • Methyltransferases / metabolism
  • Mice
  • Mice, Nude
  • Nuclear Receptor Co-Repressor 1 / genetics*
  • Nuclear Receptor Co-Repressor 1 / metabolism
  • PPAR gamma / genetics*
  • PPAR gamma / metabolism
  • Protein Binding
  • Proteolysis
  • Sf9 Cells
  • Signal Transduction

Substances

  • CCAAT-Enhancer-Binding Proteins
  • CEBPA protein, mouse
  • Cdc20 Proteins
  • Cdc20 protein, mouse
  • Histones
  • Ncor1 protein, mouse
  • Nuclear Receptor Co-Repressor 1
  • PPAR gamma
  • Pparg protein, mouse
  • Methyltransferases
  • SETD5 protein, mouse
  • Anaphase-Promoting Complex-Cyclosome
  • Histone Deacetylases
  • histone deacetylase 3