Histone PTM Crosstalk Stimulates Dot1 Methyltransferase Activity

Trends Biochem Sci. 2021 Jul;46(7):522-524. doi: 10.1016/j.tibs.2021.04.001. Epub 2021 Apr 17.

Abstract

Valencia-Sánchez et al. have demonstrated that two histone post-translational modifications (PTMs) - H4K16 acetylation (H4K16ac) and H2BK120 ubiquitination (H2Bub) - enhance the methylation of H3K79 (H3K79me) by Dot1. This breakthrough indicates crosstalk between H4Kac/H2Bub/H3K79me and may improve our understanding of the role that Dot1/Dot1L plays in developmental processes and disease, including MLL1/KMT2A(MLL-r) leukemia.

Keywords: acetylation; leukemia; methylation; therapeutic targeting; ubiquitination.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Comment

MeSH terms

  • Acetylation
  • Histones* / metabolism
  • Methylation
  • Protein Processing, Post-Translational*
  • Ubiquitination

Substances

  • Histones