Heterochromatin aggregation during DNA elimination in Tetrahymena is facilitated by a prion-like protein.

نویسندگان

  • Kensuke Kataoka
  • Kazufumi Mochizuki
چکیده

Regulated aggregations of prion and prion-like proteins play physiological roles in various biological processes. However, their structural roles in the nucleus are poorly understood. Here, we show that the prion-like protein Jub6p is involved in the regulation of chromatin structure in the ciliated protozoan Tetrahymena thermophila Jub6p forms sodium dodecyl sulfate (SDS)-resistant aggregates when it is ectopically expressed in vegetative cells and binds to RNA in vitro Jub6p is a heterochromatin component and is important for the formation of heterochromatin bodies during the process of programmed DNA elimination. We suggest that RNA-protein aggregates formed by Jub6p are an essential architectural component for the assembly of heterochromatin bodies.

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عنوان ژورنال:
  • Journal of cell science

دوره 130 2  شماره 

صفحات  -

تاریخ انتشار 2017