SUMOylated SoxE factors recruit Grg4 and function as transcriptional repressors in the neural crest.

ABSTRACT: A growing number of transcriptional regulatory proteins are known to be modified by the small ubiquitin-like protein, SUMO. Posttranslational modification by SUMO may be one means by which transcriptional regulatory factors that play context-dependent roles in multiple processes can be regulated such that they direct the appropriate cellular and developmental outcomes. In early vertebrate embryos, SUMOylation of SoxE transcription factors profoundly affects their function, inhibiting their neural crest-inducing activity and promoting ear formation. In this paper, we provide mechanistic insight into how SUMO modification modulates SoxE function. We show that SUMOylation dramatically altered recruitment of transcriptional coregulator factors by SoxE proteins, displacing coactivators CREB-bin

SUBMITTER: Lee PC 

PROVIDER: S-EPMC3432773 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature