Proximity Induced Splicing Utilizing Caged Split Inteins.

TitleProximity Induced Splicing Utilizing Caged Split Inteins.
Publication TypeJournal Article
Year of Publication2019
AuthorsGramespacher, JA, Burton, AJ, Guerra, LF, Muir, TW
JournalJ Am Chem Soc
Volume141
Issue35
Pagination13708-13712
Date Published2019 Sep 04
ISSN1520-5126
Abstract

Naturally split inteins drive the ligation of separately expressed polypeptides through a process called protein trans splicing (PTS). The ability to control PTS, so-called conditional protein splicing (CPS), has led to the development of tools to modulate protein structure and function at the post-translational level. CPS applications that utilize proximity as a trigger are especially intriguing as they afford the possibility to activate proteins in both a temporal and spatially targeted manner. In this study, we present the first proximity triggered CPS method that utilizes a naturally split fast splicing intein, Npu. We show that this method is amenable to diverse proximity triggers and capable of reconstituting and locally activating the acetyltransferase p300 in mammalian cells. This technology opens up a range of possibilities for the use of proximity triggered CPS.

DOI10.1021/jacs.9b05721
Alternate JournalJ. Am. Chem. Soc.
PubMed ID31418547