Light-inducible gene regulation with engineered zinc finger proteins.

TitleLight-inducible gene regulation with engineered zinc finger proteins.
Publication TypeJournal Article
Year of Publication2014
AuthorsLR Polstein, and CA Gersbach
JournalMethods in molecular biology (Clifton, N.J.)
Start Page89
Pagination89 - 107
Date Published01/2014

The coupling of light-inducible protein-protein interactions with gene regulation systems has enabled the control of gene expression with light. In particular, heterodimer protein pairs from plants can be used to engineer a gene regulation system in mammalian cells that is reversible, repeatable, tunable, controllable in a spatiotemporal manner, and targetable to any DNA sequence. This system, Light-Inducible Transcription using Engineered Zinc finger proteins (LITEZ), is based on the blue light-induced interaction of GIGANTEA and the LOV domain of FKF1 that drives the localization of a transcriptional activator to the DNA-binding site of a highly customizable engineered zinc finger protein. This chapter provides methods for modifying LITEZ to target new DNA sequences, engineering a programmable LED array to illuminate cell cultures, and using the modified LITEZ system to achieve spatiotemporal control of transgene expression in mammalian cells.

Short TitleMethods in molecular biology (Clifton, N.J.)