Engineered UV-A light-responsive gene expression system for measuring sun cream efficacy in mammalian cell culture
2014
Wieland, Markus | Müller, Marius | Kyburz, Andreas | Heissig, Phillip | Wekenmann, Sebastian | Stolz, Franziska | Ausländer, Simon | Fussenegger, Martin
Light-dependent gene regulation systems are advantageous as they allow for precise spatio-temporal control of target gene expression. In this paper, we present a novel UV-A and blue-light-inducible gene control system that is based on the light-dependent heterodimerization of the CRY2 and C1BN domains. Upon their interaction, a transcription factor is released from the cell membrane and initiates target gene expression. Capitalizing on that, sun cream UV-A protection properties were measured intracellularly.
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