This title appears in the Scientific Report : 2016 

Photocaged Arabinose - A Novel Optogenetic Switch for Rapid and Gradual Control of Microbial Gene Expression
Binder, Dennis
Bier, Claus / Grünberger, Alexander / Drobietz, Dagmar / Hage-Hülsmann, Jennifer / Wandrey, Georg / Büchs, Jochen / Kohlheyer, Dietrich / Loeschcke, Anita / Wiechert, Wolfgang / Jaeger, Karl-Erich / Pietruszka, Jörg / Drepper, Thomas (Corresponding author)
Institut für Molekulare Enzymtechnologie (HHUD); IMET
Biotechnologie; IBG-1
Institut für Bioorganische Chemie (HHUD); IBOC
ChemBioChem, 17 (2016) 4, S. 296-299
Weinheim Wiley-VCH 2016
Journal Article
Please use the identifier: in citations.
Controlling cellular functions by light allows simple triggering of biological processes in a non-invasive fashion with high spatiotemporal resolution. In this context, light-regulated gene expression has enormous potential for achieving optogenetic control over almost any cellular process. Here, we report on two novel one-step cleavable photocaged arabinose compounds, which were applied as light-sensitive inducers of transcription in bacteria. Exposure of caged arabinose to UV-A light resulted in rapid activation of protein production, as demonstrated for GFP and the complete violacein biosynthetic pathway. Moreover, single-cell analysis revealed that intrinsic heterogeneity of arabinose-mediated induction of gene expression was overcome when using photocaged arabinose. We have thus established a novel phototrigger for synthetic bio(techno)logy applications that enables precise and homogeneous control of bacterial target gene expression.