Abstract
Loss- and gain-of-function transgenic models are powerful tools for understanding gene function invivo but are limited in their ability to determine relative protein requirements. To determine cell-specific, temporal, or dose requirements of complex pathways, new methodology is needed. This is particularly important for deconstructing metabolic pathways that are highly interdependent and cross-regulated. We have combined mouse conditional transgenics and synthetic posttranslational protein stabilization to produce a broadly applicable strategy to regulate protein and pathway function in a cell-autonomous manner invivo. Here, we show howa targeted chemical-genetic strategy can be used to alter fatty acid metabolism in a reombination and small-molecule-dependent manner in live behaving transgenic mice. This provides a practical, specific, and reversible means of manipulating metabolic pathways in adult mice to provide biological insight.
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