Journal
NATURE CHEMICAL BIOLOGY
Volume 3, Issue 1, Pages 50-54Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nchembio832
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Funding
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [R01EB001991] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [P20GM072015] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS053087] Funding Source: NIH RePORTER
- NIBIB NIH HHS [EB001991] Funding Source: Medline
- NIGMS NIH HHS [GM072015] Funding Source: Medline
- NINDS NIH HHS [NS053087] Funding Source: Medline
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Control over the timing, location and level of protein activity in vivo is crucial to understanding biological function(1). Living systems are able to respond to external and internal stimuli rapidly and in a graded fashion by maintaining a pool of proteins whose activities are altered through post-translational modifications(2). Here we show that the process of protein trans-splicing(3) can be used to modulate enzymatic activity both in cultured cells and in Drosophila melanogaster. We used an optimized conditional protein splicing(4) system to rapidly trigger the in vivo ligation of two inactive fragments of firefly luciferase in a tunable manner. This technique provides a means of controlling enzymatic function with greater speed and precision than with standard genetic techniques and is a useful tool for probing biological processes.
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