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Sensors 2010, 10(6), 5668-5682; doi:10.3390/s100605668

The Role of PAS Kinase in PASsing the Glucose Signal

1
Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA
2
Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
*
Author to whom correspondence should be addressed.
Received: 4 February 2010 / Revised: 20 March 2010 / Accepted: 12 May 2010 / Published: 4 June 2010
(This article belongs to the Special Issue Glucose Sensors)
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Abstract

PAS kinase is an evolutionarily conserved nutrient responsive protein kinase that regulates glucose homeostasis. Mammalian PAS kinase is activated by glucose in pancreatic beta cells, and knockout mice are protected from obesity, liver triglyceride accumulation, and insulin resistance when fed a high-fat diet. Yeast PAS kinase is regulated by both carbon source and cell integrity stress and stimulates the partitioning of glucose toward structural carbohydrate biosynthesis. In our current model for PAS kinase regulation, a small molecule metabolite binds the sensory PAS domain and activates the enzyme. Although bona fide PAS kinase substrates are scarce, in vitro substrate searches provide putative targets for exploration.
Keywords: PAS kinase; PASKIN; glucose sensor; protein phosphorylation; PAS domain; metabolic syndrome PAS kinase; PASKIN; glucose sensor; protein phosphorylation; PAS domain; metabolic syndrome
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Grose, J.H.; Rutter, J. The Role of PAS Kinase in PASsing the Glucose Signal. Sensors 2010, 10, 5668-5682.

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