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Updated: Jun 13, 2026

Quantitative Determination of De Novo Fatty Acid Synthesis in Brown Adipose Tissue Using Deuterium Oxide
Published on: May 12, 2023
An allostatic control of membrane lipid composition by SREBP1
Rachel M Hagen1, Sergio Rodriguez-Cuenca, Antonio Vidal-Puig
1University of Cambridge Metabolic Research Laboratories, Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge, UK. rmh51@cam.ac.uk
Abstract:
The maintenance of membrane lipid composition within strict limits is critical to maintain optimum cellular function. The biophysical properties of the membrane can be influenced among other factors by the saturation/unsaturation of the phospholipid fatty acyl chain. The rate-limiting enzyme in unsaturated fatty acid biosynthesis is the desaturase enzyme which in turn is regulated by the lipid transcription factor sterol regulatory element binding protein (SREBP1). In this review, we collect some evidence suggesting SREBP1 network as an important allostatic regulator necessary to maintain the pool of unsaturated fatty acid lipid species that can be incorporated into biological membranes.
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