Biosynthesis of uniformly labeled C- and C-arachidonic acid in Mortierella alpina.

Bioresour Technol

Department of Pharmacology, University of Pennsylvania, Philadelphia, PA 19104, United States; Departments of Biochemistry and Biophysics, and Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States. Electronic address:

Published: March 2017

AI Article Synopsis

  • Arachidonic acid (ARA) is a key polyunsaturated fatty acid in the brain, and its metabolic products have significant pharmacological effects.
  • A challenge in studying ARA is the lack of commercially available uniformly labeled isotopes for research.
  • This study presents a new protocol using Mortierella alpina to efficiently synthesize U-C-ARA from U-C-glucose, achieving high yields and purity for research applications.

Article Abstract

Arachidonic acid (ARA) is one of the most abundant polyunsaturated fatty acids (PUFAs) in the mammalian brain. Many enzymatically- and nonenzymatically-produced metabolic products have important and potent pharmacological properties. However, uniformly isotope labeled forms of ARA are not commercially available for studying the metabolic fates of ARA. This study describes a simple and efficient protocol for the biosynthesis of U-C-ARA from U-C-glucose, and U-C-ARA from U-C-glucose by Mortierella alpina. The protocols yield approximately 100nmol quantities of U-C-ARA with an isotopic purity of 95% from a 500μl batch volume, and approximately 2μCi quantities of U-C-ARA with an apparent specific activity in excess of 1200Ci/mol from a 250μl batch volume.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5237611PMC
http://dx.doi.org/10.1016/j.biortech.2016.12.050DOI Listing

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