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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Biochim Biophys Acta. 2016 Jun 15;1861(9 Pt A):1102–1110. doi: 10.1016/j.bbalip.2016.06.003

Fig. 1. Proposed alternative pathway for provision of acyl CoA precursors for fatty acid biosynthesis.

Fig. 1

Schematic showing the proposed sequential conversion of exogenous carboxylic acids into their acyl CoA derivatives by the activity of Buk and Ptb and their subsequent incorporation into membrane fatty acids. R-indicates SCCAs or BCCAs. Absence of functional Bkd allows greater incorporation of the products of the alternate pathway into the membrane fatty acids.