Mitochondria are best known for their essential role in energy generation, but they are also the site of additional important cellular processes such as iron-sulfur (Fe-S) cluster assembly and the beta-oxidation of fatty acids [ 1].
With appreciation of the need to exclude unusual fatty acids from cellular membranes and an increasing knowledge of how wild plants achieve this through enzyme specialisation, we are now entering a period where metabolic engineering research can be anticipated to provide the solutions to assembly of high purity unusual fatty acids in oil crops.
Subsequent 2D NMR analyses of unfractionated ant venom then revealed the highly unstable heptacyclic alkaloid myrmicarin 430A, representing one of the first examples for natural products based on the oligomeric assembly of several similarly functionalized fatty-acid chains.
This Pks13 condensase is a non-iterative type I polyketide synthase that contains four catalytic domains required for the final assembly of mycolic acid from two fatty acid residues.
While SREBP-2 plays a major role in the regulation of cholesterol synthesis and uptake, and the SREBP-1a mainly regulate multiple facets of fatty acid synthesis and VLDL assembly [ 14, 15].
The second (ES 7) contains 7 genes including the complex I assembly factor ACAD9, ETFA and ETFB (involved in beta oxidation of fatty acids), and C1QBP (mitochondrial protein synthesis) [ 17].
These include a role for the COP9 signalosome in forespore membrane formation, sporulation-specific requirements for the p24 family of ER export cargo receptors, and the possible function of fatty acid metabolism in regulation of spore wall assembly.
One reason for limited success in oilseed bioengineering is the inadequate understanding of how to control the flux of fatty acids through various fatty acid modification, and triacylglycerol assembly pathways of the lipid metabolic network.
The presence of hydrophobic chain of fatty acid particularly, from both ends of the pyridine-nucleus enhances self-assembly through van der Waal interactions.
Liver triacylglyceride (TAG) levels are the result of the balance between influx of fatty acids, de novo lipogenesis, TAG synthesis and delivery by very low density lipoprotein (VLDL) assembly [ 10– 13].
