20194-46-1Relevant academic research and scientific papers
Biosynthetic Studies of Marine Lipids. 5. The Biosynthesis of Long-Chain Branched Fatty Acids in Marine Sponges
Carballeira, Nestor,Thompson, Janice E.,Ayanoglu, Eser,Djerassi, Carl
, p. 2751 - 2756 (1986)
The very long chain branched fatty acids 25-methyl-5,9-hexacosadienoic (Δ5,9-iso-27:2)-and 24-methyl-5,9-hexacosadienoic (Δ5,9-anteiso-27:2) acids as well as the straight-chain 5,9-hexacosadienoic (Δ5,9-26:2) acid were shown to originate from the short-chain precursors 13-methyltetradecanoic (iso-15:0), 12-methyltetradecanoic (anteiso-15:0), and palmitic (n-16:0) acids, respectively, by means of 14C incorporation experiments in the marine sponge Jaspis stellifera.These results confirm that methyl branching does not occur after chain elongation.The unusual Δ5,9 unsaturation probably takes place after chain elongation of short branched or straight-chain fatty acids.
