This pathway is inspired by the Lipidmaps>Omega-3 and omega-6 fatty acids) [https://lipidmaps.org/pathway/pathways_maps]. Omega-3 and omega-6 FAs (Fatty acids) are important fats obtained from diet, and are both polyunsaturated (indicating many double bonds in the lipid tail).The position of the double bond is given in the name of the lipid, for example 22:2(13Z,16Z) means a tail length of 22 carbons, with 2 double bond. One double bond is at the 13 Carbon, the second on the 16th.This number is counted from the tail end of the lipid chain (indicating that the example lipid is a 22 - 16 = omega-6 FA). e46 aka CoA(20:4) aka 11,14-eicosadienoic acid aka 5,8,11,14,17-eicosapentaenoic acid aka 13,16-docodadienoic acid AKA 11,14,17-eicosatrienoic acid Multistep process (as indicated in original LipidMaps PW) Multistep process (as indicated in original LipidMaps PW) Multistep process (as indicated in original LipidMaps PW) fatty acid omega degradation pathway PW:0001253 Pathway Ontology fatty acid elongation pathway PW:0001136 Pathway Ontology unsaturated fatty acid biosynthetic pathway PW:0001137 Pathway Ontology 20923771 PubMed A mouse macrophage lipidome. J Biol Chem 2010 Dennis EA Deems RA Harkewicz R Quehenberger O Brown HA Milne SB Myers DS Glass CK Hardiman G Reichart D Merrill AH Jr Sullards MC Wang E Murphy RC Raetz CR Garrett TA Guan Z Ryan AC Russell DW McDonald JG Thompson BM Shaw WA Sud M Zhao Y Gupta S Maurya MR Fahy E Subramaniam S fatty acid metabolic pathway PW:0000058 Pathway Ontology