A variety of different lipids have been identified in breast milk. (verywellfamily.com)
The finding that SREBP processing is controlled by different lipids in mammals and flies (sterols and phosphatidylethanolamine, respectively) suggests that an essential function of SREBP is to monitor cell membrane composition and to adjust lipid synthesis accordingly. (science.sciencemag.org)
An enzyme encoded by a single gene, for example, can regulate the synthesis of many different lipids. (scientificamerican.com)