Total lipid class concentration time course of mock-infected versus MHV-68-infected cells. Mock-infected (control) and MHV-68-infected NIH 3T3 cells were harvested at 4, 8, 12, 24, or 36 hpi in three independent experiments. CE, cholesterol ester; CER, ceramides; DAG, diacylglycerol; DCER, dihydroceramides; FFA, free fatty acids; HCER, hexosylceramides; LPC, lysophosphatidylcholine; LPE, lysophosphatidylethanolamine; PC, phosphatidylcholine; PE, phosphatidylethanolamine; SM, sphingomyelin; TAG, triacylglycerol.