Fatty acid specificity. Cells were exposed for 15 min to 30 μM arachidonic acid (AA), eicosa-(11Z,14Z)-dienoic acid (EDA), linoleic acid (LA), eicosa-(11Z,14Z,17Z)-trienoic acid (ETA), and stearic acid (SA), respectively. Data show the percentage of 32P incorporation. ∗, P < 0.05.