Abstract
Cytosols (105000 X g supernatant) from seven rat tissues were assayed for Ca²⁺-independent phospholipase
A₂ activity with either 1-acyl-2-[1-¹⁴C]linoleoyl-sn-glycero-3-phosphocholine, 1-acyl-2-[l-¹⁴C]linoleoyl-snglycero-
3-phosphoethanohunine or 1-0-hexadecyl-2-[9,10-³H₂]oleoyl-sn-glycero-3-phosphocholine as substrate.
Low but consistent activities ranging from l0-120 pmol /min per mg protein were found in all
tissues. The highest activities were present in liver, lung and brain. Total activities
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