... Hospital Oakland Research Institute,Oakland, CA, USA for performing G C/MS an alyses, and Pr ofessorWalter Miller, U niversity o f C alifornia, San Francisco for the gift ofN-62 StAR protein and StAR ... P450scc incorporated into phospholipid (PL) vesicles prepared from dioleoyl phosphatidylcholine containing15 mol% cardiolipin. Values for kcat and Kmare ± SE and are expressed as min)1 and mol ... ofdetectability only in human epidermal melanocytes and in a single melanoma line (SKMEL-188; representative panelFig. 1A). The l ower band detected in keratinocytes, squa-mous cell carcinoma and melanoma...