Assay of stearoyl-CoA synthesis in microsomes from normal and Trembler mouse sciatic nerves

Using a new one-step technique which allows the characterization and a quantitative assay of long-chain acyl coenzyme A (acyl-CoA), the activity of the stearoyl-CoA synthetase was studied in the membrane fraction from sciatic nerves of normal and Trembler mice. A synthesis of acyl-CoAs was observed in both cases, but, whatever the experimental conditions, there was a two-fold increase of the specific activity of the ligase in the PNS of the Trembler mouse.