Stearoyl-CoA desaturase (SCD) catalyses the rate-limiting step in the biosynthesis of monounsaturated fatty acids by the insertion of a a ^9-cis double bond into acyl-CoA substrates in the presence of NADH and molecular oxygen. Recent work with animals in which expression of the enzyme has been eliminated, suggests a critical role for this enzyme in regulating lipid metabolism and obesity.EThOS - Electronic Theses Online ServiceGBUnited Kingdo