... Post-Beittenmiller, D & Jaworski, J.G (19 99) KCS1 encodes a fatty acid elongase 3-ketoacyl-CoA synthase a ecting wax biosynthesis in Arabidopsis thaliana Plant J 17 , 11 9 13 0 16 Venkateswari, J., Kanrar, S., Kirti, ... activity, microsomal proteins were incubated with [1- 14C ]18 :1- CoA and malonyl CoA The results of the elongase activity assays are summarized in Table The elongase activity in WS-wt was low as expected, ... one at position 11 8 with asparagine instead of aspartic acid, while at the position 484 in Hero, aspartic acid is substituted by a glutamic acid residue HEA B rapa FAE1 has a serine residue at...