2.3.1.229 4-coumaroyl-CoA + S-adenosyl-L-methionine - CoA + S-methyl-5'-thioadenosine + N-(4-coumaroyl)-L-homoserine lactone - ? 424576 2.3.1.229 4-O-methylcinnamoyl-CoA + S-adenosyl-L-methionine - CoA + S-methyl-5'-thioadenosine + N-(4-O-methylcinnamoyl)-L-homoserine lactone - ? 473029 2.3.1.229 additional information enzyme uses environmental 4-coumaric acid rather than fatty acids from cellular pools ? - ? 89