6-Methylsalicylic acid synthetase from Penicillium patulum. Some catalytic properties of the enzyme and its relation to fatty acid synthetase.

1. The specificity of 6-methylsalicylic acid synthetase with respect to the priming substrate was studied. If acetyl-CoA was replaced by propionyl-CoA 6-ethylsalicylic acid was synthesized.