Any enzyme catalyzing acetylation or deacetylation, as in the formation of N-acetylglutamate from glutamate plus acetyl-CoA, or the reverse; acetylase's are usually called acetyltransferases. ... (05 Mar 2000) ... 
Type: Term Pronunciation: a-sĕt′il-ās Definitions: 1. Any enzyme catalyzing acetylation or deacetylation, as in the formation of N-acetylglutamate from glutamate plus acetyl-CoA, or the reverse; acetylases are usually called acetyltransferases.
acetylase Any enzyme catalyzing acetylation or deacetylation.