1. Noun. (enzyme) Any enzyme that catalyzes transmethylation ¹
¹ Source: wiktionary.com
Medical Definition of Methyltransferase
1. That transfers a methyl group from S adenosyl methionine to a substrate. most commonly encountered in bacterial chemotaxis where the methyl accepting chemotaxis proteins (MCPs) become methylated in the course of adaptation.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
