DTDP-3-amino-3,6-dideoxy-alpha-D-glucopyranose N,N-dimethyltransferase (, TylM1) is an enzyme with systematic name S-adenosyl-L-methionine:dTDP-3-amino-3,6-dideoxy-alpha-D-glucopyranose 3-N,N-dimethyltransferase. This enzyme catalyses the following chemical reaction
The enzyme is involved in the biosynthesis of mycaminose.