Fig. 4

In vitro methylation activity and substrate specificity of MTBSLS. a Methylation was tracked using a 3H-labeled methyl group (highlighted in blue) from the co-substrate AdoMet. “R” represents amino acid side chain. b Concentration-dependent methylation rate of L-Phe-SNAC (blue trace) and L-Leu-SNAC (orange trace) by isolated MTBSLS