FIG. 2.
Effect of pH on methyltransferase activities in 125 mM potassium phosphate (approximately in the range from pH 4.9 to 6.2), 125 mM triethanolamine (approximately in the range from pH 5.8 to 8.3), and 125 mM Tris-HCl (approximately in the range from pH 8.0 to 9.0). (A) GSMT with 25 mM glycine (●) and 25 mM sarcosine (○) as the substrates. (B) SDMT with 80 mM sarcosine (□) and 25 mM dimethylglycine (■) as the substrates.