Figure 1.

Crystals of Meaban and of Yokose virus methyltransferases grown in the presence of 10 mM S-adenosyl-l-methionine. (a) ^MMTase crystal of about 120 × 35 × 35 µm in size. (b) ^YMTase crystals; the largest crystals are approximately 120 × 60 × 30 µm in size.