3.3.1.1 adenosylhomocysteinase transferred, now EC 3.13.2.1 3.3.1.2 S-adenosyl-L-methionine hydrolase (L-homoserine-forming) transferred, now EC 3.13.2.2 3.3.1.3 ribosylhomocysteinase transferred to EC 3.2.1.148 3.3.1.B1 inosylhomocysteinase deleted, replaced by EC 3.13.2.B1