preferred_name: L-aspartate(89)-[ribosomal protein uS12]-hydrogen + [sulfur carrier]-SH + AH2 + 2 S-adenosyl-L-methionine => 3-methylsulfanyl-L-aspartate(89)-[ribosomal protein uS12]-hydrogen + [sulfur carrier]-H + 5'-deoxyadenosine + L-methionine + A + S-adenosyl-L-homocysteine + 2 H(+)