preferred_name: a 2-oxocarboxylate + L-methionine => 4-methylsulfanyl-2-oxobutanoate + an L-alpha-amino acid
preferred_name_lc: a 2-oxocarboxylate + l-methionine => 4-methylsulfanyl-2-oxobutanoate + an l-alpha-amino acid
label: a 2-oxocarboxylate + L-methionine => 4-methylsulfanyl-2-oxobutanoate + an L-alpha-amino acid
label_lc: a 2-oxocarboxylate + l-methionine => 4-methylsulfanyl-2-oxobutanoate + an l-alpha-amino acid