preferred_name: L-homocysteine + adenosine => S-adenosyl-L-homocysteine + H2O
preferred_name_lc: l-homocysteine + adenosine => s-adenosyl-l-homocysteine + h2o
label: L-homocysteine + adenosine => S-adenosyl-L-homocysteine + H2O
label_lc: l-homocysteine + adenosine => s-adenosyl-l-homocysteine + h2o