preferred_name: precorrin-2 + S-adenosyl-L-methionine = precorrin-3A + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: precorrin-2 + s-adenosyl-l-methionine = precorrin-3a + s-adenosyl-l-homocysteine + h(+)
label: "precorrin-2 C20-methyltransferase"
label_lc: "precorrin-2 c20-methyltransferase"