preferred_name: L-histidine + 3 S-adenosyl-L-methionine = hercynine + 3 S-adenosyl-L-homocysteine + 3 H(+)
preferred_name_lc: l-histidine + 3 s-adenosyl-l-methionine = hercynine + 3 s-adenosyl-l-homocysteine + 3 h(+)
label: "L-histidine N(alpha)-methyltransferase"
label_lc: "l-histidine n(alpha)-methyltransferase"