norcoclaurine + S-adenosyl-L-methionine <=> coclaurine + S-adenosyl-L-homocysteine + H(+)
norcoclaurine + s-adenosyl-l-methionine <=> coclaurine + s-adenosyl-l-homocysteine + h(+)
norcoclaurine + S-adenosyl-L-methionine <=> coclaurine + S-adenosyl-L-homocysteine + H(+)
norcoclaurine + s-adenosyl-l-methionine <=> coclaurine + s-adenosyl-l-homocysteine + h(+)