(-)-5'-demethylyatein + S-adenosyl-L-methionine = (-)-yatein + S-adenosyl-L-homocysteine + H(+)
(-)-5'-demethylyatein + s-adenosyl-l-methionine = (-)-yatein + s-adenosyl-l-homocysteine + h(+)
"5'-demethylyatein 5'-O-methyltransferase"
"5'-demethylyatein 5'-o-methyltransferase"