atranorin + S-adenosyl-L-homocysteine => proatranorin III + S-adenosyl-L-methionine
atranorin + s-adenosyl-l-homocysteine => proatranorin iii + s-adenosyl-l-methionine
atranorin + S-adenosyl-L-homocysteine => proatranorin III + S-adenosyl-L-methionine
atranorin + s-adenosyl-l-homocysteine => proatranorin iii + s-adenosyl-l-methionine