label: myo-inositol + S-adenosyl-L-methionine = 1D-3-O-methyl-myo-inositol + S-adenosyl-L-homocysteine + H(+)
label_lc: myo-inositol + s-adenosyl-l-methionine = 1d-3-o-methyl-myo-inositol + s-adenosyl-l-homocysteine + h(+)