label: 3-hydroxyanthranilate + S-adenosyl-L-methionine = 3-hydroxy-4-methylanthranilate + S-adenosyl-L-homocysteine + H(+)
label_lc: 3-hydroxyanthranilate + s-adenosyl-l-methionine = 3-hydroxy-4-methylanthranilate + s-adenosyl-l-homocysteine + h(+)