label: arsenic triglutathione + [thioredoxin]-dithiol + S-adenosyl-L-methionine + 2 H2O = methylarsonous acid + [thioredoxin]-disulfide + 3 glutathione + S-adenosyl-L-homocysteine + H(+)
label_lc: arsenic triglutathione + [thioredoxin]-dithiol + s-adenosyl-l-methionine + 2 h2o = methylarsonous acid + [thioredoxin]-disulfide + 3 glutathione + s-adenosyl-l-homocysteine + h(+)