methylarsonous acid + AH2 + O2 <=> arsenite + methanol + A + H(+)
methylarsonous acid + ah2 + o2 <=> arsenite + methanol + a + h(+)
methylarsonous acid + AH2 + O2 <=> arsenite + methanol + A + H(+)
methylarsonous acid + ah2 + o2 <=> arsenite + methanol + a + h(+)