both the membrane-bound and the soluble forms of the enzyme are inhibited by modifiers of thiols [ n-ethylmaleimide ( nem ) and p- ( chloromercuri ) phenylsulfonate ( pcms ) ] , vicinal dithiols [ phenylarsine oxide and diazenedicarboxylic acid bis ( dimethylamide ) ( diamide ) ] , and disulfides ( sulfite , sulfide , and cyanide ) .
C0012771
disulfides
C0038739
sulfide