the interaction between superoxide dismutase ( sod ) and peroxide , under anaerobic conditions in the presence of an oh radical scavenger , formate , and an indicator , nitro blue tetrazolium , involves five reactions and an equilibrium : ( table ; see text ) reaction 3 occurs at a rate that is proportional to both peroxide and enzyme with no kinetic evidence for any intermediate peroxide-enzyme complex .
C0014442
enzyme
C0026741
enzyme complex