cholesterol oxidase ( ec 1.1.3.6 , brevibacterium sp . ) , which catalyzes the reaction : cholesterol + o2 leads to delta4-cholestenone + h2o2 , has no effect on the cholesterol of intact ( human ) erythrocytes and of `` '' resealed '' '' ghosts , when it is present only outside these ghosts .
C2983553
delta4
C0086418
human