The protein part of a conjugated enzyme, which on its own is catalytically inactive, is called the
- A. prosthetic group
- B. apoenzyme
- C. holoenzyme
- D. co-substrate
Explanation
The apoenzyme needs its non-protein partner, the cofactor, to become the active holoenzyme. Calling the whole active complex the apoenzyme is a common slip, so remember that holoenzyme equals apoenzyme plus cofactor.
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