The protein that regulates the Calvin cycle is:
A) protein kinase C.
B) rubisco.
C) thioredoxin.
D) ferredoxin-thioredoxin reductase.
E) None of the above.

Question

Quizplus · Accepted Answer

Thioredoxin is a regulatory protein involved in the reduction of other proteins. It is crucial in the activation of key enzymes in the Calvin cycle, including phosphoribulokinase, SBPase, and FBPase. Thioredoxin provides reducing power to these enzymes and promotes their activity, thereby controlling the rate of carbon fixation in the Calvin cycle.

The Protein That Regulates the Calvin Cycle Is