Transketolase

Categories: Photosynthesis

Transketolase and the Reactions of Thiamin Pyrophosphate

Transketolase, an enzyme of the Calvin Cycle of photosynthesis, catalyzes the transfer of a 2-carbon fragment from a 5-carbon keto sugar (D-xyulose-5-P) to a 5-carbon aldo sugar (D-ribose-5-P) to form a 7-carbon keto sugar (sedoheptulose-7-P) and a 3-carbon aldo sugar (glyceraldehyde-3-P).