Which is not a product of the pentose phosphate pathway?
Correct Answer: O2
Description: Step 5: Transketolase Reaction - Transketolase is a thiamine pyrophosphate (TPP) dependent enzyme. It transfers two-carbon unit (with keto group) from xylulose-5-phosphate to ribose-5-phosphate to form a 7 carbon sugar, sedoheptulose-7-phosphate and glyceraldehyde-3- phosphate. Transketolase enzyme will transfer the group from a donor ketose to an aldose acceptor. In thiamine deficiency transketolase activity is decreased. The reaction may be summarized as 5C + 5C = 7C + 3C. REF: DM VASUDEVAN TEXTBOOK OF BIOCHEMISTRY, SIXTH EDITION,PG.NO.,114.
Category:
Biochemistry
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