Transaldolase vs. Transketolase — What's the Difference?

Transaldolase is an enzyme (EC 2.2.1.2) of the non-oxidative phase of the pentose phosphate pathway.

Transketolase encoded by the TKT gene is an enzyme of both the pentose phosphate pathway in all organisms and the Calvin cycle of photosynthesis. It catalyzes two important reactions, which operate in opposite directions in these two pathways.

(enzyme) An enzyme of the pentose phosphate pathway that catalyzes the chemical reaction sedoheptulose 7-phosphate + glyceraldehyde 3-phosphate $\backslash rightleftharpoons$ erythrose 4-phosphate + fructose 6-phosphate.

(biochemistry) An enzyme of both the pentose phosphate pathway in animals and the Calvin cycle of photosynthesis, which catalyzes two important reactions.