Apart from catalyzing the common two-substrate reaction with ketose as dono
r substrate and aldose as acceptor substrate, transketolase is also able to
catalyze a one-substrate reaction utilizing only ketose (xylulose B-phosph
ate) as substrate. The products of this one-substrate reaction were glycera
ldehyde 3-phosphate and erythrulose. No free glycolaldehyde (a product of x
ylulose B-phosphate splitting in the transketolase reaction) was revealed,
(C) 2001 Academic Press.