Glucose-6-phosphatase biochemistry

Fig. 2.9 Synthesis of sucrose. See text (Modified from Fig. 20-13 in Berg JM, Tymoczko JL and Stiver L. Biochemistry, 5th Ed. 2002. W.H. Freeman Co., New York to also show the phosphatase step). Note The diagram of fructose in this figure (red) is rotated so that its anomeric carbon atom (C2) lies to the right of the ring structure instead of the left as in a conventional diagram. Because of the rotation, it is not obvious that the fructose bond in sucrose is in the (3-anomeric configuration. Only the glucose bond is in the a-anomeric configuration. The conventional diagrams of glucose and fructose alone and in sucrose are illustrated in Fig. 15.6.

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