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The stereochemical course of phosphoryl transfer catalysed by glucose 6-phosphatase.

ABSTRACT: Rat liver microsomal glucose 6-phosphatase catalyses phosphoryl transfer between D-glucose 6-[(R)-16O,17O,18O]phosphate and D-glucose with retention of configuration at the phosphorus atom. Since individual phosphoryl-transfer steps appear in general to occur with inversion of configuration, this observation is most simply interpreted in terms of a double-displacement mechanism with a phosphoryl-enzyme intermediate. Such an intermediate has been proposed previously from kinetic and 32P-labelling experiments.

SUBMITTER: Lowe G

PROVIDER: S-EPMC1163697 | biostudies-other | 1982 Mar

REPOSITORIES: biostudies-other

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The stereochemical course of phosphoryl transfer catalysed by glucokinase.

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