ID   2.7.7.34
DE   glucose-1-phosphate guanylyltransferase.
AN   GDP-glucose diphosphorylase.
AN   GDP-glucose pyrophosphorylase.
CA   alpha-D-glucose 1-phosphate + GTP + H(+) = diphosphate + GDP-D-glucose.
CC   -!- Also acts, more slowly, on D-mannose 1-phosphate.
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