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Polyphosphate—glucose phosphotransferase

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EC number  2.7.1.63
IntEnz  IntEnz view
ExPASy  NiceZyme view
CAS number  9033-50-5
BRENDA  BRENDA entry
KEGG  KEGG entry

In enzymology, a polyphosphate-glucose phosphotransferase (EC 2.7.1.63) is an enzyme that catalyzes the chemical reaction

(phosphate)n + D-glucose (phosphate)n-1 + D-glucose 6-phosphate

Thus, the two substrates of this enzyme are (phosphate)n and D-glucose, whereas its two products are (phosphate)n-1 and D-glucose 6-phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is polyphosphate:D-glucose 6-phosphotransferase. Other names in common use include polyphosphate glucokinase, polyphosphate-D-(+)-glucose-6-phosphotransferase, and polyphosphate-glucose 6-phosphotransferase. This enzyme participates in glycolysis / gluconeogenesis. It employs one cofactor, neutral salt.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1WOQ.

References

Polyphosphate—glucose phosphotransferase Wikipedia


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