Polyphosphate kinase

In enzymology, a polyphosphate kinase (EC number|2.7.4.1) is an enzyme that catalyzes the chemical reaction

:ATP + (phosphate)n $ightleftharpoons$ ADP + (phosphate)n⁺1

Thus, the two substrates of this enzyme are ATP and (phosphate)n, whereas its two products are ADP and (phosphate)n+1.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. The systematic name of this enzyme class is ATP:polyphosphate phosphotransferase. This enzyme is also called polyphosphoric acid kinase. This enzyme participates in oxidative phosphorylation.

tructural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes PDB link|1XDO, PDB link|1XDP, and PDB link|2O8R.

References

*
*
*

External links

::"The CAS registry number for this enzyme class is CAS registry|9026-44-2."

Gene Ontology (GO) codes