Pyridoxine 5'-phosphate synthase
- Pyridoxine 5'-phosphate synthase
In enzymology, a pyridoxine 5'-phosphate synthase (EC number|2.6.99.2) is an enzyme that catalyzes the chemical reaction
:1-deoxy-D-xylulose 5-phosphate + 3-amino-2-oxopropyl phosphate pyridoxine 5'-phosphate + phosphate + 2 H2O
Thus, the two substrates of this enzyme are 1-deoxy-D-xylulose 5-phosphate and 3-amino-2-oxopropyl phosphate, whereas its 3 products are pyridoxine 5'-phosphate, phosphate, and H2O.
This enzyme belongs to the family of transferases, specifically those transferring nitrogenous groups transferring other nitrogenous groups. The systematic name of this enzyme class is 1-deoxy-D-xylulose-5-phosphate:3-amino-2-oxopropyl phosphate 3-amino-2-oxopropyltransferase (phosphate-hydrolysing; cyclizing). Other names in common use include pyridoxine 5-phosphate phospho lyase, PNP synthase, and PdxJ. This enzyme participates in vitamin b6 metabolism.
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