Diphosphate-serine phosphotransferase () is an enzyme that catalyzes the chemical reaction
The enzyme characterised from Propionibacterium shermanii converts L-serine to phosphoserine by transferring a phosphate group from pyrophosphoric acid.
This enzyme is a transferase, specifically one transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is diphosphate:L-serine O-phosphotransferase. Other names in common use include pyrophosphate-serine phosphotransferase, and pyrophosphate-L-serine phosphotransferase.
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