[Inactivation of pgsA gene affects biosynthesis and secretion of Escherichia coli alkaline phosphatase].
Inactivation of pgsA, which is responsible for biosynthesis of anionic phospholipid phosphatidylglycerol (PG), was shown to affect biosynthesis and secretion of alkaline phosphatase (PhoA) in Escherichia coli. A decrease in PG, but not in total anionic phospholipids, correlated with reduction of PhoA secretion, suggesting the role of PG in this process. A dramatic decrease in PG (from 18 to 3, but not 8, percent of the total phospholipids) inhibited not only secretion, but also synthesis of PhoA. In addition, pgsA inactivation expedited repression of PhoA synthesis by exogenous orthophosphate.
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region, 142290 Russia.
V V
VV
Golovastov
E V
EV
Anisimova
M A
MA
Nesmeianova
D000469:Alkaline Phosphatase / Q000096:biosynthesis* / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D020868:Gene Silencing; D010957:Plasmids; D017855:Transferases (Other Substituted Phosphate Groups) / Q000235:genetics*
D017855:Transferases (Other Substituted Phosphate Groups); C020676:CDP-diacylglycerol-glycerol-3-phosphate 3-phosphatidyltransferase; D000469:Alkaline Phosphatase