IUBMB Enzyme Nomenclature

EC 3.1.3.81

Accepted name: diacylglycerol diphosphate phosphatase

Reaction: 1,2-diacyl-sn-glycerol 3-diphosphate + H2O = 1,2-diacyl-sn-glycerol 3-phosphate + phosphate

Other name(s): DGPP phosphatase; DGPP phosphohydrolase; DPP1; DPPL1; DPPL2; PAP2; pyrophosphate phosphatase

Systematic name: 1,2-diacyl-sn-glycerol 3-phosphate phosphohydrolase

Comments: The bifunctional enzyme catalyses the dephosphorylation of diacylglycerol diphosphate to phosphatidate and the subsequent dephosphorylation of phosphatidate to diacylglycerol [cf. phosphatidate phosphatase (EC 3.1.3.4)]. It regulates intracellular levels of diacylglycerol diphosphate and phosphatidate, phospholipid molecules believed to play a signalling role in stress response [6]. The phosphatase activity of the bifunctional enzyme is Mg2+-independent and N-ethylmaleimide-insensitive and is distinct from the Mg2+-dependent and N-ethylmaleimide-sensitive enzyme EC 3.1.3.4 (phosphatidate phosphatase) [5]. The diacylglycerol pyrophosphate phosphatase activity in Saccharomyces cerevisiae is induced by zinc depletion, by inositol supplementation, and when cells enter the stationary phase [4].

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:

References:

1. Dillon, D.A., Wu, W.I., Riedel, B., Wissing, J.B., Dowhan, W. and Carman, G.M. The Escherichia coli pgpB gene encodes for a diacylglycerol pyrophosphate phosphatase activity. J. Biol. Chem. 271 (1996) 30548-30553. [PMID: 8940025]

2. Dillon, D.A., Chen, X., Zeimetz, G.M., Wu, W.I., Waggoner, D.W., Dewald, J., Brindley, D.N. and Carman, G.M. Mammalian Mg2+-independent phosphatidate phosphatase (PAP2) displays diacylglycerol pyrophosphate phosphatase activity. J. Biol. Chem. 272 (1997) 10361-10366. [PMID: 9099673]

3. Wu, W.I., Liu, Y., Riedel, B., Wissing, J.B., Fischl, A.S. and Carman, G.M. Purification and characterization of diacylglycerol pyrophosphate phosphatase from Saccharomyces cerevisiae. J. Biol. Chem. 271 (1996) 1868-1876. [PMID: 8567632]

4. Oshiro, J., Han, G.S. and Carman, G.M. Diacylglycerol pyrophosphate phosphatase in Saccharomyces cerevisiae. Biochim. Biophys. Acta 1635 (2003) 1-9. [PMID: 14642771]

5. Carman, G.M. Phosphatidate phosphatases and diacylglycerol pyrophosphate phosphatases in Saccharomyces cerevisiae and Escherichia coli. Biochim. Biophys. Acta 1348 (1997) 45-55. [PMID: 9370315]

6. Han, G.S., Johnston, C.N., Chen, X., Athenstaedt, K., Daum, G. and Carman, G.M. Regulation of the Saccharomyces cerevisiae DPP1-encoded diacylglycerol pyrophosphate phosphatase by zinc. J. Biol. Chem. 276 (2001) 10126-10133. [PMID: 11139591]

[EC 3.1.3.81 created 2010]


Return to EC 3.1.3 home page
Return to EC 3.1 home page
Return to EC 3 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page