EC Number   |
General Information |
Reference |
|---|
    3.1.3.4 | malfunction |
catalytically deficient FLAG-tagged H223L LPP1 mutant can form an oligomer with wild-type LPP1, whereby wild-type LPP1 activity is preserved in the oligomer |
690815 |
| 3.1.3.4 | malfunction |
cell death-inducing stresses are required for defense activation in DS1-phosphatidic acid phosphatase-silenced Nicotiana benthamiana |
751402 |
| 3.1.3.4 | malfunction |
cells lacking phosphatidate phosphatase are sensitive to exogenous fatty acids in the order of toxicity palmitoleic acid > oleic acid > palmitic acid |
-, 715630 |
| 3.1.3.4 | malfunction |
deletion of PAH1 leads to the accumulation of phosphatidic acid but also the concomitant reduction of 1,2-diacyl-sn-glycerol and triacylglycerol levels and changes in phosphatidylethanolamine and phosphatidylcholine amounts. Mammalian lipins can rescue the yeast pah1DELTA mutant. A septuple S/T-P Pah1p phosphorylation null mutant displays higher specific activity when compared to the wild-type enzyme. Mutations in Pah1p result in transcriptional derepression of UAS(INO)-containing genes. Overexpression of the more active septuple S/T-P Pah1p phosphorylation null mutant causes inositol auxotrophy, which can be rescued by the deletion of the Opi1p repressor. Pah1DELtAopi1DELTA double mutant exhibits a synergistic effect on the transcriptional derepression of two UAS(INO)-containing genes, INO1 and OPI3. PAH1 mutants display irregularly shaped nuclei with long stacks of membranes that contain nuclear pores and appear to be in contact with the nuclear envelope. Inactivation of the phosphatidic acid signals downstream of Pah1p by either deleting the transcriptional activator Ino2p or overexpressing the repressor Opi1p, can restore normal nuclear shape in nem1DELTA spo7DELTA or pah1DELTA deletion mutants |
710639 |
| 3.1.3.4 | malfunction |
depletion of LPP3 results in destabilization of beta-catenin, which in turn reduces fibronectin synthesis and deposition, which results in inhibition of endothelial cell migration. Reexpression of beta-catenin but not p120-catenin in LPP3-depleted endothelial cells restores de novo synthesis of fibronectin, which mediates endothelial cell migration and formation of branching point structures. LPP3-RAD mutant, which is defective for integrin binding and a LPP3-PD mutant, which is defective for phosphatase activity stimulate lymphoid enhancer binding factor 1-dependent transcription 3- or 5fold, respectively. The LPP3 mutant that lacks both adhesion and lipid phosphatase domains (hLPP3-RAD+PD) fails to stimulate luciferase activity |
709942 |
| 3.1.3.4 | malfunction |
double mutant pah1pah2 plants have decreased phosphatidic acid hydrolysis, thus affecting the eukaryotic pathway of galactolipid synthesis. Upon phosphate starvation, pah1pah2 plants are severely impaired in growth and membrane lipid remodeling. PAP activity in the supernatant fraction of pah1pah2 mutant leaves is decreased by approximately 40% as compared to that in wild-type leaves. Defect in PAP activity in vivo in rosette leaves of pah1pah2 mutants. Relative amount of phosphatidic acid increases to 1.61fold in pah1pah2 double mutants as compared to the wild-type. 26% increase in phosphatidic acid levels in pah1pah2 plants as compared to wild-type plants. The transgenic plants (35S::PAH1-GFP, pah1pah2 and 35S::PAH2-GFP, pah1pah2) recover the phenotype observed in pah1pah2 mutant. Endoplasmic reticulum-localized eukaryotic pathway of membrane lipid metabolism is compromised in pah1pah2 double mutants |
710418 |
| 3.1.3.4 | malfunction |
downregulating LPIN-1 by RNAi results in the appearance of membrane sheets and other abnormal structures in the peripheral endoplasmic reticulum. Lpin-1 RNAi causes defects in nuclear envelope breakdown, abnormal chromosome segregation and irregular nuclear morphology. RNAi of lipin results in reduced body size and defects in lipid storage |
709219 |
| 3.1.3.4 | malfunction |
enzyme deletion causes multiple phenotypes, especially severe hyphal defects, increased sensitivity to cell wall stress, and reduced virulence in mice |
750681 |
| 3.1.3.4 | malfunction |
fatty liver dystrophy mice carrying mutations within the lipin 1 gene display life-long deficiency in adipogenesis, insulin resistance, neonatal hepatosteatosis and hypertriglyceridemia, as well as increased atherosclerosis susceptibility. Lipin-1 deficiency results in the activation of the sterol regulatory element binding protein 1 and its target genes as well as in very high expression levels of stearoyl-CoA desaturase-1 and apoA-IV. Acute lipin-1 deficiency in the mouse liver abolishes fasting-induced activation of Ppara and several PPARalpha/PGC-1alpha target genes, such as Acadvl, Acadm and Fabp1 |
714316 |
| 3.1.3.4 | malfunction |
in fat pads from mice deficient for lipin 1 (fld mice) and in 3T3-L1 adipocytes depleted of lipin 1 there is increased expression of several nuclear factor of activated T-cells target genes including TNFalpha, resistin, FABP4 and PPARgamma. Lipin 1 with the highly conserved amino-terminal NLIP domain deleted (DELTAN) is capable of both interaction and repression |
709945 |
