Phosphatidic acid in membrane rearrangements
نویسندگان
چکیده
منابع مشابه
Phosphatidic Acid Synthesis in Yeast.
1. The presence of palmitoyl-CoA-l-glycerol 1-phosphate palmitoyltransferase (EC2.3.1.15) has been demonstrated in a particulate fraction of baker's yeast. 2. The enzyme has been characterized, and its activity studied as a function of pH and concentration of substrates. 3. Inhibition by thiol poisons and protection by acyl-CoA have been used to obtain information on the active site. 4. By vari...
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Phosphatidic acid or 1,2-diacyl-sn-glycero-3-phosphate is not an abundant lipid constituent of any living organism to my knowledge, but it is extremely important as an intermediate in the biosynthesis of triacylglycerols and phospholipids and as a signalling molecule. Indeed, it is often over-estimated in tissues as it can arise by inadvertent enzymatic hydrolysis during inappropriate storage o...
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The second enzyme of phosphatidic acid synthesis from glycerol-3-phosphate, 1-acylglycerophospate acyltransferase, was localized to the inner envelope membrane of pea chloroplasts. The activity of this enzyme was measured by both a coupled enzyme assay and a direct enzyme assay. Using the coupled enzyme assay, phosphatidic acid phosphatase was also localized to the inner envelope membrane, alth...
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The kinetic properties of acyl-coenzyme A (CoA): l-alpha-glycerol-phosphate trans-acylase (EC 2.3.1.15) from Escherichia coli were studied. At 10 C, a temperature at which the reaction was proportional to time and enzyme concentration, the enzyme had an apparent K(m) of 60 mum for l-alpha-glycerol-phosphate. The curve describing the velocity of the reaction as a function of palmitoyl-CoA concen...
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Estimates of caged-release based on photolysis of caged-fluorescein In order to provide estimates on the concentration of PtdIns(4,5)P2 or Ins(1,4,5)P3 released upon photolysis, we quantified the apparent efficacy of caged fluorescein photolysis in the first 40-50 μm of the pollen tube; this probe becomes fluorescent upon photorelease and the light emitted from loaded cells can be compared to k...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 2019
ISSN: 0014-5793,1873-3468
DOI: 10.1002/1873-3468.13563