scholarly journals Therapeutic Targets in Chlamydial Fatty Acid and Phospholipid Synthesis

2018 ◽  
Vol 9 ◽  
Author(s):  
Jiangwei Yao ◽  
Charles O. Rock
Cell ◽  
2020 ◽  
Vol 180 (1) ◽  
pp. 135-149.e14 ◽  
Author(s):  
Maximilian Schütter ◽  
Patrick Giavalisco ◽  
Susanne Brodesser ◽  
Martin Graef

1980 ◽  
Vol 58 (7) ◽  
pp. 527-533 ◽  
Author(s):  
P. J. A. O'Doherty

The effects of ethanolamine, choline, and different fatty acids on phospholipid synthesis via the CDP-ester pathways were studied in isolated rat intestinal villus cells. The incorporation of [14C]glucose into phosphatidylethanolamine was stimulated severalfold by the addition of ethanolamine and long-chained unsaturated fatty acids, while the addition of lauric acid inhibited the incorporation of radioactivity into phosphatidylethanolamine. At concentrations of ethanolamine higher than 0.2 mM, phosphoethanolamine accumulated, but the concentration of CDP-ethanolamine and the incorporation of radioactivity into phosphatidylethanolamine did not increase further. The incorporation of [14C]glucose into phosphatidylcholine responded in a way similar to that of phosphatidylethanolamine, except that a 10-fold higher concentration of choline was required for maximal stimulation. CCC inhibited the incorporation of choline into phosphatidylcholine. In contrast with hepatocytes, villus cells did not form phosphatidylcholine via phospholipid N-methylation. The data indicate that, in intestinal villus cells, the cytidylyltransferase reactions are rate limiting in the synthesis of phosphatidylethanolamine and probably also of phosphatidylcholine. The availability of diacylglycerol and its fatty acid composition may also significantly affect the rate of phospholipid synthesis.


2010 ◽  
Vol 163 ◽  
pp. S29
Author(s):  
Josef Ecker ◽  
Gerhard Liebisch ◽  
Marion Englmaier ◽  
Margot Grandl ◽  
Horst Robenek ◽  
...  

1968 ◽  
Vol 110 (4) ◽  
pp. 49P-50P ◽  
Author(s):  
M I Gurr ◽  
M P Robinson ◽  
R W Sword ◽  
A T James

1984 ◽  
Vol 62 (6) ◽  
pp. 375-378 ◽  
Author(s):  
Pierre Leblanc ◽  
Gerhard E. Gerber

The photoreactive ω-diazirinophenoxy derivatives of nonanoate, undecanoate, tridecanoate, and pentadecanoate were shown to be activated by rat liver microsomes to the corresponding acyl-CoA derivatives. The Km and Vmax for these fatty acid analogues were determined; the values obtained indicate that the addition of a photoreactive group to an alkyl chain has an effect similar to that of elongation of the chain by about seven carbons. Incubation of microsomes in the presence of lysophospholipids resulted in the incorporation of the photoreactive fatty acids into the corresponding phospholipids. The ability of mammalian systems to utilize these photoreactive fatty acids for phospholipid synthesis establishes their suitability as photoaffinity analogues of fatty acids.


2021 ◽  
Author(s):  
Sumie Eto ◽  
Rumie Matsumura ◽  
Mai Fujimi ◽  
Yasuhiro Shimane ◽  
Samuel Berhanu ◽  
...  

Phospholipid synthesis is a fundamental process that promotes cell propagation and, presently, is the most challenging issue in artificial cell research aimed at reconstituting living cells from biomolecules. Here, we constructed a cell-free phospholipid synthesis system that combines in vitro fatty acid synthesis and a cell-free gene expression system that synthesizes acyltransferases for phospholipid synthesis. Fatty acids were synthesized from acetyl-CoA and malonyl-CoA, then continuously converted into phosphatidic acids by the cell-free synthesized acyltransferases. Because the system can avoid the accumulation of synthetic intermediates that suppress the reaction, the yield of phospholipid has significantly improved from previous schemes (up to 400 μM). Additionally, by adding enzymes for recycling CoA, we synthesized phosphatidic acids from acetic acid and bicarbonate as carbon sources. The constructed system is available to express the genes from pathogenic bacteria and to analyze the synthesized phospholipids. By encapsulating our system inside giant vesicles, it would be possible to construct the artificial cells in which the membrane grows and divides sustainably.


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