Search
Skip to Search Results- 12Phosphatidylcholine
- 10Triacylglycerol
- 6Enzyme kinetics
- 4DGAT
- 3Lipid Metabolism
- 3Saccharomyces-cerevisiae
- 4Chen, Guanqun
- 4Weselake, Randall J.
- 3Caldo, Kristian Mark P.
- 3Greer, Michael S.
- 3Xu, Yang
- 2Dyer, John M.
- 15Graduate and Postdoctoral Studies (GPS), Faculty of
- 15Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 9Agricultural, Food and Nutritional Science, Department of
- 9Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 1Biological Sciences, Department of
- 1Biological Sciences, Department of/Journal Articles (Biological Sciences)
-
Impaired de novo choline synthesis explains why phosphatidylethanolamine N-methyltransferase-deficient mice are protected from diet-induced obesity
Download2010
Kuo, Ming-Shang, Dyck, Jason R. B., Sletten, Torunn, Proctor, Spencer D., Jacobs, René L., Lingrell, Susanne, Cao, Guoqing, Peake, David A., Kennedy, Brian P., Zhao, Yang, Vance, Dennis E., Koonen, Debby P. Y., Su, Brian
Phosphatidylcholine (PC) is synthesized from choline via the CDP-choline pathway. Liver cells can also synthesize PC via the sequential methylation of phosphatidylethanolamine, catalyzed by phosphatidylethanolamine N-methyltransferase (PEMT). The current study investigates whether or not hepatic...
-
Spring 2013
Egg yolk contains approximately 10% (w/w) phospholipids (PL), of which about 70% is phosphatidylcholine (PC). Conventional methods of PL extraction from egg yolk involve using hazardous organic solvents. Supercritical carbon dioxide (SC-CO2), as a "green" solvent, had been applied for the...
-
In vivo and in vitro evidence for biochemical coupling of reactions catalyzed by lysophosphatidylcholine acyltransferase and diacyglycerol acyltransferase
Download2015
Greer, Michael S., Pan, Xue, Weselake, Randall J., Chen, Guanqun, Zou, Jitao, Caldo, Kristian Mark P., Kazachkov, Michael
Seed oils of flax (Linum usitatissimum L.) and many other plant species contain substantial amounts of polyunsaturated fatty acids (PUFAs). Phosphatidylcholine (PC) is the major site for PUFA synthesis. The exact mechanisms of how these PUFAs are channeled from PC into triacylglycerol (TAG) needs...
-
Insights into the role of CTP:phosphocholine cytidylyltransferase-alpha in hepatic lipid metabolism and cellular integrity
DownloadFall 2011
Lower levels of hepatic phosphatidylcholine (PC) are suggested to play a role in the pathogenesis of non-alcoholic steatohepatitis (NASH). Mice lacking hepatic CTP:phosphocholine cytidylyltransferase-α (LCTα-/-), the regulatory enzyme in the CDP-choline pathway for PC biosynthesis, were fed a...
-
Insights into the Transcriptional Regulation and Physiological Importance of Phosphatidylethanolamine N-Methyltransferase
DownloadSpring 2010
Phosphatidylcholine (PC) is made in all nucleated mammalian cells via the CDP-choline pathway. Another major pathway for PC biosynthesis in liver is catalyzed by phosphatidylethanolamine N-methyltransferase (PEMT). We have identified 3T3-L1 adipocytes as a cell culture model that expresses PEMT...
-
Multiple mechanisms contribute to increased neutral lipid accumulation in yeast producing recombinant variants of plant diacylglycerol acyltransferase 1
Download2017-09-01
Shah, Saleh, Xu, Yang, Ramakrishnan, Geetha, Caldo, Kristian Mark P., Chen, Guanqun, Ozga, Jocelyn, Greer, Michael S., Lemieux, M. Joanne, Wu, Limin, Weselake, Randall J.
The apparent bottleneck in the accumulation of oil during seed development in some oleaginous plant species is the formation of triacylglycerol (TAG) by the acyl-CoA-dependent acylation of sn-1,2- diacylglycerol catalyzed by diacylglycerol acyltransferase (DGAT, EC 2.3.1.20). Improving DGAT...
-
Physaria fendleri and Ricinus communis LCAT-like phospholipases selectively cleave hydroxy acyl chains from phosphatidylcholine
Download2020-10-27
Xu, Yang, Caldo, Kristian Mark P., Singer, Stacy D., Mietkiewska, Elzbieta, Greer, Michael S., Tian, Bo, Dyer, John M., Smith, Mark, Zhou, Xue-Rong, Qiu, Xiao, Weselake, Randall J., Chen, Guanqun
Producing hydroxy fatty acids (HFAs) in transgenic crops represents a promising strategy to meet our demands for specialized plant oils with industrial applications. The expression of Ricinus communis (castor) OLEATE 12-HYDROXYLASE (RcFAH12) in Arabidopsis has resulted in only...
-
Plant acyl-CoA:lysophosphatidylcholine acyltransferases (LPCATs) have different specificities in their forward and reverse reactions
Download2013
Heinz, Ernst, Zhou, Xue-Rong, Banas, Antoni, Green, Allan, Jasieniecka, Katarzyna, Weselake, Randall, Smith, Mark A., Stymne, Sten, Bayon, Shen, Zou, Jitao, Lager, Ida, Dyer, John M., Shockey, Jay M., Yilmaz, Jenny L., Wang, Peng, Kazachkov, Michael
Acyl-CoA:lysophosphatidylcholine acyltransferase (LPCAT) enzymes have central roles in acyl editing of phosphatidylcholine (PC). Plant LPCAT genes were expressed in yeast and characterized biochemically in microsomal preparations of the cells. Specificities for different acyl-CoAs were similar...