Search
Skip to Search Results- 10Triacylglycerol
- 4DGAT
- 3Brassica napus
- 3Directed evolution
- 3Saccharomyces-cerevisiae
- 2Camelina sativa
- 5Chen, Guanqun
- 5Weselake, Randall J.
- 4Caldo, Kristian Mark P.
- 4Xu, Yang
- 3Greer, Michael S.
- 3Mietkiewska, Elzbieta
- 7Agricultural, Food and Nutritional Science, Department of
- 7Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 5Graduate and Postdoctoral Studies (GPS), Faculty of
- 5Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 1Biological Sciences, Department of
- 1Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 2Campbell, Robert E. (Chemistry)
- 1Douglas, Donna (Department of Surgery)
- 1Harrison, D. Jed (Chemistry)
- 1Kneteman, Norman (Department of Surgery)
- 1Ozga, Jocelyn (Department of Agricultural, Food and Nutritional Science)
- 1Weselake, Randall (Department of Agricultural, Food and Nutritional Science)
-
A 10 kDa acyl-CoA binding protein (ACBP) from Brassica napus enhances acyl exchange between acyl-CoA and phosphatidylcholine
Download2009
Yurchenko, O. P., Stymne, S., Stahl, U., Moloney, M. M., Nykiforuk, C. L., Weselake, R. J. , Banas, A.
The gene encoding a 10-kDa acyl-CoA-binding protein (ACBP) from Brassica napus wasover-expressed in developing seeds of Arabidopsis thaliana. Biochemical analysis of T2andT3A. thaliana seeds revealed a significant increase in polyunsaturated fatty acids (FAs)(18:2cisD9,12and 18:3cisD9,12,15) at...
-
2020-03-01
Tian, Bo, Sun, Meijuan, Jayawardana, Kethmi, Wu, Ding, Chen, Guanqun
Castor oil contains approximately 90% ricinoleic acid (RA) which is stored mainly in the form of tri‐ricinoleic acid containing triacylglycerols (TAG). Ricinoleate is synthesized from oleate (18:1n‐9) esterified to the sn‐2 position of phosphatidylcholine (PtdCho) catalyzed by...
-
Spring 2013
Fluorescent protein (FP) technology is now an indispensible tool of biomedical research. Nevertheless, only a few members of the hundreds of existing FPs are generally regarded as the preferred options for most imaging applications. Accordingly, new FPs with ever-improved properties are in demand...
-
Directed Evolution Approaches for Improved Genetically Encoded Fluorescent Calcium Ion and Voltage Indicators
DownloadFall 2014
Fluorescent proteins (FP) have revolutionized our imaging technologies and facilitated visualization of biochemical and physiological processes occurring in complex biological systems, which has opened up a new and unprecedented era in cell biology. Although FPs mainly serve as passive...
-
Engineering Enhanced Performance in Plant Diacylglycerol Acyltransferase and Long-Chain Acyl-CoA Synthetase
DownloadSpring 2018
Triacylglycerol (TAG) is the major storage lipid in higher plants and has great nutritional and industrial value. Plant storage lipid biosynthesis involves different subcellular compartments and a complex network of enzymes and proteins. Among them, endoplasmic reticulum (ER)-bound diacylglycerol...
-
High-performance variants of plant diacylglycerol acyltransferase 1 generated by directed evolution provide insights into structure function
Download2017-09-10
Chen, Guanqun, Vanhercke, Thomas, Chen, Yongyan, Mietkiewska, Elzbieta, Siloto, Rodrigo M. P., Niesner, Nathalie, Xu, Yang, Caldo, Kristian Mark P., Weselake, Randall J., El Tahchy, Anna
Diacylglycerol acyltransferase 1 (DGAT1) catalyzes the acyl-CoA-dependent biosynthesis of triacylglycerol, the predominant component of seed oil. In some oil crops, including Brassica napus, the level of DGAT1 activity can have a substantial effect on triacylglycerol production....
-
Identification of a pair of phospholipid:diacylglycerol acyltransferases from developing flax (Linum usitatissiumum L.) seed catalyzing the selective production of trilinolenin
Download2013
Wickramarathna, Aruna D., Siloto, Rodrigo M. P., Mietkiewska, Elzbieta, Pan, Xue, Weselake, Randall J.
The oil from flax (Linum usitatissimum L.) has high amounts of α-linolenic acid (ALA; 18:3cisΔ9,12,15) and is one of the richest sources of omega-3 polyunsaturated fatty acids (ω-3-PUFAs). To produce ∼57% ALA in triacylglycerol (TAG), it is likely that flax contains enzymes that can efficiently...
-
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...
-
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...