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- 6Enzyme kinetics
- 5Arabidopsis thaliana
- 4DGAT
- 3Saccharomyces-cerevisiae
- 2Brassica napus
- 6Chen, Guanqun
- 5Weselake, Randall J.
- 4Caldo, Kristian Mark P.
- 4Xu, Yang
- 3Greer, Michael S.
- 3Mietkiewska, Elzbieta
- 10Graduate and Postdoctoral Studies (GPS), Faculty of
- 10Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 8Agricultural, Food and Nutritional Science, Department of
- 8Agricultural, 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)
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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...
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Fall 2014
Quantitatively, nitrogen (N) has shown to be one of the most important nutrients for proper plant growth and development, and a key limiting factor in crop productivity. In the last 40 years, there has been a significant increase in the production of synthetic N-fertilizers, as well as an...
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Fall 2014
Monoamine oxidase enzymes are largely involved in the catabolism of biogenic amines. Two forms of the enzyme are socumented to exist, monoamine oxidase type A and B. The B form (MAO-B) of the enzyme has been noted to possess a high affinity site for some imidazoline ligands. This site (the I2...
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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...
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Down-Regulation of CELLULOSE SYNTHASE Expression in Arabidopsis Seeds as a Possible Means of Increasing Seed Oil and Protein Content, and Reducing Fibre Content
DownloadSpring 2017
Jayawardhane Rathnayaka,Kethmi N
Oleaginous seeds, with higher oil and protein content, have higher economic value in the seed oil industry. Meal resulting from the seed oil extraction process is a widely used protein source in animal feed. The reduction of the complex fibre component of seed tissues may direct more carbon into...
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Engineering Arabidopsis long-chain acyl-CoA synthetase 9 variants with enhanced enzyme activity
Download2018-12-17
Xu, Yang, Caldo, Kristian Mark P., Holic, Roman, Mietkiewska, Elzbieta, Ozga, Jocelyn, Rizvi, Syed Masood, Chen, Guanqun, Weselake, Randall
Long-chain acyl-CoA synthetase (LACS, EC 6.2.1.3) catalyzes the ATP-dependent activation of free fatty acid to form acyl-CoA, which in turn serves as the major acyl donor for various lipid metabolic pathways. Increasing the size of acyl-CoA pool by enhancing LACS activity appears to be a useful...
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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...
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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...
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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...