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Skip to Search Results- 7Chen, Guanqun
- 5Weselake, Randall J.
- 5Xu, Yang
- 4Caldo, Kristian Mark P.
- 4Singer, Stacy D.
- 2Jayawardhane, Kethmi
- 7Agricultural, Food and Nutritional Science, Department of
- 7Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 2Graduate and Postdoctoral Studies (GPS), Faculty of
- 2Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
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Arabidopsis GPAT9 contributes to synthesis of intracellular glycerolipids but not surface lipids
Download2016
Jayawardhane, Kethmi, Tomasi, Pernell, Dyer, John M., Weselake, Randall J., Mietkiewska, Elzbieta, Singer, Stacy D., Chen, Guanqun
GLYCEROL-3-PHOSPHATE ACYLTRANSFERASE (GPAT) genes encode enzymes involved in glycerolipid biosynthesis in plants. Ten GPAT homologues have been identified in Arabidopsis. GPATs 4–8 have been shown to be involved in the production of extracellular lipid barrier polyesters. Recently, GPAT9 was...
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2018-03-03
Holic, Roman, Xu, Yang, Caldo, Kristian Mark P., Singer, Stacy D., Field, Catherine J., Weselake, Randall J., Chen, Guanqun
Punicic acid (PuA; 18: 3Δ 9cis,11trans,13cis ) is an unusual 18-carbon fatty acid bearing three conjugated double bonds. It has been shown to exhibit a myriad of beneficial bioactivities including anti-cancer, anti-diabetes, anti-obesity, antioxidant, and anti-inflammatory properties. Pomegranate...
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Spring 2018
Diacylglycerol acyltransferase 1 (DGAT1) is an integral membrane enzyme catalyzing the final and committed step in acyl-CoA-dependent triacylglycerol (TAG) biosynthesis. Previous metabolic control analysis showed that DGAT1 plays a substantial role in modulating the flow of carbon into seed oil...
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Characterization of a Type‐2 Diacylglycerol Acyltransferase from Haematococcus pluvialis Reveals Possible Allostery of the Recombinant Enzyme
Download2019-12-26
Nguyen, Trinh, Xu, Yang, Abdel-Hameed, Mona, Sorensen, John L., Singer, Stacy D., Chen, Guanqun
Haematococcus pluvialis is a green microalga used in the algal biotechnology industry that can accumulate considerable amounts of storage triacylglycerol (TAG) and astaxanthin, which is a high‐value carotenoid with strong antioxidant activity, under stress conditions. Diacylglycerol...
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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....
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Kinetic improvement of an algal diacylglycerol acyltransferase 1 via fusion with an acyl-CoA binding protein
Download2020-01-01
Xu, Yang, Caldo, Kristian Mark P., Falarz, Lucas, Jayawardhane, Kethmi, Chen, Guanqun
SUMMARY Microalgal oils in the form of triacylglycerols (TAGs) are broadly used as nutritional supplements and biofuels. Diacylglycerol acyltransferase (DGAT) catalyzes the final step of acyl-CoA-dependent biosynthesis of TAG and is considered a key target for manipulating oil production....
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Molecular and functional characterization of sn-glycerol-3-phosphate acyltransferase of plants
DownloadSpring 2011
sn-Glycerol-3-phosphate acyltransferase (GPAT) catalyzes the acylation of sn-1 position of sn-glycerol-3-phosphate to produce lysophosphatidic acid and Coenzyme A. GPATs are involved in several lipid synthetic pathways and play important physiological roles in plant development. The present...
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Plant sn‐Glycerol‐3‐Phosphate Acyltransferases: Biocatalysts Involved in the Biosynthesis of Intracellular and Extracellular Lipids
Download2018-05-31
Jayawardhane, Kethmi N., Singer, Stacy D., Weselake, Randall J., Chen, Guanqun
Acyl‐lipids such as intracellular phospholipids, galactolipids, sphingolipids, and surface lipids play a crucial role in plant cells by serving as major components of cellular membranes, seed storage oils, and extracellular lipids such as cutin and suberin. Plant lipids are also widely used to...
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Properties and Biotechnological Applications of Acyl‐CoA:diacylglycerol Acyltransferase and Phospholipid:diacylglycerol Acyltransferase from Terrestrial Plants and Microalgae
Download2018-07-30
Xu, Yang, Caldo, Kristian Mark P., Pal‐Nath, Dipasmita, Ozga, Jocelyn, Lemieux, M. Joanne, Weselake, Randall J., Chen, Guanqun
Triacylglycerol (TAG) is the major storage lipid in most terrestrial plants and microalgae, and has great nutritional and industrial value. Since the demand for vegetable oil is consistently increasing, numerous studies have been focused on improving the TAG content and modifying the fatty‐acid...