A New Phospholipase D from Moritella sp. JT01: Biochemical Characterization, Crystallization and Application in the Synthesis of Phosphatidic Acid
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Published:2022-10-01
Issue:19
Volume:23
Page:11633
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ISSN:1422-0067
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Container-title:International Journal of Molecular Sciences
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language:en
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Short-container-title:IJMS
Author:
Wang FanghuaORCID,
Mao Xuejing,
Deng Fuli,
Cui Ruiguo,
Li Lilang,
Liu SiyuORCID,
Yang Bo,
Lan Dongming,
Wang Yonghua
Abstract
A new phospholipase D from marine Moritella sp. JT01 (MsPLD) was recombinantly expressed and biochemically characterized. The optimal reaction temperature and pH of MsPLD were determined to be 35 °C and 8.0. MsPLD was stable at a temperature lower than 35 °C, and the t1/2 at 4 °C was 41 days. The crystal structure of apo-MsPLD was resolved and the functions of a unique extra loop segment on the enzyme activity were characterized. The results indicated that a direct deletion or fastening of the extra loop segment by introducing disulfide bonds both resulted in a complete loss of its activity. The results of the maximum insertion pressure indicated that the deletion of the extra loop segment significantly decreased MsPLD’s interfacial binding properties to phospholipid monolayers. Finally, MsPLD was applied to the synthesis of phosphatidic acid by using a biphasic reaction system. Under optimal reaction conditions, the conversion rate of phosphatidic acid reached 86%. The present research provides a foundation for revealing the structural–functional relationship of this enzyme.
Funder
National Natural Science Foundation of China
National Outstanding Youth Science Foundation of China
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis
Reference39 articles.
1. Biophysics and function of phosphatidic acid: A molecular perspective;Kooijman;Biochim. Et Biophys. Acta,2009
2. Phosphatidic acid: An emerging versatile class of cellular mediators;Kim;Essays Biochem.,2020
3. Signaling functions of phosphatidic acid;Wang;Prog. Lipid Res.,2006
4. Phosphatidic acid biosynthesis in the model organism yeast Saccharomyces cerevisiae—A survey;Athenstaedt;Biochim. Biophys. Acta Mol. Cell Biol. Lipids,2021
5. Phospholipase D and phosphatidic acid in plant immunity;Li;Plant Sci. Int. J. Exp. Plant Biol.,2019