ω3 fatty acid desaturases from microorganisms: structure, function, evolution, and biotechnological use.
ω3 fatty acid desaturases from microorganisms: structure, function, evolution, and biotechnological use.
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Ø3 微生物脂肪酸去饱和酶:结构、功能、进化和生物技术用途
DOI:
10.1007/s00253-013-5336-5
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发表时间:
2013-12
影响因子:
5
通讯作者:
Chen, Yong Q.
中科院分区:
文献类型:
--
作者:
Wang, Mingxuan;Chen, Haiqin;Gu, Zhennan;Zhang, Hao;Chen, Wei;Chen, Yong Q.
关键词:
The biosynthesis of very-long-chain polyunsaturated fatty acids involves an alternating process of fatty acid desaturation and elongation catalyzed by complex series of enzymes. ω3 desaturase plays an important role in converting ω6 fatty acids into ω3 fatty acids. Genes for this desaturase have been identified and characterized in a wide range of microorganisms, including cyanobacteria, yeasts, molds, and microalgae. Like all fatty acid desaturases, ω3 desaturase is structurally characterized by the presence of three highly conserved histidine-rich motifs; however, unlike some desaturases, it lacks a cytochrome b5-like domain. Understanding the structure, function, and evolution of ω3 desaturases, particularly their substrate specificities in the biosynthesis of very-long-chain polyunsaturated fatty acids, lays the foundation for potential production of various ω3 fatty acids in transgenic microorganisms.
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