Isolation and characterization of delta(6)-desaturase, an ELO-like enzyme and delta(5)-desaturase from the liverwort Marchantia polymorpha and production of arachidonic and eicosapentaenoic acids in the methylotrophic yeast Pichia pastoris. Kajikawa, M.; Yamato, K., T.; Kohzu, Y.; Nojiri, M.; Sakuradani, E.; Shimizu, S.; Sakai, Y.; Fukuzawa, H.; and Ohyama, K. Plant Molecular Biology, 54(3):335-352, 2004.
Isolation and characterization of delta(6)-desaturase, an ELO-like enzyme and delta(5)-desaturase from the liverwort Marchantia polymorpha and production of arachidonic and eicosapentaenoic acids in the methylotrophic yeast Pichia pastoris. [link]Website  abstract   bibtex   
The liverwort Marchantia polymorpha contains high proportions of arachidonic and eicosapentaenoic acids. In general, these C20 polyunsaturated fatty acids (PUFA) are synthesized from linoleic and alpha -linolenic acids, respectively, by a series of reactions catalyzed by Delta(6)-desaturase, an ELO-like enzyme involved in Delta(6) elongation and Delta(5)-desaturase. Here we report the isolation and characterization of the cDNAs, MpDES6, MpELO1 and MpDES5, coding for the respective enzymes from M. polymorpha. Co-expression of the MpDES6, MpELO1 and MpDES5 cDNAs resulted in the accumulation of arachidonic and eicosapentaenoic acids in the methylotrophic yeast Pichia pastoris. Interestingly, Delta(6) desaturation by the expression of the MpDES6 cDNA appears to occur both in glycerolipids and the acyl-CoA pool, although other lower-plant Delta(6)-desaturases are known to have a strong preference for glycerolipids.
@article{
 title = {Isolation and characterization of delta(6)-desaturase, an ELO-like enzyme and delta(5)-desaturase from the liverwort Marchantia polymorpha and production of arachidonic and eicosapentaenoic acids in the methylotrophic yeast Pichia pastoris.},
 type = {article},
 year = {2004},
 pages = {335-352},
 volume = {54},
 websites = {http://www.ncbi.nlm.nih.gov/pubmed/15284491},
 institution = {Laboratory of Plant Molecular Biology, Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.},
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 last_modified = {2011-05-20T17:26:15.000Z},
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 abstract = {The liverwort Marchantia polymorpha contains high proportions of arachidonic and eicosapentaenoic acids. In general, these C20 polyunsaturated fatty acids (PUFA) are synthesized from linoleic and alpha -linolenic acids, respectively, by a series of reactions catalyzed by Delta(6)-desaturase, an ELO-like enzyme involved in Delta(6) elongation and Delta(5)-desaturase. Here we report the isolation and characterization of the cDNAs, MpDES6, MpELO1 and MpDES5, coding for the respective enzymes from M. polymorpha. Co-expression of the MpDES6, MpELO1 and MpDES5 cDNAs resulted in the accumulation of arachidonic and eicosapentaenoic acids in the methylotrophic yeast Pichia pastoris. Interestingly, Delta(6) desaturation by the expression of the MpDES6 cDNA appears to occur both in glycerolipids and the acyl-CoA pool, although other lower-plant Delta(6)-desaturases are known to have a strong preference for glycerolipids.},
 bibtype = {article},
 author = {Kajikawa, Masataka and Yamato, Katsuyuki T and Kohzu, Yoshito and Nojiri, Masutoshi and Sakuradani, Eiji and Shimizu, Sakayu and Sakai, Yasuyoshi and Fukuzawa, Hideya and Ohyama, Kanji},
 journal = {Plant Molecular Biology},
 number = {3}
}
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