ArticleApplied and environmental microbiology2007
Identification of a sterol Delta7 reductase gene involved in desmosterol biosynthesis in Mortierella alpina 1S-4.
Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Article
- Characterization of the Sterol 24-C-Methyltransferase Genes Reveals a Network of Alternative Sterol Biosynthetic Pathways inMicrobiology spectrum · 2023Article
- Metabolic engineering strategies for de novo biosynthesis of sterols and steroids in yeast.Bioresources and bioprocessing · 2021Review
- Biosynthesis of cholesterol and other sterols.Chemical reviews · 2011Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
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Abstract
Molecular cloning of the gene encoding sterol Delta7 reductase from the filamentous fungus Mortierella alpina 1S-4, which accumulates cholesta-5,24-dienol (desmosterol) as the main sterol, revealed that the open reading frame of this gene, designated MoDelta7SR, consists of 1,404 bp and codes for 468 amino acids with a molecular weight of 53,965. The predicted amino acid sequence of MoDelta7SR showed highest homology of 51% with that of sterol Delta7 reductase (EC 1.3.1.21) from Xenopus laevis (African clawed frog). Heterologous expression of the MoDelta7SR gene in yeast Saccharomyces cerevisiae revealed that MoDelta7SR converts ergosta-5,7-dienol to ergosta-5-enol (campesterol) by the activity of Delta7 reductase. In addition, with gene silencing of MoDelta7SR gene by RNA interference, the transformant accumulated cholesta-5,7,24-trienol up to 10% of the total sterols with a decrease in desmosterol. Cholesta-5,7,24-trienol is not detected in the control strain. This indicates that MoDelta7SR is involved in desmosterol biosynthesis in M. alpina 1S-4. This study is the first report on characterization of sterol Delta7 reductase from a microorganism.
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