Difference between revisions of "YLR056W"
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| − | + | Erg3 is activated by Dap1 (damage resistance protein 1), a heme-binding protein which shares some homology with cytochrome b5. Episterol accumulates in strains mutated for DAP1. Dap1p also activates Erg11, but dap1 strains engineered to over-express ERG11 have remarkable levels of episterol and other sterol intermediates. The mechanism through which Dap1p activates Erg3p is not known. | |
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==References== | ==References== | ||
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Revision as of 13:56, 23 October 2007
Share your knowledge...Edit this entry! <protect>
| Systematic name | YLR056W |
| Gene name | ERG3 |
| Aliases | PSO6, SYR1 |
| Feature type | ORF, Verified |
| Coordinates | Chr XII:253862..254959 |
| Primary SGDID | S000004046 |
Description of YLR056W: C-5 sterol desaturase, catalyzes the introduction of a C-5(6) double bond into episterol, a precursor in ergosterol biosynthesis; mutants are viable, but cannot grow on non-fermentable carbon sources[1][2][3][4]
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Contents
[hide]Community Commentary
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Erg3 is activated by Dap1 (damage resistance protein 1), a heme-binding protein which shares some homology with cytochrome b5. Episterol accumulates in strains mutated for DAP1. Dap1p also activates Erg11, but dap1 strains engineered to over-express ERG11 have remarkable levels of episterol and other sterol intermediates. The mechanism through which Dap1p activates Erg3p is not known.
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References
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- Jump up ↑ Paltauf F, et al. (1992) Regulation and compartmentalization of lipid synthesis in yeast. Pp. 415-500 in The Molecular and Cellular Biology of the Yeast Saccharomyces: Gene Expression, edited by Jones EW, Pringle JR and Broach JR. Cold Spring Harbor, NY: Cold Spring Harbor Laboratory Press SGD PMID
- Jump up ↑ Arthington BA, et al. (1991) Cloning, disruption and sequence of the gene encoding yeast C-5 sterol desaturase. Gene 102(1):39-44 SGD PMID 1864507
- Jump up ↑ Lees ND, et al. (1995) Cloning of the late genes in the ergosterol biosynthetic pathway of Saccharomyces cerevisiae--a review. Lipids 30(3):221-6 SGD PMID 7791529
- Jump up ↑ Parks LW, et al. (1995) Biochemical and physiological effects of sterol alterations in yeast--a review. Lipids 30(3):227-30 SGD PMID 7791530
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