Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast

Whereas wild-type strains of Saccharomyces cerevisiae can synthesize up to 7% dry weight of ergosterol, a polyene-resistant mutant has been obtained which produces no ergosterol. Instead, a C-28 methyl sterol is produced, and it has been identified as Δ8(9),22-ergostadiene-3β-ol. This sterol is conv...

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Main Authors: L.W. Parks, F.T. Bond, E.D. Thompson, P.R. Starr
Format: Article
Language:English
Published: Elsevier 1972-05-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520393925
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author L.W. Parks
F.T. Bond
E.D. Thompson
P.R. Starr
author_facet L.W. Parks
F.T. Bond
E.D. Thompson
P.R. Starr
author_sort L.W. Parks
collection DOAJ
description Whereas wild-type strains of Saccharomyces cerevisiae can synthesize up to 7% dry weight of ergosterol, a polyene-resistant mutant has been obtained which produces no ergosterol. Instead, a C-28 methyl sterol is produced, and it has been identified as Δ8(9),22-ergostadiene-3β-ol. This sterol is converted to ergosterol by wild-type yeasts and is observed transiently in cells during aerobic adaption of anaerobically grown wild-type yeasts. The new sterol is proposed as an intermediate in ergosterol biosynthesis.
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spelling doaj.art-bb9f086348a947f2b77cfa99bc1a14cb2022-12-21T22:33:19ZengElsevierJournal of Lipid Research0022-22751972-05-01133311316Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeastL.W. Parks0F.T. Bond1E.D. Thompson2P.R. Starr3Department of Microbiology, Oregon State University, Corvallis, Oregon 97331; and; Department of Chemistry, Revelle College, University of California at San Diego, LaJolla, California 92037Department of Microbiology, Oregon State University, Corvallis, Oregon 97331; and; Department of Chemistry, Revelle College, University of California at San Diego, LaJolla, California 92037Department of Microbiology, Oregon State University, Corvallis, Oregon 97331; and; Department of Chemistry, Revelle College, University of California at San Diego, LaJolla, California 92037Department of Microbiology, Oregon State University, Corvallis, Oregon 97331; and; Department of Chemistry, Revelle College, University of California at San Diego, LaJolla, California 92037Whereas wild-type strains of Saccharomyces cerevisiae can synthesize up to 7% dry weight of ergosterol, a polyene-resistant mutant has been obtained which produces no ergosterol. Instead, a C-28 methyl sterol is produced, and it has been identified as Δ8(9),22-ergostadiene-3β-ol. This sterol is converted to ergosterol by wild-type yeasts and is observed transiently in cells during aerobic adaption of anaerobically grown wild-type yeasts. The new sterol is proposed as an intermediate in ergosterol biosynthesis.http://www.sciencedirect.com/science/article/pii/S0022227520393925ergosterolsterol mutantyeast sterolpolyene resistance
spellingShingle L.W. Parks
F.T. Bond
E.D. Thompson
P.R. Starr
Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
Journal of Lipid Research
ergosterol
sterol mutant
yeast sterol
polyene resistance
title Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
title_full Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
title_fullStr Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
title_full_unstemmed Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
title_short Δ8(9),22-Ergostadiene-3β-ol, an ergosterol precursor accumulated in wild-type and mutants of yeast
title_sort δ8 9 22 ergostadiene 3β ol an ergosterol precursor accumulated in wild type and mutants of yeast
topic ergosterol
sterol mutant
yeast sterol
polyene resistance
url http://www.sciencedirect.com/science/article/pii/S0022227520393925
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