Crossref journal-article
American Society for Microbiology
Journal of Bacteriology (235)
Abstract

ABSTRACT Aerobically growing wild-type strains of Saccharomyces cerevisiae are unable to take exogenously supplied sterols from media. This aerobic sterol exclusion is vitiated under anaerobic conditions, in heme-deficient strains, and under some conditions of impaired sterol synthesis. Mutants which can take up sterols aerobically in heme-competent cells have been selected. One of these mutations, designated upc2-1 , gives a pleiotropic phenotype in characteristics as diverse as aerobic accumulation of sterols, total lipid storage, sensitivity to metabolic inhibitors, response to altered sterol structures, and cation requirements. During experiments designed to ascertain the effects of various cations on yeast with sterol alterations, it was observed that upc2-1 was hypersensitive to Ca 2+ . Using resistance to Ca 2+ as a screening vehicle, we cloned UPC2 and showed that it is YDR213W, an open reading frame on chromosome IV. This belongs to a fungal regulatory family containing the Zn(II)2Cys6 binuclear cluster DNA binding domain. The single guanine-to-adenine transition in upc2-1 gives a predicted amino acid change from glycine to aspartic acid. The regulatory defect explains the semidominance and pleiotropic effects of upc2-1.

Bibliography

Crowley, J. H., Leak, F. W., Shianna, K. V., Tove, S., & Parks, L. W. (1998). A Mutation in a Purported Regulatory Gene Affects Control of Sterol Uptake in Saccharomyces cerevisiae. Journal of Bacteriology, 180(16), 4177–4183.

Authors 5
  1. James H. Crowley (first)
  2. Frank W. Leak (additional)
  3. Kevin V. Shianna (additional)
  4. Shirley Tove (additional)
  5. Leo W. Parks (additional)
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Dates
Type When
Created 5 years, 7 months ago (Dec. 31, 2019, 11:25 a.m.)
Deposited 4 years, 1 month ago (July 29, 2021, 2:22 p.m.)
Indexed 1 year ago (Aug. 10, 2024, 1:55 a.m.)
Issued 27 years ago (Aug. 15, 1998)
Published 27 years ago (Aug. 15, 1998)
Published Print 27 years ago (Aug. 15, 1998)
Funders 0

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@article{Crowley_1998, title={A Mutation in a Purported Regulatory Gene Affects Control of Sterol Uptake in Saccharomyces cerevisiae}, volume={180}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.180.16.4177-4183.1998}, DOI={10.1128/jb.180.16.4177-4183.1998}, number={16}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Crowley, James H. and Leak, Frank W. and Shianna, Kevin V. and Tove, Shirley and Parks, Leo W.}, year={1998}, month=aug, pages={4177–4183} }