Abstract
Three new types of regulatory somatic cell mutants defective in expression of the enzyme 3-hydroxy-3-methylglutaryl coenzyme A reductase are described. They include a recessive mutant with abnormally high enzyme activity, apparently defective in degradation of the enzyme, and one, phenotypically a mevalonate auxotroph, that maintains permanently repressed levels of enzyme activity and are recessive, constitutive mutants. These mutants offer means for analyses of the mechanism of regulation of expression of 3-hydroxy-3-methylglutaryl coenzyme A reductase in cultured fibroblasts.
MeSH Terms
Animals
Cells, Cultured
Cholesterol/pharmacology
Cricetinae
Drug Resistance
Female
Gene Expression Regulation/drug effects
Hydroxycholesterols/pharmacology
Hydroxymethylglutaryl CoA Reductases/genetics
Mevalonic Acid/metabolism
Ovary
Chemicals
Hydroxycholesterols
Cholesterol
Hydroxymethylglutaryl CoA Reductases
Mevalonic Acid
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Sinensky M
Armagast S
Mueller G
Torget R
References (13)
13 references, click to expand
-
Genetics of somatic mammalian cells, VII. Induction and isolation of nutritional mutants in Chinese hamster cells.
Proc Natl Acad Sci U S A. 1968 Aug;60(4):1275-81
PMID: 5244736
-
Complementation analysis on virus-fused Chinese hamster cells with nutritional markers.
Science. 1969 Apr 18;164(3877):312-4
PMID: 5813351
-
Genetics of somatic mammalian cells. IX. Quantitation of mutagenesis by physical and chemical agents.
J Cell Physiol. 1969 Dec;74(3):245-58
PMID: 5390857
-
Inhibition of sterol synthesis in cultured mouse cells by cholesterol derivatives oxygenated in the side chain.
J Biol Chem. 1974 Oct 10;249(19):6057-61
PMID: 4472550
-
A solvent system for delipidation of plasma or serum without protein precipitation.
J Lipid Res. 1976 Mar;17(2):176-81
PMID: 818332
-
Regulation of 3-hydroxy-3-methylglutaryl coenzyme a reductase in minimal deviation hepatoma 7288C. Immunological measurements in hepatoma tissue culture cells.
J Biol Chem. 1977 Feb 10;252(3):950-4
PMID: 190221
-
The low-density lipoprotein pathway and its relation to atherosclerosis.
Annu Rev Biochem. 1977;46:897-930
PMID: 197883
-
Isolation of a mammalian cell mutant resistant to 25-hydroxy cholesterol.
Biochem Biophys Res Commun. 1977 Oct 10;78(3):863-7
PMID: 911332
-
Biological activity of some oxygenated sterols.
Science. 1978 Aug 11;201(4355):498-501
PMID: 663671
-
Defective regulation of 3-hydroxy-3-methylglutaryl coenzyme A reductase in a somatic cell mutant.
J Biol Chem. 1979 Jun 10;254(11):4482-6
PMID: 438201
-
A nutritional test for the low density lipoprotein receptor in Chinese hamster fibroblasts.
FEBS Lett. 1979 Oct 1;106(1):129-31
PMID: 227721
-
Characterization and regulation of reductase kinase, a protein kinase that modulates the enzymic activity of 3-hydroxy-3-methylglutaryl-coenzyme A reductase.
Proc Natl Acad Sci U S A. 1979 Sep;76(9):4375-9
PMID: 291971
-
CLONAL GROWTH OF MAMMALIAN CELLS IN A CHEMICALLY DEFINED, SYNTHETIC MEDIUM.
Proc Natl Acad Sci U S A. 1965 Feb;53:288-93
PMID: 14294058