Cited by 163Plant biochemistry and biosynthesisPharmacogenetics and Drug MetabolismCholesterol and Lipid Metabolism

Studies on Squalene Epoxidase of Rat Liver

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Yamamoto, Shozo, Bloch, Konrad·1970·Journal of Biological Chemistry

Abstract

Rat liver microsomes previously heated to 50" for 5 mm accumulate 2,3-oxidosqualene on incubation with squalene.Squalene epoxidase activity can be assayed either with squalene and heated microsomes or with lO,ll-dihydrosqualene and intact microsomes.In common with other monooxygenases, the epoxidase requires TPNH and molecular oxygen.Both a soluble fraction of rat liver and microsomes are necessary for enzyme activity.Carbon monoxide or potassium cyanide fall to inhibit squalene epoxidation.

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Registry

Crossref · 10.1016/s0021-9258(19)77144-0

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18 of 18 references verified0 citation errors · 0 not checkable

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  • Cholesterol homeostasis is maintained by negative feedback regulation of genes and their encoded enzymes in the pathway, including the rate-limiting enzymes HMGCR and SQLE.

    “Cholesterol homeostasis is maintained by negative feedback regulation of genes and their encoded enzymes in the pathway, including the rate limiting enzymes HMG CoA reductase (HMGCR) and SQLE20–22.”

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Authors
Yamamoto, S., & Bloch, K.
Affiliations
Harvard University (US)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1970-04
Volume
245
Issue
7
Pages
1670-1674
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1606948338
Cited by
163
References
18
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 3 · 2012: 3
FWCI
2.98
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
squalene epoxidase, squalene epoxidation, 2,3-oxidosqualene, liver microsomes, mixed function oxidase, molecular oxygen, enzyme inhibition, carbon monoxide, potassium cyanide, rat liver
MeSH terms
Alkenes, Animals, Carbon Isotopes, Carbon Monoxide, Chelating Agents, Cholestanes, Chromatography, Thin Layer, Cyanides, Ethers, Cyclic, Fatty Acids, Female, Lipoproteins, Liver, Microsomes, Liver, Oxygenases, Solubility, Squalene, Temperature, Transferases, Tritium, Rats

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