Squalene epoxidase and oxidosqualene lanosterol-cyclase activities in cholesterogenic and non-cholesterogenic tissues
Abstract
Squalene epoxidase and oxidosqualene lanosterol-cyclase activities have been studied in normal mammalian cholesterogenic and non-cholesterogenic tissues. This paper describes the kinetic conditions of measurement of these two enzymatic acitivities and their results. Oxidosqualene lanosterol-cyclase is a widespread enzyme, present in all cholesterogenic and non-cholesterogenic tissues. However, the level of squalene epoxidase is very low in non-cholesterogenic tissues. However, the level of squalene epoxidase is very low in non-cholesterogenic tissues. The effects of subcellular fractionizing and of the physico-chemical state of squalene incubated in vitro on squalene epoxidase activity are discussed.
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SQLE is expressed in many tissues.
“SQLE is expressed in many tissues24 and is conserved throughout evolution; the mouse and human proteins are 84% identical at the amino acid level.”
From A suppressor screen in Mecp2 mutant mice implicates cholesterol metabolism in Rett syndrome (2013) · cites this paper as [24]
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Studies on Squalene Epoxidase of Rat Liver
Yamamoto, S., & Bloch, K. (1970) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)77144-0 · Cited by 163 · see citing works
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A suppressor screen in Mecp2 mutant mice implicates cholesterol metabolism in Rett syndrome
Buchovecky, C. M., Turley, S. D., Brown, H. M., Kyle, S. M., McDonald, J. G., Liu, B., Pieper, A. A., Huang, W., Katz, D. M., Russell, D. W., et al. (2013) · Nature Genetics · doi:10.1038/ng.2714 · Cited by 234 · see citing works
- Authors
- Astruc, M., Tabacik, C., Descomps, B., & de Paulet, A. C.
- Affiliations
- Inserm (FR)
- Venue
- Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism
- Publisher
- Elsevier BV
- Published
- 1977-04
- Volume
- 487
- Issue
- 1
- Pages
- 204-211
- ISSN
- 0005-2760 (ISSN-L)
- OpenAlex
- W2094539543
- Cited by
- 27
- References
- 1
- Citations by year
- 2024: 1 · 2023: 1 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 1 · 2013: 1 · 2012: 2
- FWCI
- 0.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Steroid Chemistry and Biochemistry
- Keywords
- squalene epoxidase, cholesterol biosynthesis, enzyme kinetics, subcellular fractionation
- MeSH terms
- Animals, Brain, Cholesterol, Cytosol, Ethers, Cyclic, Female, Humans, Isomerases, Kidney, Kinetics, Lanosterol, Liver, Lung, Microsomes, Muscles, Organ Specificity, Oxygenases, Placenta, Pregnancy, Squalene, Subcellular Fractions, Rats
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