Reduced cholesterol levels impair Smoothened activation in Smith–Lemli–Opitz syndrome
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چکیده
منابع مشابه
Reduced cholesterol levels impair Smoothened activation in Smith-Lemli-Opitz syndrome.
Smith-Lemli-Opitz syndrome (SLOS) is a common autosomal-recessive disorder that results from mutations in the gene encoding the cholesterol biosynthetic enzyme 7-dehydrocholesterol reductase (DHCR7). Impaired DHCR7 function is associated with a spectrum of congenital malformations, intellectual impairment, epileptiform activity and autism spectrum disorder. Biochemically, there is a deficit in ...
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Herein, we report the first synthesis of a demethylated form of cholesterol (18,19-di-nor-cholesterol), in which the C18 and C19 methyl groups of the β-face were eliminated. Recent molecular simulations modeling 18,19-di-norcholesterol have suggested that cholesterol’s opposing rough β-face and smooth α-face play necessary roles in cholesterol’s membrane condensing abilities and, additionally, ...
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In vertebrates, sterols are necessary for Hedgehog signaling, a pathway critical in embryogenesis and cancer. Sterols activate the membrane protein Smoothened by binding its extracellular, cysteine-rich domain (CRD). Major unanswered questions concern the nature of the endogenous, activating sterol and the mechanism by which it regulates Smoothened. We report crystal structures of CRD complexed...
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ژورنال
عنوان ژورنال: Human Molecular Genetics
سال: 2015
ISSN: 0964-6906,1460-2083
DOI: 10.1093/hmg/ddv507