79-63-0CC(C)=CCC[C@@H](C)[C@H]1CC[C@@]2(C)C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)C(C)(C)[C@@H]1CC3CAHGCLMLTWQZNJ-BQNIITSRSA-NLanosterol is a tetracyclic triterpenoid that is lanosta-8,24-diene substituted by a beta-hydroxy group at the 3beta position. It is the compound from which all steroids are derived. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, a bacterial metabolite and a human metabolite. It is a 14alpha-methyl steroid, a tetracyclic triterpenoid and a 3beta-sterol. It derives from a hydride of a lanostane.
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Chemical: Lanosta-8,24-dien-3-ol, (3.beta.)-
Lanosterol: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
解説ラノステロール 羊毛脂,バター脂,酵母などから抽出される四環性トリテルペノイド.融点139 ℃.+60°(クロロホルム).エーテル,クロロホルムに可溶,水に不溶.スクアレン-2,3-エポキシドの環化反応で生合成される.コレステロールやエルゴステロールなどは,このもののC-4およびC-14位メチル基が脱離して生成したものである.ほとんどすべての真核細胞にあまねく分布し,種々の機能や特異な生物活性を担っており,ひじょうに多くのものが分離されている。ステロイド核は,イソプレンが6個つながったトリテルペンであるスクアレンが閉環してできるラノステロールを経てつくられる。この生合成反応はミクロソームにおいて行われる。
説明Lanosterol is a naturally-occurring sterol and biosynthetic precursor of several animal, fungal, and protozoan steroids, including cholesterol and ergosterol. Defects in the processing of lanosterol contribute to a wide variety of disorders, including the formation of cataracts. Similarly, certain fungicides act by blocking lanosterol processing by fungi.
使用Lanosterol has been used:as a standard in HPLC for the quantification in testis samplesin S-adenosyl-L-methionine:Δ24-sterol-C-methyltransferase (SMT) assayto treat wild-type cells growing in rich medium to know its effects on Sre1 protein
一般的な説明Lanosterol, an amphipathic molecule, that is produced bylanosterolsynthase (LSS). It is enriched in the lens.
純化方法If very impure, then it should be acetylated, converted to the dibromide acetate [crystallised from EtOAc with slow cooling, m 168-170o, [] D +214o (CHCl3)], de-brominated with Zn dust to give the acetate (below) which is recrystallised from 3-4 parts of Me2CO/MeOH (4:1) and hydrolysed as for stigmasterol (below). Recrystallise it from anhydrous MeOH. Dry it in vacuo over P2O5 for 3hours at 90o. The purity is checked by proton magnetic resonance. The acetate crystallises from MeOH with m 131-133o and [ ] 25D +62o (c 1,CHCl3). [Block & Urech Biochemical Preparations 6 32 1958. van Tamelen et al. J Am Chem Soc 104 6479, 6480 1982, Beilstein 6 III 2880, 6 IV 4188.]
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79-63-0DTXSID1040744CHEMBL225111CHEBI:16521定義本品は、ラノリン(*)から得られるステロールであり、次の化学式で表される。参照表示名称:ラノリン
定義ChEBI: A tetracyclic triterpenoid that is lanosta-8,24-diene substituted by a beta-hydroxy group at the 3beta position. It is the compound from which all steroids are derived.