Merck
CN

C8503

Sigma-Aldrich

胆固醇

from sheep wool, ≥92.5% (GC), powder

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别名:
3β-羟基-5-胆甾烯, 5-胆甾烯-3β-醇
经验公式(希尔记法):
C27H46O
CAS号:
分子量:
386.65
Beilstein:
1915888
EC 号:
MDL编号:
eCl@ss:
39023139
PubChem化学物质编号:
NACRES:
NA.77

生物来源

sheep wool

质量水平

检测方案

≥92.5% (GC)

形式

powder

bp

360 °C (lit.)

mp

147-149 °C (lit.)

溶解性

water: soluble 0.00003 g/L at 20 °C

密度

1.067 g/mL at 25 °C (lit.)

运输

ambient

储存温度

room temp

SMILES string

CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C

InChI

1S/C27H46O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25,28H,6-8,10-17H2,1-5H3/t19-,21+,22+,23-,24+,25+,26+,27-/m1/s1

InChI key

HVYWMOMLDIMFJA-DPAQBDIFSA-N

Gene Information

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应用

用胆固醇制备免疫刺激复合物以增强细胞和体液反应。将其添加到动物饲料中,研究富含胆固醇饲料的影响。

生化/生理作用

胆固醇是一种脂质,约占细胞膜结构成分的 20-25%。它决定了膜的流动性和渗透性,使膜能通透水,但不能通透离子和质子。胆固醇也调节细胞膜上存在的转运蛋白和信号蛋白的功能。合成胆固醇的主要部位是小肠和肝脏。
所有生物膜的主要成分;总脑脂质中约25%为胆固醇。

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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Anja Helgeby et al.
Journal of immunology (Baltimore, Md. : 1950), 176(6), 3697-3706 (2006-03-07)
The cholera toxin A1 (CTA1)-DD/QuilA-containing, immune-stimulating complex (ISCOM) vector is a rationally designed mucosal adjuvant that greatly potentiates humoral and cellular immune responses. It was developed to incorporate the distinctive properties of either adjuvant alone in a combination that exerted
Effects of probiotic bacteria, isoflavones and simvastatin on lipid profile and atherosclerosis in cholesterol-fed rabbits: a randomized double-blind study
Cavallini DC et al
Lipids in Health and Disease, 8, doi: 10-doi: 10 (2009)
Effects of 2 or 5 consecutive exercise days on adipocyte area and lipid parameters in Wistar rats
Guerra RL et al
Lipids in Health and Disease, 6, doi: 10-doi: 10 (2007)
John M Dietschy et al.
Journal of lipid research, 45(8), 1375-1397 (2004-07-16)
Unesterified cholesterol is an essential structural component of the plasma membrane of every cell. During evolution, this membrane came to play an additional, highly specialized role in the central nervous system (CNS) as the major architectural component of compact myelin.
R R Grummer et al.
Journal of animal science, 66(12), 3160-3173 (1988-12-01)
Cholesterol utilized for steroid synthesis by ovarian tissue may be derived from de novo synthesis or cellular uptake of lipoprotein cholesterol. The majority of blood cholesterol is transported by either low (LDL) or high (HDL) density lipoproteins, depending on the

商品

胆固醇的生物合成通常发生在肝细胞的内质网中,并以乙酰辅酶A开始,乙酰辅酶A主要来源于线粒体中的氧化反应。乙酰辅酶A和乙酰乙酰辅酶A由HMG-辅酶A合成酶转化为3-羟基-3-甲基戊二酰辅酶A(HMG-辅酶A)。

Biosynthesis of cholesterol generally takes place in the endoplasmic reticulum of hepatic cells and begins with acetyl- CoA, which is mainly derived from an oxidation reaction in the mitochondria. Acetyl-CoA and acetoacetyl-CoA are converted to 3-hydroxy- 3-methylglutaryl-CoA (HMG-CoA) by HMG-CoA synthase.

实验方案

This procedure applies to products that have a specification for the enzymatic activity of cholesterol oxidase. This assay is NOT to be used to assay Cholesterol Oxidase from Schizophyllum commune (Discontinued Product Number C7274) and from Brevibacterium sp. (Discontinued Product Number C8153).

本操作流程使用过氧化物酶和邻联二茴香胺在500nm处进行胆固醇氧化酶活性的测定。胆固醇氧化酶是一种以氧为受体而作用于供体的CH-OH基团的酶。

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