25(R)-27-hydroxy Cholesterol
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
25(R)-27-hydroxy Cholesterol ((25R)-26-hydroxy cholesterol) is the naturally occurring isomer of the endogenous the endogenous 27-hydroxycholesterol. And approximately 80% is the naturally occurring (25R) isomer [1][2]. 27-hydroxycholesterol is an endogenous ligand of liver X receptor with EC50 values of 85 and 71 nM for LXRα and LXRβ, respectively [2][3].
The liver x receptors (LXRα and LXRβ) are nuclear hormone receptors that are important regulators of cholesterol and fatty acid metabolism [2].
27-hydroxycholesterol is synthesized by a mitochondrial P-450 enzyme that appears to be widely distributed in tissues [1]. 27-hydroxycholestero1 can inhibit both cholesterol synthesis and low density lipoprotein (LDL) receptor activity [1]. In cholesterol-loaded human macrophage cells, 27-hydroxycholestero1 is an endogenous ligand for LXRs with Kd values of 85 and 71 nM for LXRα and LXRβ, respectively [3]. In human fibroblasts, low density lipoprotein cholesterol is converted to 27-hydroxycholesterol, which was sufficient to reduce the activity of HMG-CoA reductase [4].
References:
[1]. Javitt NB. 26-Hydroxycholesterol: synthesis, metabolism, and biologic activities. J Lipid Res. 1990 Sep;31(9):1527-33.
[2]. Fu X, Menke JG, Chen Y, et al. 27-hydroxycholesterol is an endogenous ligand for liver X receptor in cholesterol-loaded cells. J Biol Chem. 2001 Oct 19;276(42):38378-87.
[3]. Zhang Y, Mangelsdorf DJ. LuXuRies of lipid homeostasis: the unity of nuclear hormone receptors, transcription regulation, and cholesterol sensing. Mol Interv. 2002 Apr;2(2):78-87.
[4]. Axelson M, Larsson O. Low density lipoprotein (LDL) cholesterol is converted to 27-hydroxycholesterol in human fibroblasts. Evidence that 27-hydroxycholesterol can be an important intracellular mediator between LDL and the suppression of cholesterol production. J Biol Chem. 1995 Jun 23;270(25):15102-10.
Physical Appearance | A crystalline solid |
Storage | Store at -20°C |
M.Wt | 402.7 |
Cas No. | 20380-11-4 |
Formula | C27H46O2 |
Synonyms | (25R)-26-hydroxy cholesterol |
Solubility | ≤20mg/ml in ethanol;0.1mg/ml in DMSO;2mg/ml in dimethyl formamide |
Chemical Name | (25R)-cholest-5-ene-3β,26-diol |
SDF | Download SDF |
Canonical SMILES | O[C@@H]1CC2=CC[C@]3([H])[C@@](CC[C@]4([C@@]3([H])CC[C@]4([H])[C@@H](CCC[C@@H](C)CO)C)C)([H])[C@](C)2CC1 |
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