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Merck
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主要文件

SRP2058

Sigma-Aldrich

FXR-ligand binding domain (222-472) human

recombinant, expressed in E. coli, ≥80% (SDS-PAGE)

别名:

FXR, Farnesol receptor HRR-1, NR1H4, retinoid receptor

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About This Item

UNSPSC代码:
12352200
NACRES:
NA.26
价格与库存信息目前不能提供

生物来源

human

重组

expressed in E. coli

方案

≥80% (SDS-PAGE)

表单

frozen liquid

分子量

~31.8 kDa

包装

pkg of 10 μg

浓度

650 μg/mL

颜色

colorless to clear

NCBI登记号

UniProt登记号

运输

dry ice

储存温度

−70°C

基因信息

human ... HRR-1(9971)

生化/生理作用

Farnesoid-X-activated receptor (FXR) was originally identified and cloned in rat as an orphan nuclear hormone receptor based on hybridization with a degenerate oligonucleotide designed from the highly conserved nuclear hormone receptor DNA binding domain. FXR functions as a heterodimer with RXR and binds to sequence elements in the promoters of target genes. The FXR/RXR heterodimer binds with highest affinity to inverted repeats separated by 1 bp (IR-1) and with low affinity to direct repeats separated by 4 and 5 bp (DR-4 and DR-5). As is the case for other nuclear hormone receptors, FXR regulates target gene activity in response to ligand. While initial studies suggested that farnesol and retinoid metabolites were likely ligands for FXR, current data support the notion that FXR is a bile acid sensor that plays an integral role in bile acid synthesis and transport. In the small intestine, FXR regulates bile acid uptake through the upregulation of the ileal bile acid binding protein gene via binding to an upstream response element. The FXR/RXR heterodimer can be activated by the bile salt chenodeoxycholic acid (CDCA) and FXR is required for the bile salt-dependent transcriptional control of the human ABCB11 gene (the bile salt export pump). In addition, FXR has been shown to inhibit the cholesterol 7-hydrolase gene (CYP7A1) transcription.

外形

Clear and colorless frozen liquid solution

制备说明

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

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W Seol et al.
Molecular endocrinology (Baltimore, Md.), 9(1), 72-85 (1995-01-01)
We have used a yeast genetic system to isolate cDNAs encoding proteins that specifically interact with the ligand-binding domain of human retinoid X receptor-alpha (RXR alpha). A number encoded portions of two known RXR heterodimer partners, the retinoic acid receptor
A M Zavacki et al.
Proceedings of the National Academy of Sciences of the United States of America, 94(15), 7909-7914 (1997-07-22)
Retinoids are crucial regulators of a wide variety of processes in both developing and adult animals. These effects are thought to be mediated by the retinoic acid (RA) receptors and the retinoid X receptors (RXRs). We have identified an additional
B M Forman et al.
Cell, 81(5), 687-693 (1995-06-02)
Nuclear hormone receptors comprise a superfamily of ligand-modulated transcription factors that mediate the transcriptional activities of steroids, retinoids, and thyroid hormones. A growing number of related proteins have been identified that possess the structural features of hormone receptors, but that

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