SRP2137

FXR, ligand binding domain (222-472), GST tagged human

recombinant, expressed in E. coli, ≥70% (SDS-PAGE)

• Sinónimos: FXR, NR1H4, farnesol receptor HRR-1, retinoid receptor
• Código UNSPSC: 12352200
• NACRES: NA.26

Propiedades

• origen biológico: human
• recombinante: expressed in E. coli
• Análisis: ≥70% (SDS-PAGE)
• formulario: frozen liquid
• mol peso: ~56.3 kDa
• envase: pkg of 10 μg
• condiciones de almacenamiento: avoid repeated freeze/thaw cycles
• concentración: 400 μg/mL
• color: colorless to clear
• Nº de acceso NCBI: U68233
• Nº de acceso UniProt: Q96RI1
• Condiciones de envío: dry ice
• temp. de almacenamiento: −70°C
• Información sobre el gen: human ... HRR-1(9971)

Descripción

Acciones bioquímicas o fisiológicas

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.

Forma física

Clear and colorless frozen liquid solution

Nota de preparación

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

Información de seguridad

• Código de clase de almacenamiento: 10 - Combustible liquids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable