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Recombinant Human NR5A2

Cat. No.: NR5A2-1052H
Description: LRH-1 or HB1F for human B1-binding factor belongs to the fushi tarazu factor-1 (FTZ-F1) subfamily of orphan nuclear receptors and is closely related to steroidogenic factor-1. LRH1 contains a DNA-binding domain with 2 zinc finger motifs, an FTZ-F1 box, and a ligand-binding domain. Cholesterol 7-alpha-hydroxylase is the first and ratelimiting enzyme in a pathway through which cholesterol is metabolized to bile acids. Elevated promoter-specific repressor protein (SHP) inactivates LRH1 by forming a heterodimeric complex that leads to promoter-specific repression of both CYP7A1 and SHP. These results revealed an elaborate autoregulatory cascade mediated by nuclear receptors for the maintenance of hepatic cholesterol catabolism. LRH1 specifically binds and activates viral hepatitis B enhancer II, an essential element for the liver-specific regulation of hepatitis B virus gene expression. CPF is a key regulator of human CYP7A gene expression in the liver. SHP1 represses expression of CYP7A1 by inhibiting the activity of LRH1 which regulates CYP7A1 expression positively. This bile acid-activated regulatory cascade provides a molecular basis for the coordinate suppression of CYP7A1 and other genes involved in bile acid biosynthesis.
Source: Baculovirus.
Application: Recombinant LRH-1 can be used for protein-protein interaction assays.
Usage: For in vitro use only.
Form: Liquid. Supplied in 20 mM Tris-HCl pH 8.0, 100 mM KCl, 0.2 mM EDTA, 1 mM DTT and 20% glycerol.
Purity: > 95% by SDS-PAGE.
Storage: Quality guaranteed for 12 months, Store at -80°C. Avoid freeze / thaw cycles.
nullValue_other: Maturity onset diabetes of the young; Gene Expression; Regulation of beta-cell development
Gene Name: NR5A2 nuclear receptor subfamily 5, group A, member 2 [ Homo sapiens ]
Synonyms: NR5A2; nuclear receptor subfamily 5, group A, member 2; B1F; CPF; FTF; B1F2; LRH1; hB1F; LRH-1; FTZ-F1; hB1F-2; FTZ-F1beta; nuclear receptor NR5A2; liver receptor homolog-1; liver receptor homolog 1; CYP7A promoter-binding factor; fetoprotein-alpha 1 (AFP) transcription factor; b1-binding factor, hepatocyte transcription factor which activates enhancer II of hepatitis B virus
Gene ID: 2494
mRNA Refseq: NM_003822
Protein Refseq: NP_003813
MIM: 604453
UniProt ID: O00482
Chromosome Location: 1q32.11
Function: RNA polymerase II transcription factor activity, enhancer binding; lipid binding; metal ion binding; protein binding; steroid hormone receptor activity; transcription activator activity; zinc ion binding

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