Recombinant Human LXR alpha protein
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Recombinant Human LXR alpha protein is a Human Full Length protein, expressed in Escherichia coli, with >95%, suitable for SDS-PAGE, GSA, EMSA.
View Alternative Names
LXRA, NR1H3, Oxysterols receptor LXR-alpha, Liver X receptor alpha, Nuclear receptor subfamily 1 group H member 3
Reactivity data
Sequence info
Properties and storage information
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Aliquoting information
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
LXR alpha plays a critical role in lipid metabolism and cholesterol efflux. It is part of a larger LXR and CO complex which contributes to the regulation of genes that manage cholesterol absorption transport and excretion. For instance LXR activation increases the expression of ATP-binding cassette transporters such as ABCA1 and ABCG1 which are essential for transporting cholesterol out of cells and facilitating reverse cholesterol transport.
Pathways
The function of LXR alpha is significant in both the cholesterol catabolism pathway and the inflammatory response pathway. Within these pathways it upregulates genes involved in cholesterol catabolism providing a mechanism to prevent excess accumulation in cells and tissues. LXR alpha interacts closely with other nuclear receptors and proteins like PPARs (peroxisome proliferator-activated receptors) highlighting its role in lipid signaling networks.
Specifications
Form
Liquid
General info
Function
Nuclear receptor that exhibits a ligand-dependent transcriptional activation activity (PubMed : 19481530, PubMed : 25661920, PubMed : 37478846). Interaction with retinoic acid receptor (RXR) shifts RXR from its role as a silent DNA-binding partner to an active ligand-binding subunit in mediating retinoid responses through target genes defined by LXRES (PubMed : 37478846). LXRES are DR4-type response elements characterized by direct repeats of two similar hexanuclotide half-sites spaced by four nucleotides (By similarity). Plays an important role in the regulation of cholesterol homeostasis, regulating cholesterol uptake through MYLIP-dependent ubiquitination of LDLR, VLDLR and LRP8 (PubMed : 19481530). Interplays functionally with RORA for the regulation of genes involved in liver metabolism (By similarity). Induces LPCAT3-dependent phospholipid remodeling in endoplasmic reticulum (ER) membranes of hepatocytes, driving SREBF1 processing and lipogenesis (By similarity). Via LPCAT3, triggers the incorporation of arachidonate into phosphatidylcholines of ER membranes, increasing membrane dynamics and enabling triacylglycerols transfer to nascent very low-density lipoprotein (VLDL) particles. Via LPCAT3 also counteracts lipid-induced ER stress response and inflammation, likely by modulating SRC kinase membrane compartmentalization and limiting the synthesis of lipid inflammatory mediators (By similarity).
Sequence similarities
Belongs to the nuclear hormone receptor family. NR1 subfamily.
Post-translational modifications
Ubiquitinated by UBR5, leading to its degradation: UBR5 specifically recognizes and binds ligand-bound NR1H3 when it is not associated with coactivators (NCOAs) (PubMed:37478846). In presence of NCOAs, the UBR5-degron is not accessible, preventing its ubiquitination and degradation (PubMed:37478846).
Subcellular localisation
Nucleus
Target data
Product promise
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