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AB81916

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

Key facts

Purity

>95% SDS-PAGE

Expression system

Escherichia coli

Tags

GST tag N-Terminus

Applications

SDS-PAGE, GSA, EMSA

applications

Biologically active

No

Accession

Q13133

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 7.9 Constituents: 20% Glycerol (glycerin, glycerine), 0.75% Potassium chloride, 0.316% Tris HCl, 0.0154% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.00584% EDTA

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "GSA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "EMSA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Sequence info

[{"sequence":"","proteinLength":"Full Length","predictedMolecularWeight":null,"actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":null,"accessionNumber":"Q13133","tags":[{"tag":"GST","terminus":"N-Terminus"}]}]

Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

LXR alpha also known as NR1H3 is a nuclear receptor protein involved in the regulation of lipid metabolism and inflammation. It has a molecular mass of approximately 55 kDa. Expressed mainly in the liver adipose tissue macrophages and intestines LXR alpha acts as a transcription factor controlling the expression of genes important for cholesterol homeostasis. It binds to DNA at specific LXR response elements usually forming heterodimers with the retinoid X receptor (RXR).
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.

LXR alpha is linked to atherosclerosis and Alzheimer’s disease. Its ability to regulate cholesterol transport and immune function demonstrates involvement in the pathogenesis of atherosclerosis by influencing macrophage-derived foam cell formation. Additionally improper cholesterol metabolism is associated with Alzheimer’s disease where LXR alpha's interaction with amyloid precursor protein (APP) may influence disease progression connecting cholesterol dysfunction with neurodegenerative processes.

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

Product protocols

Target data

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).
See full target information NR1H3

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