The human retinoid X receptors (RXRs) are encoded by three distinct genes (RXR alpha, RXR beta, and RXR gamma) and bind selectively and with high affinity to the vitamin A derivative, 9-cis-retinoic acid.
RXRs are type-II nuclear hormone receptors that are largely localized to the nuclear compartment independent of ligand binding.
Nuclear RXRs form heterodimers with nuclear hormone receptor subfamily 1 proteins, including thyroid hormone receptor, retinoic acid receptors, vitamin D receptor, peroxisome proliferator-activated receptors, liver X receptors, and farnesoid X receptor.
Since RXRs heterodimerize with multiple nuclear hormone receptors, they play a central role in transcriptional control of numerous hormonal signaling pathways by binding to cis-acting response elements in the promoter/enhancer region of target genes.
Retinoid X receptor alpha (RXR alpha) is the founding RXR family member and is predominantly expressed in liver, kidney, epidermis, intestine and a variety of tissues.
Knockout of the murine rxralpha gene results in embryonic lethality tentatively due to myocardial hypoplasia, which demonstrates the importance of RXR alpha to retinoid signaling in vivo.
Biochemical evidence suggests that RXR alpha transcriptional activity is post-translationally regulated through the Ras-Raf-MAPK signaling cascade.
MAPK-dependent phosphorylation of RXR alpha directly abrogates the ability of RXR alpha to associate with nuclear receptor coactivators.
Applications:Suitable for use in Western Blot.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:100ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.3, 0.05% sodium azide.
Specificity:Recognizes endogenous levels of human RXRA protein.
Isotype:IgG
Calc Applications Abbrev:WB
Calc Crossreactivity:Hu
Immunogen:Synthetic peptide corresponding to human RXRA.