WB, IP
H M
Endogenous
130, 260
Rabbit IgG
#P41180
846
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:50 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro368 of human CaSR protein.
Background
CaSR, the extracellular Calcium-Sensing Receptor, is a widely expressed G-protein coupled receptor (GPCR) involved in calcium homeostasis. CaSR operates as a sensor in parathyroid and kidney, and alterations in its activity have been shown to cause thyroid disease in humans (1). Activation of the receptor in response to extracellular calcium or other ligands causes activation of phospholipase C (PLC), release of IP3 and release of calcium from intracellular stores (2). Proinflammatory cytokines IL-1β and TNF-α increase CaSR gene expression in human thyroid and kidney cells through activation of the NF-κB pathway, and this pathway may be involved in hypocalcemia often seen in critically ill patients (3). Elevated calcium concentration and CaSR expression have been linked to proliferation and metastasis of skeletal metastatic prostate cancer cell lines (4). In intestinal epithelial cells, CaSR is involved in regulation of cyclic nucleotide metabolism and the fluid secretion that results in life-threatening fluid loss in response to intestinal pathogens (5). The interaction of CaSR with the actin-binding protein filamin may provide scaffolding for the organization of signaling pathways converging on the cytoskeleton, including CaSR-mediated MAPK pathway activation (6).
- Hofer, A.M. and Brown, E.M. (2003) Nat Rev Mol Cell Biol 4, 530-8.
- Cheng, S.X. et al. (2002) Am J Physiol Gastrointest Liver Physiol 283, G240-50.
- Canaff, L. and Hendy, G.N. (2005) J Biol Chem 280, 14177-88.
- Liao, J. et al. (2006) Cancer Res 66, 9065-73.
- Geibel, J. et al. (2006) Proc Natl Acad Sci U S A 103, 9390-7.
- Awata, H. et al. (2001) J Biol Chem 276, 34871-9.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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