Sodium/hydrogen exchanger 3 (UniProt: Q28362; also known as Na(+)/H(+) exchanger 3, NHE-3, Solute carrier family 9 member 3) is encoded by the SLC9A3 (also known as NHE3) gene in Didelphis virginiana (North American opossum). NHE-3 is a multi-pass membrane protein that is involved in pH regulation to eliminate acids generated by active metabolism or to counter adverse environmental conditions. NHE-3 is predominantly expressed in kidney and gut, where it is found on the apical membranes of polarized epithelial cells and plays a central role in transepithelial reabsorption of sodium ions and secretion of hydrogen ions. Renal NHE-3 is essential in maintaining blood pressure and steady-state plasma sodium levels when dietary sodium chloride intake is modified. In the intestine epithelial cells, it localizes to the ileal brush border. Dysfunction of NHE-3 in intestine is associated with a variety of diarrheal diseases. HNE-3 can be phosphorylated by SGK1 at Ser669 that increases its abundance at the cell membrane. (Ref.: D Souza, S et al. (1998). J. Biol. Chem. 273(4); 2035 2043; Fenton, RA et al (2017). Kidney Int. doi: 10.1016/j.kint.2017.02.001. [Epub ahead of print]).
Clone CH3 detects Sodium/hydrogen exchanger 3 in human, opossum, and rat kidney cells. It targets an epitope within 356 amino acids from the C-terminal half.
MBP-conjugated recombinant fragment corresponding to 356 amino acids from the C-terminal half of Opossum sodium/hydrogen exchanger 3.
Anti-NHE3, clone 3H3, Cat. No. MABN1813, is a highly specific mouse monoclonal antibody that targets Sodium/hydrogen exchanger 3 and has been tested for use in Immunohistochemistry, Immunoprecipitation, and Western Blotting.
Immunohistochemistry Analysis: A 1:50 dilution from a representative lot detected NHE3 in human kidney and human stomach tissue sections.
Western Blotting Analysis: A representative lot detected NHE3 in Western Blotting applications (Wang, D., et. al. (2006). Am J Physiol Renal Physiol. 290(2):F428-37; Queiroz-Leite, G.D., et. al. (2011). Biochem Biophys Res Commun. 409(3):470-6; Goyal, S., et. al. (2005). Am J Physiol Renal Physiol. 288(3):F530-8; Kocinsky, H.S., et. al. (2005). Am J Physiol Renal Physiol. 289(2):F249-58; Di Sole, F., et. al. (2008). J Cell Physiol. 216(1):221-33; Baum, M., et. al. (2012). Am J Physiol Renal Physiol. 303(11):F1495-502; Lessa, L.M., et. al. (2012). Am J Physiol Renal Physiol. 303(10):F1399-408).
Immunohistochemistry Analysis: A representative lot detected NHE3 in Immunohistochemistry applications (Pao, A.C., et. al. (2010). Am J Physiol Renal Physiol. 299(6):F1496-506).
Immunoprecipitation Analysis: A representative lot detected NHE3 in Immunoprecipitation applications (Girardi, A.C., et. al. (2004). Am J Physiol Renal Physiol. 287(5):C1238-45).
Evaluated by Western Blotting in COS-7 cells transfected with wild type NHE3 plasmid DNA.
Western Blotting Analysis: 0.25 µg/mL of this antibody detected NHE3 in lysates from COS-7 cells transfected with wild type NHE3 plasmid DNA.
~75 kDa observed; 94.77 kDa calculated. Uncharacterized bands may be observed in some lysate(s).
Protein G purified
Purified mouse monoclonal antibody IgG1 in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Storage and Stability
Stable for 1 year at 2-8°C from date of receipt.
Concentration: Please refer to lot specific datasheet.
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