|Other Names||Na(+)/H(+) exchange regulatory cofactor NHE-RF4, NHERF-4, Intestinal and kidney-enriched PDZ protein, Natrium-phosphate cotransporter IIa C-terminal-associated protein 2, Na/Pi cotransporter C-terminal-associated protein 2, NaPi-Cap2, PDZ domain-containing protein 2, PDZ domain-containing protein 3, Sodium-hydrogen exchanger regulatory factor 4, PDZD3, IKEPP, NHERF4, PDZK2|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Synonyms||IKEPP, NHERF4, PDZK2|
|Function||Acts as a regulatory protein that associates with GUCY2C and negatively modulates its heat-stable enterotoxin-mediated activation. Stimulates SLC9A3 activity in the presence of elevated calcium ions.|
|Cellular Location||Cell membrane; Peripheral membrane protein. Cytoplasm. Note=Preferentially accumulates at the apical surface and ileal brush border of intestinal epithelial cells|
|Tissue Location||Expressed in kidney and the gastrointestinal tract. Not detected in brain, heart, skeletal muscle or cells of hematopoietic origin.|
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Provided below are standard protocols that you may find useful for product applications.
Guanylyl cyclase C (GCC, or GUCY2C; MIM 601330) producescGMP following the binding of either endogenous ligands orheat-stable enterotoxins secreted by E. coli and other entericbacteria. Activation of GCC initiates a signaling cascade thatleads to phosphorylation of the cystic fibrosis transmembraneconductance regulator (CFTR; MIM 602421), followed by a net effluxof ions and water into the intestinal lumen. IKEPP is a regulatoryprotein that associates with GCC and regulates the amount of cGMPproduced following receptor stimulation (Scott et al., 2002 [PubMed11950846]).
Zachos, N.C., et al. Cell. Physiol. Biochem. 22 (5-6), 693-704 (2008) :Kato, Y., et al. Mol. Pharmacol. 67(3):734-743(2005)Hegedus, T., et al. Biochem. Biophys. Res. Commun. 302(3):454-461(2003)Scott, R.O., et al. J. Biol. Chem. 277(25):22934-22941(2002)
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