Recombinant Rat Reg3G Protein, CF Summary
Glu27-Ala174, with an N-terminal Met and a C-terminal 6-His tag
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
|Formulation||Lyophilized from a 0.2 μm filtered solution in PBS.|
|Reconstitution||Reconstitute at 500 μg/mL in sterile PBS.|
|Shipping||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Stability & Storage:||Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Regenerating islet-derived protein 3-gamma (Reg3G), also known as pancreatitis-associated protein 3 (PAP3), is one of several secreted Reg proteins that contain a single C-type lectin domain and contribute to anti-microbial immunity in the gut (1, 2). Reg3G is secreted as a 148 amino acid (aa) proprotein, and 11 residues are cleaved from the N-terminus to generate the 15 kDa mature protein (3). This short propeptide serves as an inhibitor that limits the activity of the proprotein (3, 4). Mature rat Reg3G shares 65% and 85% aa sequence identity with human and mouse Reg3G, respectively. Reg3G is expressed by Paneth cells of the small intestine and is released into the gut lumen (5). It is up-regulated in gastrointestinal epithelium by bacterial inflammation or by defects in the mucous lining (5-8). Its expression and secretion is also induced in the lung in response to MRSA (drug resistant S. aureus) and in damaged skeletal muscle and peripheral neurons (4, 9). Reg3G binds to bacterial peptidoglycans, exerts bacteriostatic and bactericidal activities, and protects the mucosa against bacterial invasion (4, 5, 10, 11). It also inhibits inflammation by limiting the number of Th1 cells in the lamina propria (11). R&D in-house data indicate that Reg3G can induce the proliferation of Schwann cells, a property shared with Reg3B (12).
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