Description
The proglucagon gene is expressed in both pancreatic A cells and intestinal L cells. Tissue-specific post-translational processing of proglucagon by the prohormone convertase produces the different proglucagon derived peptides (PGDPs) in both pancreas and intestine. The most notable pancreatic PGDP is glucagon, whereas the L cells produce several structurally related peptides, including glucagon-like peptide (GLP)-1 and GLP-2, as well as glicentin and oxyntomodulin, which contain glucagon sequence in their molecules. Among PGDPs, GLP-2 has recently been found to show intestinal epithelial proliferation. GLP-1 has a major effect of enhancing the release of insulin in response to a glucose stimulus, and coincidentally, suppressing secretion of glucagon. GLP-1 has been shown to potently inhibit several aspects of digestive function, including gastric emptying, gastric secretion and pancreatic secretion.
Storage / Stability
The antibody is stable for at least 1 year from the date of receipt when stored at -20°C to -70°C. Reconstituted antibody can also be aliquotted and stored at 4°C for 1 month or at -20°C to -70°C in a manual defrost freezer for many months without detectable loss activity. Please avoid freeze-thaw cycles.
Specificity
The rabbit anti-human Glucagon-like peptide-1 antibody detected specifically target derived from human recombinant protein and cellular lysates. Cross reactivity with mouse and rat GLP-1 has not yet been tested.
References
- Tang-Christensen, M and et al., Glucagon-like peptide 1(7-36) amide's central inhibition of feeding and peripheral inhibition of drinking are abolished by neonatal monosodium glutamate treatment. Diabetes47, 530537 (1998).
- McMahon, L.R. & Wellman, P.J. PVN infusion of GLP-1-(736) amide suppresses feeding but does not induce aversion or alter locomotion in rats. Am. J. Physiol. 274, R23R29 (1998). Turton, M.D. et al. A role for glucagon-like peptide-1 in the central regulation of feeding. Nature 379, 6972 (1996).
Expiration:
12 months from the date of shipment when stored properly.