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The LANCE® Ultra Mouse C-peptide Detection Kit is designed for detection and quantitation of Mouse C-peptide in cell culture media using a homogeneous TR-FRET (no-wash steps, no separation steps) assay.
LANCE® and LANCE® (Lanthanide chelate excite) Ultra are our TR-FRET (time-resolved fluorescence resonance energy transfer), homogeneous (no wash) technologies. One antibody of interest is labeled with a donor fluorophore (a LANCE Europium chelate) and the second molecule is labeled with an acceptor fluorophore (ULight™ dye). Upon excitation at 320 or 340 nm, energy can be transferred from the donor Europium chelate to the acceptor fluorophore if sufficiently close for FRET (~10 nm). This results in the emission of light at 665 nm.
Mature Connecting Peptide (C-Peptide) is a 31 amino acid peptide that is a product from the proteolytic processing of proinsulin. In mouse and rat, contrary to humans, two isoforms of C-Peptide are present (isoforms 1 and 2). Through its G-protein coupled membrane receptor, C-Peptide activates Ca2+-dependent intracellular signaling pathways, resulting in subsequent activation of both Na+ /K+ ATPase and endothelial nitric oxide synthase. C-Peptide and insulin are co-secreted in equimolar amounts in the bloodstream by pancreatic beta cells of the islets of Langerhans. However, C-Peptide has a longer half-life than insulin in serum, making it a good indicator of endogenous insulin production. A lack of endogenous C-Peptide contributes to development of long-term microvascular complications in the nerves, the kidneys, and the retina in Type 1 diabetes patients. C-Peptide has been considered as a possible therapy to prevent long-term complications of diabetes.
Assay Target | C-peptide |
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Assay Target Class | Peptide |
Automation Compatible | Yes |
Detection Method | Time-Resolved Fluorescence (TRF), TR-FRET |
Experimental Type | In vitro |
Shipping Condition | Blue Ice |
Therapeutic Area | Metabolic |
Unit Size | 500 Assay Points |
The introduction of enzyme-linked immunosorbent assays (ELISAs) in the early 1970’s offered researchers a non-radiometric immunoassay platform without compromising sensitivity. Over the last 50 years scientists have made huge strides in disease research and drug discovery and a demand for greater assay throughput and sensitivity has evolved. In response, more robust immunoassays have been developed to address some of the limitations of the standard, colorimetric ELISA.
Find out about the most common limitations of traditional ELISAs and how different ELISA alternative technologies address these limitations.