C-peptide (mouse/rat) LANCE Ultra TR-FRET Detection Kit, 500 Assay Points

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.

• No-wash steps, no separation steps
• TR-FRET technology
• Sensitive detection
• High reproducibility
• Faster time-to-results
• Easy automation
• 96-well, 384-well, and 1536-well formats

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.