The LANCE® Ultra Residual DNA Contamination Detection Kit is designed for detection and quantitation of DNA contaminants in buffered solution and cell culture media using a homogeneous TR-FRET (no-wash steps, no separation steps) assay.
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For research use only. Not for use in diagnostic procedures.
The LANCE® Ultra Residual DNA Contamination Detection Kit is designed for detection and quantitation of contaminating DNA in buffered solution and 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.
Biologics can be impacted negatively by contamination with DNA introduced during fermentation and purification processes. While the use of serum-free media in the manufacturing process significantly improved the success rate on preventing DNA impurities, other routes of contamination, such as microbial contamination, still remain a concern. It is thus critical to remove and monitor DNA impurities at each step in the purification process. This kit is designed to quantify the levels of DNA (from different hosts, either double- or single-stranded and of varying fragment sizes) in cell culture supernatants.
Assay Target | Residual DNA |
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Assay Target Class | DNA |
Automation Compatible | Yes |
Detection Method | Time-Resolved Fluorescence (TRF), TR-FRET |
Experimental Type | In vitro |
Product Brand Name | LANCE Ultra |
Shipping Condition | Blue Ice |
Therapeutic Area | Biologics/Bioprocess |
Unit Size | 10,000 Assay Points |
This manual explains how to run the LANCE Ultra TR-FRET contaminating DNA detection assay.