Transcreener(R) GDP FI Assay

The Transcreener(R) GDP FI Assay is a competitive immunoassay for GDP with a red fluorescent intensity (FI) readout. Designed specifically for HTS and featuring a single addition mix-and-read format and room temperature reagent stability, the Transcreener GDP FI Assay is compatible with plate readers typically found in research labs as well as those used in HTS core facilities. The 3014-A kit is formatted for 96-well plates while the 3014-1K and 3014- 10K kits are for 384-well and higher densities. ¶Able to accommodate GTP concentrations ranging from 0.1 to 1,000 µM, the Transcreener GDP FI Assay provides excellent data quality (Z' > 0.7) at low substrate conversion (typically 10% or less). Because the proprietary antibody used is highly selective for GDP, the assay can be used with any enzyme that converts GTP to GDP, including small G proteins. (Note that many commercially available GTPase preparations contain GDP as a stabilizer, which must be removed or diluted prior to use with this assay so as not to contribute to background signal.