HTRF® is based onand .
In HTRF® the lanthanide chelate is used as donor and is either Europium cryptate (Eu3+ cryptate) or Lumi4™-Tb (Tb2+ cryptate), and the acceptor is either XL665, a modified allophycocyanin, or d2, a second generation of acceptor. In addition, HTRF® implements a ratiometric measurement that uses both the emission wavelength of the donor and of the acceptor to correct for well-to-well variability and signal quenching from assay components and media, that is absent in other TR-FRET assays.
HTRF® is used to measure molecular interactions in many research areas, including:
Application Notes related to HTRF®
A microplate reader with the following characteristics is recommended:
- Fluorescence measurement using filters
- Flash lamp as light source
- Detector with extended spectral range (above 650 nm)
All microplate readers below are recommended for HTRF®.
HTRF® is a registered trademark of Cisbio Bioassays.