APOPTRAK™ is a chemical derivative of DRAQ5™. It is a novel cellular probe that can enter both intact and compromised cells, differentially revealing the relative integrity of an individual cell membrane. APOPTRAK™ is a useful probe for use in apoptosis assays.
APOPTRAK™ enters LIVE cells slowly and leaky (apoptotic) cells rapidly, to give a signal intensity difference of between 5- and 10-fold, depending on the cell type and treatment. This allows a positive discrimination between these two populations. APOPTRAK™ benefits from all the advantageous ""far-red"" spectral properties of its parent, but differs significantly in its rate of entry into LIVE cells.
Key benefits include:-
Published data (Wiltshire et al, Cytometry 2000) suggests an ability of APOPTRAK™ to discriminate early and late apoptotic cells when used in combination with Annexin V.