|Image provided by PE Biosystems Advanced Discovery Sciences|
Xpress-Screen detection system
Xpress-Screen combines Tropix Inc.'s chemiluminescence technology with the well-known and FDA-approved Digene Hybrid Capture® system for detection of DNA-RNA hybrids. This assay can measure a two- to threefold change in the level of rare mRNA transcripts present in as few as one to two copies per cell. This results in an effective sensitivity of 0.0017 attomole (1,000 molecules per well), one of the lowest numbers ever reported. Only 100 cells per well are needed to carry out a measurement.
Xpress-Screen can be used to study native mRNA expression in any...