Transcription factors (TFs) are a group of cellular proteins that play essential roles in regulating gene expression. Monitoring the activation of multiple TFs simultaneously is critical to understand the molecular mechanism of cellular regulation underlying cell signaling and gene expression. Signosis� Combo TF activation profiling plate array is a single array that can be used for the measurement of the activity of 192 different TFs containing comprehensive functional TFs for ER stress, mitochondria UPR stress, Oxidative stress, as well as disease-related TFs, including heart, liver, kidney, ovary, etc.  Optimal for analysis of multiple mammalian cells such as human, mouse, rat, sheep, and pig etc. The differences of samples can be quantitatively analyzed and compared at once. There are four 96-well plates included in the kit along with the reagents for the assay.