TRAC (Transcript Analysis with the aid of Affinity Capture) is a novel method of gene expression analysis. TRAC meets the needs of a growing number of life science and pre-clinical drug studies, as users can investigate a large panel of genes in thousands of samples quickly, efficiently and accurately without comprising on sample number or study depth.
Microarrays are well suited for studies where the genes of interest are not known and only a few samples are to be investigated. This is often the first step before running focused assays.
Conventional qPCR is used when only a few targets need to be investigated, using a limited pool of samples (ten to a few hundred).