The Sentrix Human-6 BeadChip can be used to study expression of over 47,000 human transcripts. Researchers can generate whole-genome expression profiles for 6 samples in parallel on a single BeadChip. Array is composed of 3 micron features with average feature redundancy of 30-fold . All features are QCed by sequential hybridizations process called array decoding. Probes are fully screened all-full-length 50-mers. Assay requires 50-100ng of total RNA input. Array content is based on RefSeq and additional space is occupied by targets selected from Unigene build 163 and Gnomon databases.