Chip types: HT_HG-U133A & HT_HG-U133B
HT Human Genome U133 Array Plate Set
Early access versions of the HT_HG-U133A chip type were labelled U133AAofAv2(*) and HT_HT-U133A_EA.
Footnote: (*) The evidence for this comes from comparing spatial images of a CEL file with U133AAofAv2 [PNG] in the header with one with HT_HT-U133A [PNG]. Both have the same spatial patterns, i.e. blocks of checkered blocks and control probes, "landing lights", and positive controls spelling out 'GeneChip' and 'HG-U133 AofAv2'.
> cdf <- AffymetrixCdfFile$byChipType("HT_HG-U133A") > cdf AffymetrixCdfFile: Path: annotationData/chipTypes/HT_HG-U133A Filename: HT_HG-U133A.cdf Filesize: 38.72MB Chip type: HT_HG-U133A RAM: 0.00MB File format: v3 (text; ASCII) Dimension: 744x744 Number of cells: 553536 Number of units: 22277 Cells per unit: 24.85 Number of QC units: 7
> cdf <- AffymetrixCdfFile$byChipType("HT_HG-U133B") > cdf AffymetrixCdfFile: Path: annotationData/chipTypes/HT_HG-U133B Filename: HT_HG-U133B.cdf Filesize: 38.45MB Chip type: HT_HG-U133B RAM: 0.00MB Dimension: 744x744 Number of cells: 553536 Number of units: 22665 Cells per unit: 24.42 Number of QC units: 4