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Table 2 Summary of array content

From: A comparison of Affymetrix gene expression arrays

  U133 HuEx type HuGene
Number of Probes (Affymetrix) 604,258 1,073,146 core 844,550
  - 2,001,552 extended -
  - 2,152,537 full -
Number of Probesets (Affymetrix) 54,675 22,010 core 33,252
Number of Probesets (Ensembl-gene) 17,271 28,206 - 27,901
Number of Probesets (Ensembl-exon) - 219,230 - 206,728