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Table 2 Proportion of genes expressed in same direction between platforms ignoring expression level. The numbers of genes in matched and mismatched directions are given for each cell line and each platform pair, and agreement is given in percentages.

From: Three microarray platforms: an analysis of their concordance in profiling gene expression

Array Platform: Cell line: Direction-matched Direction-mismatched (ignoring expression level) Total number of genes used in calculation Percent agreement in direction
GEM2 & Operon V2 Jurkat 4597 1373 5970 77 %
  L428 3535 1251 4786 74 %
  SUDHL 4608 1525 6133 75 %
  Ocily3 4094 1368 5462 75 %
  LNCaP 4189 1333 5522 76 %
  MCF10A 4469 1429 5898 76 %
  Total 25492 8279 33771 75 %
GEM2 & HG-U133A Jurkat 3657 906 4563 80 %
  L428 3203 918 4121 78 %
  SUDHL 3541 809 4350 81 %
  Ocily3 3826 984 4810 80%
  LNCaP 3747 1031 4778 78 %
  MCF10A 3584 950 4534 79 %
  Total 21558 5598 27156 79 %
Operon V2 & HG-U133A Jurkat 3688 795 4483 82 %
  L428 2909 738 3647 80 %
  SUDHL 3520 776 4296 82 %
  Ocily3 3509 947 4456 79 %
  LNCaP 3607 860 4467 81 %
  MCF10A 3511 898 4409 80 %
  Total 20744 5014 25758 81 %