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Table 1 Statistics of probe-to-transcript mapping and redefinition of probe sets

From: Transcript-based redefinition of grouped oligonucleotide probe sets using AceView: High-resolution annotation for microarrays

  U95A U133A U133 Plus 2
Total probe sets from Affymetrix 12,413 22,238 54,630
Total probe sets, newly defined 22,609 38,416 70,092
Identical to original Affymetrix probe sets 3,804 (17%) 5,845 (15%) 15,376 (22%)
Derived from 1 Affymetrix probe set 16,916 (75%) 27,562 (72%) 45,217 (65%)
Derived from >1 Affymetrix probe sets 1,889 (8%) 5,009 (13%) 9,499 (14%)
Probe sets containing ≥ 4 probes 13,496 19,854 42,157
Total unique probe sequences (_at probes) 199,270 241,200 593,834
Probes matching ≥ 1 transcript in AceView 180,594 (91%) 216,395 (90%) 476,624 (80%)
Probes matching ≥ 1 transcript in RefSeq 162,888 (82%) 194,728 (81%) 312,021 (52%)
Total number of AceView transcripts matched 65,952 82,457 119,204
Total number of RefSeq transcripts matched 17,370 22,787 30,788
  1. Probes matching non-human sequences or duplicated probe sequences were excluded from the calculation.