Table 2.
Efficiency of the probe mapping.
| Transcripts | Gene Loci | TOTAL N of probes mapped | TOTAL N of probes in the microarray | Mapping efficiency | |||||||
| 1 | >1 | 1 | >1 | ||||||||
| N probes | % | N probes | % | N probes | % | N probes | % | ||||
| Microarray | |||||||||||
| HG U133A | 85075 | 44,60% | 105677 | 55,40% | 180188 | 94,46% | 10564 | 5,54% | 190752 | 241898 | 78,86% |
| HG U133 Plus 2.0 | 150060 | 47,74% | 164260 | 52,26% | 299482 | 95,28% | 14838 | 4,72% | 314320 | 594532 | 52,87% |
| Human Gene 1.0 | 387229 | 54,45% | 323912 | 45,55% | 658258 | 92,56% | 52883 | 7,44% | 711141 | 804372 | 88,41% |
| Human Exon 1.0 | 614549 | 45,75% | 728669 | 54,25% | 1263553 | 94,07% | 79665 | 5,93% | 1343218 | 5270588 | 25,49% |
Efficiency of the probe mapping for four human Affymetrix microarray models: U133A, U133 Plus 2.0, Gene 1.0 and Exon 1.0. Efficiency is defined as the proportion of probes from the total probes of a given microarray that map to Ensembl human genes or transcripts. N corresponds to number of probes.