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Table 1 Comparison of locus projections in the PTI on chromosomes 20 and 22 to Sanger-annotated genes

From: A comprehensive transcript index of the human genome generated using microarrays and computational approaches

   Sanger chromosome 20, genes Non-Sanger chromosome 20, genes Sanger chromosome 22, genes Non-Sanger chromosome 22, genes
Sanger genes (including pseudogenes)   1,297   936  
Locus projection categories     
High-confidence categories RefSeq 676 (30) 8 375 (47) 12
  Ab initio + expressed sequence + protein 336 (63) 10 285 (127) 10
  Ab initio + expressed sequence 38 (2) 96 28 (7) 74
  Ab initio + protein 28 (11) 37 31 (18) 29
  Expressed sequence + protein 38 (30) 37 36 (30) 24
Low-confidence categories Ab initio 22 (4) 674 50 (21) 362
  Protein 17 (14) 157 18 (13) 121
  Expressed sequence 22 (2) 1,591 31 (7) 1,127
Higher-confidence categories   1,116 (136) 188 755 (229) 149
All categories   1,177 (156) 2,610 854 (270) 1,759
  1. Columns 1 and 3 provide the number of locus projections in the PTI set that overlap Sanger genes for chromosomes 20 and 22, respectively. The numbers given in parentheses indicate the number of Sanger-annotated pseudogenes; these pseudogenes were not used when summarizing the results. Columns 2 and 4 give the number of genes in the PTI set that were not overlapping Sanger genes.