Figure 6
A Venn diagram of three gene sets (DBTSS, old RefSeq, and new RefSeq). Gene sets from A to G (Bold alphabet) consist of genes in the regions bounded by the thick lines. D consists of Dn (genes whose 5' end sequences were not extended from the old RefSeq sequences with DBTSS data) and Dex (genes whose 5' end sequences were extended). G consists of Gn (genes whose 5' end sequences were not extended from the old RefSeq sequences with DBTSS data) and Gex (genes whose 5' end sequences were extended). Namely D = {Dn,Dex} and G = {Gn,Gex}. Genes in chromosomes 20, 21, 22 were denoted by U = {Cu, Eu, Fu, 
, 
}. Gene sets Cu, Eu,Fu, and are parts of C, E, F, Gn and Gex, respectively. Some of the numbers of the sets are given in [33], that is, |{D,G}| = 7889, |{Dex,Gex}| = 2683 and |{Dex,Gex}| / |{D,G}| = 0.34, where |{D,G}| denotes the number of genes in set {D,G}.