Figure 3.

Expression pattern (in a set of 31 tissues covered by MPSS) of genes belonging to all three types of S-AS pairs (3'3', 5'5'and embedded). (a) Categories are as follows: 'no expression', for S-AS pairs whose expression was not detected (see Materials and methods for details); 'single-gene expression', for S-AS pairs in which expression is observed for only one gene in the pair; 'co-expression', for pairs in which expression is seen for both genes in the pair. (b) Rate of differential expression for the set of co-expressed S-AS pairs. Ratio of sense/antisense genes in the pair is shown on the x-axis.