Table 1.

Summary of the total numbers of EST sequences and UniGene clusters included in the TS-REX database, and of the numbers of pathologies, systems, organs, tissues and cell types included in the TS-REX hierarchical classification

	H. sapiens	M. musculus
Total number of ESTs	6 509 336	4 029 157
Total number of UniGene clusters	123 993	82 105
Number of pathologies (non-tumor, tumor)	2	2
Number of systems	16	16
Number of organs	62	48
Number of tissues	155	75
Number of cell types	44	64