| GENES | |
| Human genes defined by mRNAs | 18 008 genes |
| Human genes defined by mRNAs & EST | 16 053 genes |
| Mouse genes defined by mRNAs | 13 913 genes |
| TRANSCRIPTS | |
| Human mRNAs | 112 609 transcripts |
| Human ESTs | 1 154 554 transcripts |
| Mouse mRNAs | 78 170 transcripts |
| EXONS | |
| Human exons | 201 245 exons |
| Mouse exons | 157 920 exons |