Table 3.
Alternative gene expression in CD34+ cells
| Type | Mapped sequences (%) | Mapped by | Upstream (%) | 3′ end (%) | Mapped antisense (%) | Mapped noncoding (%) |
|---|---|---|---|---|---|---|
| A. Alternative initiation | ||||||
| 5′ EST | 1,090 | |||||
| Mapped promoter | 503 (100) | |||||
| Single promoter gene | 157 (31) | |||||
| Multiple promoter gene | 346 (69) | |||||
| Promoter structure | ||||||
| TATA−, CpG island+ | 333 | |||||
| TATA+, CpG island− | 27 | |||||
| TATA−, CpG island− | 91 | |||||
| TATA+, CpG island+ | 52 | |||||
| B. Alternative splicing and adenylation | ||||||
| 3′ EST | 2,786 (100) | 894 (32) | 1,892 (68) | |||
| SAGE tag | 11,136 (100) | 8,118 (73) | 3,018 (27) | |||
| longSAGE tag | 7,512 (100) | 3,723 (50) | 3,788 (50) | |||
| C. Antisense transcription | ||||||
| Known antisense transcripts | 7,356 (100) | |||||
| EST | 697 | 441 | ||||
| SAGE tag | 1,346 | 1,478 | ||||
| longSAGE tag | 993 | 993 | ||||
| Total | 1,864 (25)* | |||||
| D. Noncoding transcripts | ||||||
| Known noncoding transcripts | 2,354 (100) | |||||
| EST | 958 | 660 | ||||
| SAGE tag | 345 | 405 | ||||
| longSAGE tag | 112 | 144 | ||||
| Total | 923 (39)* |
*The numbers refer to nonredundant sequences.