Table 3.
Comparison of splice donor and splice acceptor regions in four Pneumocystis species.
| Exon 1 | Intron Donor | Intron Acceptor | Exon 2 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| −3 | −2 | −1 | +1 | +2 | +3 | +4 | +5 | +6 | +6 | +5 | +4 | +3 | +2 | +1 | −1 | −2 | −3 | |
| D | W | D | G | T | W | W | D | W | W | W | W | Y | A | G | D | H | W | |
| PC | A | T | G | G | T | G | A | G | T | T | T | C | T | A | G | A | A | G |
| PW | A | T | G | G | T | A | T | G | T | C | T | A | C | A | G | A | T | T |
| PJ | G | A | G | G | T | A | T | G | T | T | G | G | C | A | G | A | T | C |
| PM | A | T | G | G | T | A | T | G | T | T | A | A | T | A | G | G | T | T |
Abbreviations are: A, adenine; C, cytosine; G, guanine; T, thymine; N, nucleotide; D, not cytosine; W, adenine or thymine; Y, thymine or cytosine; H, not guanine. The consensus sequence is from Thomas et al. (Thomas, C. F., Jr., Leof, E. B., and Limper, A. H. 1999)