Table 1. Original and duplicated intron-exon boundaries at the C. elegans sta-1 locus. The length and percentages of identity of duplicated fragments were calculated for exons and flanking sequences.
| Note | —intron— | —EXON— | —intron— | |
|---|---|---|---|---|
| Exon 1 |
original |
…atttccagACATGATG…TGCTACAGgttggttc… |
||
| duplicate |
…atttccagACATGATG…TGCTACAGgttggtac… |
|||
| length/identity |
203 bp/96% |
310 bp/99% |
172 bp/76% |
|
| Exon 2 |
original |
…atttccagACCCAACT…TCACTGAGgtttgttt… |
||
| Exon 3 |
original |
…atttccagGTCCGTCT…AAGGAAATgtgagttt… |
||
| duplicate |
…atttccagGCCCGTCT…AAGGAAATgtgcgttt |
|||
| length/identity |
40 bp/100% |
128 bp/98% |
117 bp/89%* |
|
| Exon 4 |
original |
…tttttcagCCGTAACA…TGAGCAAAgtaagttg… |
||
| duplicate |
…tttttcagCCGTAACA…TGAGCAAAgtaagttg… |
|||
| length/identity |
8 bp/100% |
238 bp/100% |
238 bp/79% |
|
| Exon 5 |
original |
…tttaacagGAAGAACA…GATATTCGgttagttt… |
||
| Exon 6 |
original |
…aatttcagATACATGT…ACAAATGGgtaggtta… |
||
| inverse duplicate |
…aatttcagATACATGT…ACAAATGGgtaggtta… |
|||
| length/identity |
157 bp/90% |
135 bp/99% |
42 bp/98%† |
|
| Exon 7 |
original |
…tattttagGAATTTCA…ATGGAGATgtgagtga… |
||
| inverse duplicate |
…tattttagGAATTTCA…ATGGAGATgtgagtga… |
|||
| length/identity |
42 bp/98%† |
123 bp/100% |
223 bp/96%‡ |
|
| Exon 8§ | original |
…tttccagGTCCGACG…ACTGTAAAtcgaatgt… |
||
| inverse duplicate |
…agtgcagACTTGGTC…ATCACAAAtgtgctat… |
|||
| length/identity | NA/NA | 84 bp/100% | NA/NA | |
*
Intron 3 is 164 bp long and is not duplicated in its entirety. †Intron 6 is 42 bp long and is not duplicated in its entirety together with exons 6 and 7. ‡Intron 7 is 223 bp, and is duplicated in its entirety together with exon 7 and the first 22 bp of exon 8. §Exon 8 is 407 bp long, only 5′ end 84 bp is duplicated and the flanking sequences do not share any significant identities. Thus identity analysis is not applicable (NA).