Table 1.
RC transposons in the A. thaliana, O. sativa, and C. elegans genomes
| Family | Length, bp | Rep-helicase | RPA | Nonautonomous families |
|---|---|---|---|---|
| A. thaliana | ||||
| Helitron1 (7) | 15,809 | ATHEL1p | ATRPA1H1p, ATRPA1H2p | Helitrony1A (1348, 10), Helitrony1B (1311, 10), Helitrony1C (3058, 10), Helitrony2 (11114, 10), Atrepx1 (2432, 20), Atrep1 (888, 100), Atrep2 (564, 150), Atrep3 (2097, 150), Atrep4 (2240, 50), Atrep5 (2386, 50), Atrep6 (1189, 30), Atrep7 (940, 50), Atrep8 (1077, 40), Atrep9 (899, 10), Atrep10 (899, 50), Atrep10A (1380, 20), Atrep10B (1821, 20), Atrep10C (653, 20), Atrep11 (1053, 50), Atrep12 (1342, 10), Atrep13 (648, 30) |
| Helitron2 (6) | 11,435 | ATHEL2p | ATRPA2Hp | |
| Helitron3 (2) | 15,333 | ATHEL3p | ATRPA3H1p, ATRPA3H2p, ATRPA3H3p | |
| Helitron4 (5) | 17,261 | ATHEL4p | ATRPA4H1p, ATRPA4H2p, ATRPA4Hp3 | |
| O. sativa | ||||
| Helitron1_OS (1) | 10,182 | OSHEL1p | OSRPA1Hp | |
| Helitron2_OS (2) | 15,167 | OSHEL2p | OSRPA2Hp | — |
| Helitron3_OS (1) | 12,693 | OSHEL3p | OSRPA3Hp | |
| C. elegans | ||||
| Helitron1_CE (7) | 8,484 | CEHEL1p | — | Helitrony1_CE (2593, 50), Helitrony1A_CE (3023, 50), Helitrony2_CE (245, 200), Helitrony3_CE (193, 100), Helitrony4_CE (1855, 100), NDNAX1 (2085, 100), NDNAX2 (2844, 100), NDNAX3 (1591, 100) |
| Helitron2_CE (1) | 5,514 | CEHEL2p | — |
Rep-helicase, proteins composed of the RCR Rep and DNA helicase domains. Numbers of copies per haploid genome are shown in parentheses. Length of the consensus sequence and numbers of copies per genome are shown together in parentheses for nonautonomous Helitrons.