Table 1.
A comparison of the presence (+), absence (−) or number of detectable RAD51, DMC1, RAD51 paralogue (Rad51par) and RecA proteins encoded by the genomes of a range of eukaryotic species, which are grouped into taxa and into five supergroups
| Supergroupa | Taxon | Organism | RAD51 | DMC1 | RAD51par | RecAb |
|---|---|---|---|---|---|---|
| Excavata | Parabasalida | T. vaginalis | + | + | 2 | − |
| Diplomonadida | G. intestinalis | − | 2 | − | − | |
| Euglenozoa | T. brucei | + | + | 4 | − | |
| T. vivax | + | + | 4 | − | ||
| T. congolense | + | + | 4 | − | ||
| T. cruzi | + | + | 4 | − | ||
| L. major | + | + | 3 | − | ||
| L. braziliensis | + | + | 3 | − | ||
| L. infantum | + | + | 3 | − | ||
| Heterolobosea | N. gruberi | + | + | 3 | − | |
| Chromalveolata | Stramenopile | T. pseudonana | + | − | 2 | − |
| Apicomplexa | C. parvum | + | + | 2 | − | |
| T. annulata | + | + | 1 | − | ||
| P. falciparum | + | + | 1 | − | ||
| T. gondii | + | + | 1 | − | ||
| Ciliophora | T. thermophila | + | + | 1 | − | |
| Plantae | Viridiplantae | O. sativa | + | + | 5 | 3 |
| A. thaliana | + | + | 5 | 3 | ||
| Amoebozoa | Entamoebidae | E. histolytica | + | + | 1 | − |
| Mycetozoa | D. discoideum | + | − | 5 | 1 | |
| Opisthokonta | Microsporidia | E. cuniculi | + | − | 1 | − |
| Fungi | S. pombe | + | + | 4 | − | |
| S. cerevisiae | + | + | 2 | − | ||
| U. maydis | + | − | 1 | − | ||
| Metazoa | C. elegans | + | − | 1 | − | |
| D. melanogaster | + | − | 4 | − | ||
| H. sapiens | + | + | 5 | − | ||
| G. gallus | + | + | 5 | − |
a
The supergroup Excavata is often split into two supergroups, one containing Euglenozoan, Heterolobosean and Jackobid (not shown) organisms, and the other containing Parabasalid, Diplomonad and Oxymonad (not shown) organisms.
b
Where characterized, eukaryotic RecA proteins are targeted to the mitochondrion or chloroplast.