TABLE 2.
Types of variations found in the conserved core of hemiascomycete RNase P RNAs
| Domain I | Domain II | |||||||||
| Deletion | Insertion | |||||||||
| Species | P7.2 | eP6.1 | P7.1 | eP8.1 | P10a | P11.1 | P2.1 | P3b.1 | P3c | P7a |
| Arxiozyma telluris | — | 60 | — | — | 12 | — | — | — | — | |
| Saccharomyces globosus | — | — | — | 20 | — | — | — | — | — | |
| Naumovia dairenensis | X | 66 | — | — | — | — | — | — | — | — |
| Candida glabrata | — | 31 | 485 | — | — | — | — | — | 230 | |
| Kluyveromyces polysporus | 20 | — | — | — | — | — | — | — | — | |
| Zygosaccharomyces rouxii | — | — | — | — | — | — | 15 | — | — | |
| Zygosaccharomyces florentinus | — | 33 | — | — | — | — | — | — | — | |
| Torulaspora delbrueckii | — | 25 | — | — | — | — | — | — | — | |
| Kluyveromyces lactis | — | 28 | — | — | — | — | 17 | 133 | — | |
| Eremothecium gossypii | — | — | — | — | — | 19 | 59 | — | 41 | |
| Saccharomycopsis fibuligera | — | 22 | — | — | — | — | — | — | — | |
| Candida stellatoidea | — | 30 | — | — | — | — | — | — | 14 | |
| Candida krusei | — | 30 | — | — | — | — | — | — | 14 | |
| Pichia mississippiensis | X | — | — | — | — | — | — | — | — | — |
| Pichia strasburgensis | X | — | — | — | — | — | — | — | — | — |
| Pichia canadensis | — | 29 | — | — | — | — | — | — | — | |
| Candida parapsilosis | X | — | — | — | — | — | — | — | — | — |
| Candida tropicalis | X | — | — | — | — | — | — | — | — | — |
| Candida albicans | X | — | — | — | — | — | — | — | — | — |
The variations were deduced from phylogenetic comparative analysis. The helices names inserted or deleted in the conserved core (Fig. 3) are indicated horizontally and vertically, the species names in which these variations were observed. The order respects the phylogenetic order in the alignment (Fig. 4). The numbers indicate the length (in nucleotides) of each insertion. The first line indicates in which domain the variations occur. The domain of P7a is not indicated since this helix is still undefined structurally. The new types of helical insertions are bold. The 17 other species (Candida guilliermondii, Clavispora lusitaniae, Clavispora opuntiae, Debaryomyces hansenii, Kluyveromyces thermotolerans, Kluyveromyces waltii, Naumovia castellii, Saccharomyces cerevisiae, Saccharomyces kluyveri, Saccharomyces kudriavzevii, Saccharomyces mikatae, Saccharomyces pastorianus, Saccharomyces servazzii, Saccharomyces unisporus, Wickerhamia fluorescens, Yarrowia lipolytica, Zygosaccharomyces bailii) without variations and composed only of the conserved core are not in the table.