Table 4.
Localization of homologous snoRNA genes
| snoRNA | Yeast | Human | Arabidopsis |
| PFS1 (S) | snR55 (M) | U33 (I) | AtsnoR34 (C) |
| PFS2 (I) | snR71 (M) | U29 (I) | AtsnoR69 (C) |
| PFS3 (S) | snR70 (P) | U43 (I) | AtU43 (C) |
| PFS4 (S) | snR74 (P) | U27 (I) | AtU27 (C) |
| PFS5 (I) | snR67 (P) | U31 (I) | AtsnR31 (C) |
| PFS6 (I) | snR61 (P) | U38 (I) | AtU38 (C) |
| PFS7 (I) | snR38 (I) | snR38 (I) | AtsnoR38 (C) |
| PFS8 (S) | snR39b (M) | snR39b (I) | AtsnR39BY (C) |
| PFS9 (UTR) | N.A. | U49 (I) | AtU49 (C) |
| PFS10 (I) | snR56 (M) | U25 (I) | AtsnoR19 (C) |
| PFS11 (C) | snR87 (M) | U16 (I) | AtU15 (C) |
| PFS12 (C) | snR54 (I) | U59 (I) | AtsnoR59 (C) |
| PFS13 (S) | U18 (I) | U18 (I) | AtU18 (C) |
| PFS14 (S) | snR63 (M) | U46 (I) | N.A. |
| PFS15 (I, C) | snR64 (M) | U74 (I) | AtsnoR44 (C) |
| PFS16 (I, C) | snR64 (M) | U74 (I) | AtsnoR44 (C) |
| PFS17 (I) | snR73 (P) | U35 (I) | AtU35 (C) |
| PFS18 (I) | U24 (I) | U24 (I) | AtU24 (U) |
Genomic localization of homologous snoRNA genes of yeast, human and Arabidopsis, which guide methylation of similar sites as in Plasmodium. Localization information is given in the adjacent right hand side brackets. UTR, P, C, M, S, U and I stand for untranslated region, Polycistronic, Clustered, Monocistronic, single C/D box snoRNA in intergenic region, Unknown and Intron-encoded respectively.