phylogenetic distribution

The database currently (July 5, 2000) contains 96 modified ribonucleoside entries, distributed by RNA type and phylogenetic source as shown in following table:

_______________________________________________________________

                                           Source
                           ____________________________________

                              Archaea   (eu)Bacteria   Eukarya
_______________________________________________________________

 tRNA                             37          42          47
 rRNA                                          1a          4a
     SSU                          12           8          18
     LSU                           8          14          12
     5S                            3                       1
     5.8S                                                  5
 mRNA                                                     13
 tmRNA                                         2
 snRNA                                                    11
 chromosomal RNA                                           2
 other small RNA                                           1
_______________________________________________________________
a Subunit origin not designated, or is reported in a mixture of SSU and LSU rRNAs.

Updated from: Rozenski, J., Crain, P.F. and McCloskey, J.A. Nucleic Acids Res. 27, 196-197 (1999).