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A collection of utilities for mass spectrometry studies of nucleic acids.

A comprehensive listing of post-transcriptionally modified nucleosides from RNA.

A compilation of posttranscriptional modification sites in RNA from the small ribosomal subunit. Includes identitites of modified nucleosides, if known, and provision for comparison of modifications in alighned sequences from Bacteria, Archaea and Eukarya.

The new compilation of tRNA Sequences and Sequences of tRNA genes contains in addition to 3279 sequences of the last edition from 1998 (1) the completely new Genomic tRNA Compilation including the sequences of tRNA genes from complete genomes published up to september 2004.

tmRNA gene sequences have been identified in all completely sequenced bacterial genomes (in 17 of 20 phyla) and in certain phage, mitochondrial and plastidial genomes, but not (yet!) in archaeal or eukaryotic nuclear genomes.

tmRDB (tmRNA Database) provides aligned, annotated and phylogenetically ordered sequences related to structure and function of tmRNP.

The noncoding RNA (ncRNA) database is intended to provide information on the sequences and functions of transcripts which do not code for proteins, but perform regulatory roles in the cell. Currently, the database includes over 30,000 individual sequences from 99 species of Bacteria, Archaea and Eukaryota.

Small Nucleolar RNAs (snoRNAs) from the Yeast Saccharomyces cerevisiae: 

A comprehensive database of 
S. cerevisiae H/ACA and C/D box snoRNAs.

5S ribosomal RNA is an integral component of the large subunit of all cytoplasmic and most organellar ribosomes. The purpose of this database is to provide information on nucleotide sequences of 5S rRNAs and their genes.