Aminoacyl-tRNA synthetases database Y2K

The aminoacyl-tRNA synthetases (AARS) are a diverse group of enzymes that e nsure the fidelity of transfer of genetic information from DNA into protein , They catalyse the attachment of amino acids to transfer RNAs and thereby establish the rules of the genetic code by virtue of matching the nucleotid e triplet of the anticodon with its cognate amino acid. Currently, 818 AARS primary structures have been reported from archaebacteria, eubacteria, mit ochondria, chloroplasts and eukaryotic cells. The database is a compilation of the amino acid sequences of all AARSs, known to date, which are availab le as separate entries or alignments of related proteins via the WWW at htt p:/rose.man.poznan.pl/aars/index.html.