An algorithm for recognition of prokaryotic ribosomal binding sites is sugg
ested. The parameter library contains weight matrices for mapping of gene s
tarts in various bacterial genomes. Comparison of. the ribosome binding sta
rts in different taxonomic groups demonstrates that the signals in Gram-pos
itive bacteria are stronger than in Gram-negative bacteria, and in particul
ar, Enterobacteria. The recognition matrices are available by e-mail misha@
imb.imb.ac.ru.