A collection of diverse 16S and 16S-like rRNA secondary structure diag
rams are available. This set of rRNAs contains representative structur
es from all of the major phylogenetic groupings - Archaea, (eu)Bacteri
a, and the nucleus, mitochondrion, and chloroplast of Eucarya. Within
this broad phylogenetic sampling are examples of the major forms of st
ructural diversity currently known for this class of rRNAs. These stru
cture diagrams are available online through our computer-network WWW s
erver and anonymous ftp, as well as from the author in hardcopy format
.