The Ribosomal Database Project.


The Ribosomal Database Project (RDP) is a curated database that offers ribosome-related data, analysis services, and associated computer programs. The offerings include phylogenetically ordered alignments of ribosomal RNA (rRNA) sequences, derived phylogenetic trees, rRNA secondary structure diagrams, and various software for handling, analyzing and displaying alignments and trees. The data are available via anonymous ftp (, electronic mail (server/ and gopher ( The electronic mail server also provides ribosomal probe checking, approximate phylogenetic placement of user-submitted sequences, screening for chimeric nature of newly sequenced rRNAs, and automated alignment.

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