RiboDB Database: A Comprehensive Resource for Prokaryotic Systematics

Ribosomal proteins(r-proteins) are increasingly used as an alternative to ribosomal rRNA for prokaryoticsystematics. However, their routine use is difficult because r-proteins are often not or wrongly annotated in complete genome sequences, and there is currently no dedicated exhaustive database of r-proteins. RiboDB aims at fulfilling this gap. This weekly updated comprehensive database allows the fast and easy retrieval of r- protein sequencesfrom publicly available complete prokaryoticgenome sequences. The current version of RiboDB contains 90 r-proteins from 3,750 prokaryoticcomplete genomes encompassing 38 phyla/major classes and 1,759 different species. RiboDB is accessible at http://ribodb.univ-lyon1.fr and through ACNUC interfaces.