General DatabasesTIGR database (Craig Venter Institute)DEG - Database of Essential Genes Microbial Genome Annotation System Bacillus subtilisSubtiWiki - Wiki for all genes in Bacillus subtilis Bacillus subtilis - SubtiList Web Server BSORF - Bacillus subtilis Genome Database DBTBS - Database of Transcriptional Regulation in Bacillus subtilis BGSC - Bacillus Genetic Stock Center Escherichia coliEscherichia coli - Colibri Web Server EcoCyc - Encyclopedia of Escherichia coli K-12 Genes and Metabolism RegulonDB - Transcriptional Network of E. coli K12 Essential Genes in E. coli EcoliWiki MycoplasmaMycoplasma pneumoniae MycoWiki - Wiki for all genes in MycoplasmaThe mollicutes Comparative GenomicsBiomed Central - System Biology Gateway IMG - Integrated Microbial Genomes JGI - Microbial Genomics PRODORIC - Prokaryotic Database of Gene Regulation MicrobesOnline