Dendrogram of representative nitroreductases families. Organisms and protein sequence gi numbers corresponding to each abbreviation are as follows: ActinobacillusA (152979535) and ActinobacillusB (152979206), Actinobacillus succinogenes; Aeromonas, Aeromonas salmonicida (145298746); Bacillush, Bacillus halodurans (15612866); BacillussA (16080862) and BacillussB (16077850), Bacillus subtilis; Burkholderia, Burkholderia thailandensis (83716954); ChromohalobacterA (92112337) and ChromohalobacterC (92113480); Chromohalobacter salexigens; Corynebacterium, Corynebacterium jeikeium (68536654); Clostridium, Clostridium difficile (126700824); Desulfovibrio, Desulfovibrio desulfuricans G20 (78355133); E. coli NfsA, E. coli K-12 b0851 (16128819); E. coli NfsB, E. coli K-12 b0578 (16128561); Enterococcus, Enterococcus faecalis (29375756); Erythrobacter, Erythrobacter litoraliss (85374565); Erwinia, Erwinia carotovora (50121266); Geobacter, Geobacter uraniumreducens (148263412); Klebsiella, Klebsiella pneumoniae (152969124); Lactococcus, Lactococcus lactis (125623424); ListeriaA (16799400) and ListeriaC (16799563), Listeria innocua; Moorella, Moorella thermoacetica (83590668); Neisseria, Neisseria gonorrhoeae (59800832); Nitrobacter, Nitrobacter winogradskyi (75676226); Pseudomonasp, Pseudomonas putida (148548471); Pseudomonass, Pseudomonas stutzeri (146282796); Psychrobacter, Psychrobacter sp. (148653797); Rubrobacter, Rubrobacter xylanophilus (108804130); SA0U02258, S. aureus SA0UHSC_02258 (88195929); SA0U00366, S. aureus SA0UHSC_00366 (88194164); SA0U02829, S. aureus SA0UHSC_002829 (88196463); SA NtrA, S. aureus SA0UHSC_00833 (88194591); Shigella, Shigella flexneri (24112221); Streptococcuss, Streptococcus sanguinis (125718603); Streptococcust, Streptococcus thermophilus (55821160); Thermosynecoccus, Thermosynechococcus elongatus (22299744); Thiomicrospira, Thiomicrospira crunogena (78484399); VibriocA (15640734) and VibriocB (15601395), Vibrio cholerae; Vibriof, Vibrio fischeri (59713296); Vibriov, Vibrio vulnificus (27366397).