FIG. 1.
Partial sequence alignment for σ70 proteins showing a 2-aa insert (boxed area) in a conserved region that is uniquely present in Deinococcus, Thermus, and Meiothermus homologs. Dashes in this and all other alignments indicate identity to the amino acid on the top line (E. coli protein). The position of this sequence region in the E. coli protein is indicated at the top. The accession numbers of different proteins are provided in the second column. Sequence information for only representative species from different bacterial groups is presented. The sequences marked with an asterisk were cloned and sequenced in the present work. Abbreviations for the species names are as follows: A., Agrobacterium; Aqu., Aquifex; Bac., Bacillus; Bact., Bacteroides; Bif., Bifidobacterium; Bor., Borrelia; Buch., Buchnera; C., Caulobacter; Camp., Campylobacter; Cfx., Chloroflexus; Chl., Chlamydia; Chlam., Chlamydophila; Clo., Clostridium; Cor., Corynebacterium; Cyt., Cytophaga; D., Deinococcus; Des., Desulfovibrio; E., Escherichia; Ent., Enterococcus; Fuso., Fusobacterium; Geo., Geobacter; H., Haemophilus; Hel., Helicobacter; Helio., Heliobacillus; L., Lactococcus; Lep., Leptospira; Lis., Listeria; M., Mycoplasma; Mei., Meiothermus; Myc., Mycobacterium; Nei., Neisseria; Nit., Nitrosomonas; Oce., Oceanobacillus; Pas., Pasteurella; Pse., Pseudomonas; Ral., Ralstonia; Rh., Rhodobacter; Rho., Rhodospirillum; R., Rickettsia; Sal., Salmonella; Sta., Staphylococcus; Str., Streptomyces; Strep., Streptococcus; Sy., Synechocystis; Syn., Synechococcus; T., Thermotoga; Thermo., Thermoanaerobacter; The., Thermus; Thermosyn., Thermosynechococcus; Tre., Treponema; Tri., Trichodesmium; Troph., Tropheryma; V., Vibrio; X., Xylella. GNS, green nonsulfur bacteria; Gram(+)ve, gram-positive.