Figure 1

Multiple sequence alignment. Invariant residues between sequences are typed red on a white background and residues conserved within each group are displayed as white letters on a red background. ECOL, E. coli (accession number PO8202); SHEW, Shewanella sp. ANA-3 (accession number A0KWX7); ACCE, A. cellulolytics ATCC 43068 (accession number GU188440); ALAC., Alicyclobacillus acidocaldarius (accession number AAY68209); BAST, B. stearothermophilus US100 (accession number CAI29261); BAHA, B. halodurans (accession number NP_242739); BALI, Bacillus licheniformis (accession number YP_080173.1); BASU, B. subtilis (accession number ACT82395); GEST, G. stearothermophilus (accession number ABY84698); GETH, G. thermodenitrificans (accession number Q5QKM7); LAFE L. fermentum (accession number ADJ94948); LAPL, L. plantarum (accession number Q88S84); LASA, Lactobacillus sakei 23 K (accession number YP_396468.1); THMA, T. maritim a (accession number Q9WYB3); THEN, T. neapolitana (accession number Q8RMB9); THSP, Thermus sp. (accession number AY225311); THMH T. mathranii (accession number ADH61392).