Alignment of TPS of T. thermophilus RQ-1. The deduced amino acid sequence of otsA of RQ-1 was aligned with those of homologous proteins: Styph, Salmonella enterica serovar Typhimurium (GenPept AF213176); Rhisp., Rhizobium sp. (GenPept AAB91813); Mtube, M. tuberculosis (GenPept CAB08713); Rsola, Ralstonia solanacearum (GenPept CAD17882); Ecoli, E. coli (GenPept AAC74966). Black shading represents identity, and gray shading represents conservative changes.