Putative antitoxins members of the TasAB family. Multiple alignments of the putative antitoxins related to the TasA antitoxin of pGI1. Only TasA-like proteins with obvious downstream TasB-like partners (see Fig. 4) were included in this comparison. The most conserved amino acids (>50%) are in grey. The names of the bacterial strains where these loci were found are indicated in the left column. The consensus sequence is displayed in the last line.