FIG. 3.

Alignment of the amino acid sequences encoded by the stretches located in the 3′ vicinity of the major head (MHP) and tail (MTP) A2 genes after −1 frameshifting with the COG5492 and PFAM02368 (bacterial and phage surface proteins containing immunoglobulin-like domains) consensus motifs. The sequences of the portions of three individual proteins with different functions (a β-1-3-endoglucanase from Bacillus circulans, an adhesion factor from Clostridium acetobutylicum, and the major tail protein of phage K; see the text for references) that contain these motifs are also included for comparison.