FIG. 6.

Alignment of repeats in the C-terminal region of GTFA of L. reuteri strain 121. YG repeats consist of, from left to right, (i) four to six residues that usually include glycine and/or aspartate and/or asparagine residues (indicated in boldface type), (ii) a cluster of one to four residues (lightly shaded) that nearly always includes tyrosine (underlined), (iii) three to four poorly conserved residues, (iv) a glycine residue (boxed), (v) two poorly conserved residues, (vi) a residue that is usually hydrophobic (indicated in boldface italic type and lightly shaded), (vii) one poorly conserved residue, (viii) a neutral polar residue (darkly shaded) that is usually glycine or asparagine (indicated in bold type), (ix) one poorly conserved residue, and (x) three residues (darkly shaded) that include one to three hydrophobic residues (underlined) (19). Four repeats (rows 6, 7, 8, and 9) match exactly the consensus sequence defined by Giffard and Jacques (19). The other seven show lower homology with the YG repeats.