Fig. 2

Functional motif analysis in GGT family. Figure shows three putative motifs M1, M2 and M3 identified by MEME in the GGT alignment of 47 sequences. Each motif carries 21 amino acids. Detailed localizations of all three motifs are marked on sequence alignment figure in Additional file 1. Motif M1 is on large subunit whereas M2 and M3 are localized on small subunit of GGT. As a reference, the identified motifs of E. coli GGT are labeled below each motif