CagM (Green) CagC-C dimer- (Blue) Bond forming atoms of residues of Dimer-1 Bond forming atoms of residues of Dimer-2 Bond-Distance (Å) Lys198 Thr80 N2 OG1 2.2 Asn206 Ileu74 OD1 CD1 1.3 Ser196 Glu110 OG OE1 2.9 Asn207 Gln78 OD1 OE1 3.8 Phe255 Asp73 O OD2 3.9 Lys371 Lys103 N2 N2 2.2 Ileu6 Gln78 CD1 O 1.5 Ala3 Gln78 CB OE1 4.8

Table 5: Detail of bond formation by interacting atoms and residue of the trimer formed by CagM and CagC-C dimers interaction.