Fig 3.

Amino acid sequence alignment of GatG (PM1139) from Pasteurella multocida strain Pm70 (Swiss-Prot accession no. Q9CLS0) aligned with the galactosyltransferase LgtC from Neisseria meningitidis (Swiss-Prot accession no. P96945). Amino acids that are highly conserved within LgtC-related glycosyltransferases are highlighted in gray (23). LgtC amino acids involved in binding to Mn²⁺ are marked with squares. Amino acids in LgtC known to interact with the UDP or galactose region of the nucleotide sugar UDP-galactose are marked with open or filled circles, respectively, while those involved in binding to the acceptor molecule are marked with triangles (23).