Fig. 5

Comparison among the four carbohydrate-binding proteins from M. tuberculosis. A The crystallographic structures of UgpB (PDB ID: 4MFI) and UspC (PDB ID: 5K2X) were compared to the structural models of Rv2041c and LpqY. Proteins are shown as cartoons with the domain I (N-terminal) and II (C-terminal) colored in green and pink, respectively. B Mapping of the residues that form the substrate-binding pockets according to the crystallographic structures and structural models. C Electrostatic potential of the proteins from the pocket entrance perspective. Blue: positive, red: negative, gray: neutral