Figure 6
From: Identification and characterization of a novel β-D-galactosidase that releases pyruvylated galactose

Crystal structure of ORF1119. (A) Overall structure of ORF1119 (E163A mutant) complexed with PvGal (yellow). Chain A is shown in rainbow colors. The side chains of the catalytic residues (nucleophile E347 and acid/base mutant E163A) are shown as sticks and highlighted by red circles. The disordered region is shown as a red dotted line. (B) mFo-DFc electron density map (4.0σ, blue mesh) of PvGal in the complex structure.