Figure 6.
Fig. 6. Schematic diagram of the hydrogen bonding of
4-OSA (A) and 4,7-DOSA (B) with E. coli PBGS. The carbon atoms
of 4-OSA and 4,7-DOSA are numbered. Water molecules are
represented by single oxygen atoms as O. Dashed lines indicate
potential hydrogen bonds using a heteroatom distance of 3.2 Å.
Hydrogen bonds are depicted for subunits A. In subunit B the
Gly213(O)-Arg204(N), the 4-OSA(O)-Arg204(NE), and the
4-OSA(O)-water(connected to Gln219) distances are 3.5-3.8
Å. Dotted lines indicate the Zn2+ ligand bonds, which are
each ~2.4 Å.
3.2 Å.
Hydrogen bonds are depicted for subunits A. In subunit B the
Gly213(O)-Arg204(N), the 4-OSA(O)-Arg204(NE), and the
4-OSA(O)-water(connected to Gln219) distances are 3.5-3.8
Å. Dotted lines indicate the Zn2+ ligand bonds, which are
each ~2.4 Å.