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. 2012 May 16;287(28):23819–23829. doi: 10.1074/jbc.M112.371492

FIGURE 5.

FIGURE 5.

The IIAChb*(H89E)-HPr interface. A, stereoview of the interface between the A subunit of IIAChb*(H89E) and HPr with the respective backbones shown as blue and red ribbons, respectively. B, stereoview of the interface between the C subunit of IIAChb*(H89E) and HPr with the respective backbones shown as green and red ribbons, respectively. The dashed lines indicate potential intermolecular hydrogen bonds or salt bridges. The side chain atoms are colored according to atom type (carbon, gray; oxygen, red; nitrogen, blue; sulfur, yellow). Residues of HPr are labeled in italics. C, diagrammatic representation of the intermolecular contacts between the A and C subunits of IIAChb*(H89E) and HPr. Residues involved in side chain-side chain electrostatic interactions are colored in blue (donor) or red (acceptor). The active site residues, H89E of IIAChb*(H89E), and His-15 of HPr are shown in bold letters.