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Figure 4.
Figure 4. Detailed diagram illustrating AlF[3] binding in
the active site region of the ADP-Mg2+-AlF[3] E. coli PCK
quaternary complex. Note that the fluorine atoms interact
primarily with basic residues or Mg2+. The aluminum atom is
close to an oxygen atom of the b-phosphoryl group of ATP. Mg2+
is the light blue sphere, the aluminum atom is colored pink, the
fluorine atoms are colored green. (a) PCK-ADP-AlF[3]-Mg2+
complex (complex I). (b) PCK-ADP-AlF[3]-Mg2+-pyruvate complex
(complex II).
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