Subunits interactions induced by activators

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Figure 13-1 An enzymesubstrate complex
illustrating both the geometric and the physical
complementarity between enzymes and substrates.
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Figure 14-4a Transition state diagrams. (a) For
the H H2 reaction. This is a section taken
along the acd line in Fig. 14-3.
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Figure 14-4b Transition state diagrams. (b) For a
spontaneous reaction, that is, one in which the
free energy decreases.
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Figure 14-5 Transition state diagram for the
two-step overall reaction A I P.
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Figure 14-6 The effect of a catalyst on the
transition state diagram of a reaction.
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Figure 15-1c Mechanisms of ketoenol
tautomerization.(c) General base catalyzed.
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Figure 15-4 The decarboxylation of acetoacetate.
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Figure 15-5b X-Ray structures of human carbonic
anhydrase. (b) The active site showing the proton
shuttle.
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Figure 15-6 The geometry of an SN2 reaction.
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Figure 15-25a Transition state stabilization in
the serine proteases. (a) The Michaelis complex.
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Figure 15-25b Transition state stabilization in
the serine proteases. (b) The tetrahedral
intermediate.
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