78 The Cell Language Theory: Connecting Mind and Matterb2861 The Cell Language Theory: Connecting Mind and Matter “6x9”Figure 3.13 The pre-fit mechanism of the rotary catalysis of F 1 –ATPase based on the
GFCP or the PSFP. O = open conformation; C = closed conformation whose shape is
complementary to that of ADP or (ADP + Pi); C′ = closed conformation whose shape is
complementary to that of ATP; E = empty, i.e., no ligand; T = ATP; D = ADP or (ADP + Pi).
The filled triangle stands for the a 3 b 3 stator ring (also called the F 1 –ATPase stator ring) that
catalyzes the hydrolysis of ATP to ADP and inorganic phosphate, Pi. Although experimen-
tally only the O conformation could be detected by the high-speed AFM [85], it is predicted
here that there will be two other conformations found, designated as C and C’ in this figure,
that circulate counterclockwise around the F 1 –ATPase stator ring in phase with the O confor-
mation. The solid arrows (see Steps 1–3) indicates the direction of conformational transitions
occurring in the presence of excess ATP relative to ADP in the medium, thus hydrolyzing
ATP to ADP and Pi, while the dotted arrows (see Steps 1–3) indicate the direction of confor-
mational wave propagation in the presence of excess ADP and Pi relative to ATP, thus syn-
thesizing ATP from ADP and Pi, following the Le Chatelier principle [171], a principle of
equilibrium processes, inapplicable to oxphos which is a far-from- equilibrium process. See
active vs. passive ATP synthesis discussed in Section 3.3.8. Reproduced from [25, p. 216].(O/C/C′) (C′/O/C) (C/C′/O)1-12-23-3O(E) C′(T) C(D)C(D) C′(T) O(E) C(D) C′(T) O(E)former is a slower process than the latter. For example, when that F 1
stator undergoes the transition from States 1 to 3 in Figure 3.14, the
conformations of the b-subunits change from (O/C/C′) to (C′/O/C)
and the ligand system changes from (E/D/T) to (T/E/D). But, because
the conformation changes are slower than the ligand binding events,
the States 1–3 transition cannot occur unless and until State 1 under-
goes a transition to an intermediate state, State 2, by first changing
the conformational state from (O/C/C′) to (OC′/CO/C′C) which is a
high-energy state as indicated by the superscript double dagger, ‡,
and leads to the transition of the ligand binding state from (E/D/T) tob2861_Ch-03.indd 78 17-10-2017 11:46:19 AM