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. 2009 Apr 24;284(17):11336–11345. doi: 10.1074/jbc.M900374200

FIGURE 4.

FIGURE 4.

Free energy plot of ATPase activity. ΔH and TΔS values were taken from Table 3. Except when indicated otherwise, ATPase activities were determined in the absence of the uncoupler CCCP. Filled circle, wild-type PS3 ATP synthase; open circle, Δ380LQDI383 deletion mutant; filled square, Δ384IAIL387; open square, Δ388GMDE391; filled triangle, Δ392LSD394; open triangle, Δ381QDIIAIL387; filled diamond, wild-type PS3 ATP synthase measured in the presence of CCCP. The line is an isobar for ΔG = 67.6 kJ/mol, corresponding to the value for the wild-type enzyme (determined in the absence of CCCP).