Influence of pH on the kinetic parameters of SDHWT and its
substituted forms. A, plot of
Km(sulfite)(app) for SDHWT and
sulfite speciation versus pH; B, plot of
Km(sulfite)(app) versus pH for SDHR55M
(×), SDHY236F (•), and SDHH57A (⋄);
C, plot of kcat(app) versus pH for
SDHWT; D, plot of kcat(app)
versus pH for SDHR55M (×), SDHY236F
(•), and SDHH57A (⋄); E, plot of
kcat/Km(sulfite)
versus pH SDHWT; F, plot of
kcat/Km(sulfite)
versus pH for SDHR55M (×), SDHY236F
(•), and SDHH57A (⋄).