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Fig. 6 | BMC Biology

Fig. 6

From: Using in vivo oxidation status of one- and two-component redox relays to determine H2O2 levels linked to signaling and toxicity

Fig. 6

Theoretical temporal gradients of H2O2 in response to 0.1 (filled triangles) and 0.5 mM (open circles) H2O2. Gradients are estimated according to Eq. 4. P s of 0.096 ± 0.034 μm s− 1 (n = 17) was determined in this work from experiments with OxyR oxidation, giving kperm = 0.141 ± 0.051 s− 1 (n = 17). kcatabolism was estimated from the reduction levels of Tpx1 and catalase and rate constants of 1 × 107 M− 1 s− 1 and 4.6 × 107 M− 1 s− 1, respectively. When Tpx1 and catalase are 100% active in eliminating H2O2, kcatabolism = 41 s− 1, as indicated in Table 2

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