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Table 2 Calculation of the overall pseudo-first-order rate constant for intracellular consumption of H2O2

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

 

[Protein] (μM)a

Second-order rate constant (M− 1 s− 1)

Pseudo-first-order rate constant (s− 1)

Catalase

0.13

4.6 × 107 b

kcat = 6.0

Tpx1

3.5

1.0 × 107 c

k tpx1  = 35

Overall

  

kcatabolism = 41

  1. aValues extracted from [25]
  2. bValues extracted from [45]
  3. cValues extracted from [8]