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Table 3 Activities of different substrates in human serum and purified PON1 (in micromol substrate hydrolysed per min per mg of protein)

From: Serum paraoxonase 1 (PON1) measurement: an update

Substrate

Serum

Purified enzyme

 

QQ

RR

QQ

RR

Paraoxon

0.001

0.005

0.467

2.1

Phenyl acetate

1.26

1.52

845

720

4-nitrophenyl acetate

0.022

0.04

6.4

7.3

1-naphtyl acetate

0.023

0.032

<0.01

<0.01

  1. Adapted from [29].