Table 1 Quantitative heterogeneity analysis of the analyzed hepatic non-CYP abundance data in liver microsomes. FE, RE and df represent fixed effect, random effect and degrees of freedom, respectively. QF and QR are coefficients of heterogeneity of FE and RE models, and H2 and I2 (%) are measures of heterogeneity. *represents the scenario where QF < df leading to an outcome of the RE model similar to the FE model.

From: A repository of protein abundance data of drug metabolizing enzymes and transporters for applications in physiologically based pharmacokinetic (PBPK) modelling and simulation

Enzyme

df

FE model

RE model

QF

H2

I2 (%)

P-value

Statistical Heterogeneity

QR

H2

I2 (%)

P-value

Statistical Heterogeneity

UGT1A1

8

8.14

1.02

1.74

0.42

Low

7.92

0.99

0.00

0.44

None

UGT1A3*

5

2.56

0.51

0.00

0.77

None

2.56

0.51

0.00

0.77

None

UGT1A4

5

24.66

4.93

79.73

0.00016

High

3.23

0.65

0.00

0.66

None

UGT1A6

6

8.53

1.42

29.67

0.20

Low

7.50

1.25

19.97

0.28

Low

UGT1A9*

6

3.99

0.67

0.00

0.68

None

3.99

0.67

0.00

0.68

None

UGT2B4*

3

2.71

0.90

0.00

0.44

None

2.71

0.90

0.00

0.44

None

UGT2B7

6

31.24

5.21

80.79

0.000023

High

6.87

1.14

12.63

0.33

Low

UGT2B10

2

3.89

1.95

48.65

0.14

Medium

3.49

1.75

42.77

0.17

Medium

UGT2B15

5

6.61

1.32

24.33

0.25

Low

5.41

1.08

7.52

0.37

Low

UGT2B17*

3

1.27

0.42

0.00

0.74

None

1.27

0.42

0.00

0.74

None

CES1

1

2.41

2.41

58.45

0.12

Medium

1.00

1.00

0.00

0.32

None

FMO3*

2

1.27

0.63

0.00

0.53

None

1.27

0.63

0.00

0.53

None

FMO5*

1

0.18

0.18

0.00

0.67

None

0.18

0.18

0.00

0.67

None