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Table 1 Number of amino acids present in loops and segments joining transmembrane (TM) regions and canonical DH domains in NOX4/NOX4-art of the different taxonomic groups analyzed. # - Number of species in each taxonomic group

From: Evolutionary origin and function of NOX4-art, an arthropod specific NADPH oxidase

Group

#

loop A

loop B

loop C

loop D

loop E

TM6

-

FAD1-2

-

NADPH1

-

NADPH2

-

NADPH3

-

NADPH4

C-terminus

Cnidaria

2

16

26-27

25

13

41-73

 

46

 

49-69

 

19-20

 

49

 

20

 

28

Arachnida

5

16

27

25

13

45-76

 

46-51

 

43-57

 

15-16

 

51-52

 

20

 

27-29

Crustacea

6

16

12-33

15/25

13

12-40

 

27-46

 

36-58

 

7-11

 

48-52

 

20

 

27

Hexapodaa

62

16

21

25

13

11-69

 

46-52

 

36-52b

 

14-17

 

51-52c

 

20

 

27-30

Echinodermata

1

16

25

25

13

76

 

204

 

45

 

19

 

49

 

20

 

28

Urochordata

1

16

26

25

13

135

 

47

 

109

 

18

 

48

 

22

 

27

Cephalochordata

1

0

26

25

13

80-82

 

46

 

52-75

 

16

 

48

 

20

 

27

Vertebrates

6

16

26

25

13

48-75

 

46

 

48

 

15-16

 

48-49

 

20

 

28

  1. aAt least in 80% of the species analyzed; bvaries among orders; cmuch bigger in Lepidoptera (median = 102.5)