Table 2 Total counts of NADPH oxidise (NOX) enzymes identified from genome sequences of 19 metazoan species. Main numbers indicate the total number of unique sequences identified, including isoforms, splice variants and fragmented gene sequences. Superscript numbers indicate the number of additional identical protein sequences (exact sequence variants)

Amphimedon queenslandica

Porifera

6

1

3 (1)

1

Xestospongia bergquistia

Porifera

3

1

(1)

1

Tethya wilhelma

Porifera

4

2 (1)

1

Ephydatia muelleri

Porifera

5

1

(1)

3

Oscarella carmela

Porifera

4

1

1

2

Sycon ciliatum

Porifera

6

2

4

Mnemiopsis leidyi

Ctenophora

1

1

Nematostella vectensis

Cnidaria

3

2

1

Capitella teleta

Annelida

5

1

2

2

Lingula anatina

Brachipoda

12

1

1

6

4

Drosophila melanogaster

Arthropoda

2

1

1

Caenorhabditis elegans

Nematoda

2

2

Strongylocentrotus purpuratus

Echinodermata

6

1

1

3

1

Acanthaster planci

Echinodermata

8

1

6

1

Branchiostoma floridae

Chordata

6

1

1

1

3

Ciona intestinalis

Chordata

8

2

1

5

Danio rerio

Chordata

7

1

1

1

1

3

Xenopus tropicalis

Chordata

9

1

1¹

3

1

2

Homo sapiens

Chordata

25

3

1

1

7²

6

4¹