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Table 3 Distribution of Streptomyces transporters in each TC class and subclass

From: Genomic data mining reveals a rich repertoire of transport proteins in Streptomyces

Class

Subclass

SACTE

SAV

SBI

SCAB

SCAT

SCO

SFLA

SGR

SHJG

STRVI

SVEN

1: Channels/Proes

22

31

29

34

22

29

26

28

26

31

30

 

1.A: α-Type Channels

18

24

20

25

15

22

21

20

21

24

21

 

1.B: β-Barrel Porins

3

6

7

8

6

6

4

5

4

6

6

 

1.C: Pore-Forming Toxins (Proteins and Peptides)

1

1

1

1

1

1

1

3

1

1

3

 

1.I: Membrane-bounded channels

0

0

1

0

0

0

0

0

0

0

0

2: Electrochemical Potential-driven Transporters

212

266

330

251

239

274

217

242

305

271

269

 

2.A: Porters (uniporters, symporters, antiporters)

212

266

328

251

239

274

217

242

305

271

269

 

2.C: Ion-gradient-driven energizers

0

0

2

0

0

0

0

0

0

0

0

3: Primary Active Transporters

500

544

705

553

365

552

498

555

489

528

494

 

3.A: P-P-bond-hydrolysis-driven transporters

455

492

656

505

304

497

451

508

433

476

449

 

3.B: Decarboxylation-driven transporters

6

6

5

6

10

7

6

6

6

4

6

 

3.D: Oxidoreduction-driven transporters

39

46

43

42

51

48

41

41

50

47

39

 

3.E: Light absorption-driven transporters

0

0

1

0

0

0

0

0

0

1

0

4: Group Translocators

27

46

62

54

35

30

36

40

46

37

43

 

4.A: Phosphotransfer-driven group translocators

5

7

4

5

2

8

8

6

5

7

6

 

4.B: Nicotinamide ribonucleoside uptake transporters

1

1

0

1

1

1

3

3

1

0

3

 

4.C: Acyl CoA ligase-coupled transporters

21

38

58

48

32

21

25

31

40

30

34

5: Transmembrane Electron Carriers

12

13

21

19

18

26

15

13

20

16

16

 

5.A: Transmembrane 2-electron transfer carriers

12

12

21

18

17

26

14

13

19

15

16

 

5.B: Transmembrane 1-electron transfer carriers

0

1

0

1

1

0

1

0

1

1

0

8: Accessory Factors Involved in Transport

4

4

5

6

5

5

5

6

6

4

4

 

8.A: Auxiliary transport proteins

4

4

5

6

5

5

5

6

6

4

4

9: Incompletely Characterized Transport Systems

60

63

74

67

75

67

68

66

63

69

55

 

9.A: Recognized transporters of unknown biochemical mechanism

27

25

44

27

33

31

32

35

27

33

25

 

9.B: Putative transport proteins

33

38

30

40

42

36

35

31

36

36

30

 

9.C: Functionally characterized transporters lacking identified sequences

0

0

0

0

0

0

1

0

0

0

0

N/A

 

32

22

32

37

2

7

23

25

44

33

24

Total

 

869

989

1258

1021

761

990

888

975

999

989

935