Table 1 Summary of the starting data set, with organisms ordered by number of identified interactions

Escherichia coli K12

Eco

[GenBank: NC_000913]

2118

87

938

Salmonella typhimurium LT2

Stm

[GenBank: NC_003197]

1901

69

832

Salmonella typhi CT18

Sty

[GenBank: NC_003198]

1871

68

812

Shigella flexneri 2a 301

Sfle

[GenBank: NC_004337]

1465

62

718

Escherichia coli O157H7

Ecoo

[GenBank: NC_002655]

862

46

411

Yersinia pestis KIM

Ypes

[GenBank: NC_004088]

740

28

405

Shigella flexneri 2a 2457T

Sfl2

[GenBank: NC_004741]

725

47

367

Shewanella oneidensis MR-1

Sone

[GenBank: NC_004347]

573

20

345

Vibrio cholerae N16961

Vcho

[GenBank: NC_002505, GenBank: NC_002506]

506

22

267

Haemophilus influenzae Rd KW20

Hinf

[GenBank: NC_000907]

350

19

193

Vibrio parahaemolyticus RIMD 2210633

Vpar

[GenBank: NC_004603, GenBank: NC_004605]

305

29

182

Yersinia pseudotuberculosis IP32953

Ypse

[GenBank: NC_006155]

297

26

185

Erwinia carotovora SCRI1043

Ecar

[GenBank: NC_004547]

295

7

18

Yersinia pestis Mediaevails 91001

Ypem

[GenBank: NC_005810]

292

25

183

Photorhabdus luminescens TT01

Plum

[GenBank: NC_005126]

256

23

136

Vibrio vulnificus CMCP6

Vvul

[GenBank: NC_004459, GenBank: NC_004460]

256

26

157

Photobacterium profundum

Ppro

[GenBank: NC_006370, GenBank: NC_006371]

156

21

104

Haemophilus ducreyi 35000HP

Hduc

[GenBank: NC_002940]

106

12

60

Acinetobacter sp ADP1

Aadp

[GenBank: NC_005966]

71

9

41

Pseudomonas aeruginosa PA01

Paer

[GenBank: NC_002516]

42

11

24

Pseudomonas putida KT2440

Pput

[GenBank: NC_002947]

36

9

17

Pseudomonas syringae DC3000

Psyr

[GenBank: NC_004578]

34

11

18

Buchnera aphidicola Bp

Baph

[GenBank: NC_004545]

31

8

22

Legionella pneumophila Paris

Lpnp

[GenBank: NC_006368]

27

8

11

Legionella pneumophila Philadelphia

Lpnh

[GenBank: NC_002942]

20

8

8

Xylella fastidiosa 9a5c

Xfas

[GenBank: NC_002488]

18

6

9

Legionella pneumophila Lens

Lpnl

[GenBank: NC_006369]

16

6

9

Xanthomonas campestris ATC 33913

Xcam

[GenBank: NC_003902]

8

5

6

Methylococcus capsulatus Bath

Mcap

[GenBank: NC_002977]

6

3

3

Xanthomonas axonopodis 306

Xaxo

[GenBank: NC_003919]

6

3

4