Table 1 Description of the passenger proteins expressed in this study

Nm-CsgG

21.75

Involved in curli production, amyloid fibre associated with biofilm formation, host cell adhesion and invasion

44.39

18.39

4.48

32.74

Nm-MtrC

40.33

Belongs to the mtr gene complex, encodes an efflux pump system responsible for Cationic Antimicrobial Peptide Resistance

33.01

20.63

8.98

37.38

Nm-BamE

12.14

Homologue to E. coli BamE

32.8

18.4

8.8

40

Putative Lipoprotein

11.09

Hypothetical lipoprotein

51.22

6.5

8.94

33.33

Ec-Pal

16.68

Belongs to the Tol-Pal system. Plays a role in outer membrane invagination during cell division and outer membrane integrity

41.04

15.03

5.78

38.15

Ec-BamE

9.98

Modulates the conformation of BamA (lateral opening). Key role in the OMP assembly process and cell envelope conformation

25.66

24.78

7.08

42.48

Ec-LptE

18.86

Involved in the insertion of LPS into the OM, facilitating O-antigen translocation. Mostly nested in the β-barrel lumen of LptD

39.41

18.24

4.71

37.65

Ec-LolB

21.04

Essential outer membrane lipoprotein, accepts lipoproteins from LolA, mediates the outer membrane anchoring of lipoproteins

21.26

26.09

6.28

46.38