Tol-pal system protein; Mediates coordination of peptidoglycan synthesis and outer membrane constriction during cell division; Belongs to the CpoB family.

Protein TolQ; Part of the Tol-Pal system, which plays a role in outer membrane invagination during cell division and is important for maintaining outer membrane integrity. Required, with TolR, for the proton motive force-dependent activation of TolA and for TolA-Pal interaction.

Protein TolR; Part of the Tol-Pal system, which plays a role in outer membrane invagination during cell division and is important for maintaining outer membrane integrity. Required, with TolQ, for the proton motive force-dependent activation of TolA and for TolA-Pal interaction.

Hypothetical protein; OmpA is believed to be a porin, involved in diffusion of nonspecific small solutes across the outer membrane. It is the most abundant integral protein of the outer membrane of E. coli, and it is known to play a role as a phage receptor, a mediator of F-factor dependent conjugation, and in maintaining the structural shape of the outer membrane; 3a; II*; G; d; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the outer membrane OOP (TC 1.B.6) superfamily.

Outer membrane protein assembly factor BamA; Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Constitutes, with BamD, the core component of the assembly machinery.

Outer-membrane lipoprotein carrier protein LolA; Participates in the translocation of lipoproteins from the inner membrane to the outer membrane. Only forms a complex with a lipoprotein if the residue after the N-terminal Cys is not an aspartate (The Asp acts as a targeting signal to indicate that the lipoprotein should stay in the inner membrane).

Outer membrane-specific lipoprotein transporter subunit LolE; Part of the ATP-dependent transport system LolCDE; responsible for the localization of lipoproteins to the periplasmic surface of the outer membrane; Derived by automated computational analysis using gene prediction method: Protein Homology.

Molecular chaperone; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the skp family.

30S ribosomal protein S12; Interacts with and stabilizes bases of the 16S rRNA that are involved in tRNA selection in the A site and with the mRNA backbone. Located at the interface of the 30S and 50S subunits, it traverses the body of the 30S subunit contacting proteins on the other side and probably holding the rRNA structure together. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit.