Peptidyl-prolyl cis-trans isomerase (ppiase); Chaperone involved in the correct folding and assembly of outer membrane proteins, such as OmpA, OmpF and LamB. Recognizes specific patterns of aromatic residues and the orientation of their side chains, which are found more frequently in integral outer membrane proteins. May act in both early periplasmic and late outer membrane- associated steps of protein maturation. Essential for the survival of E.coli in stationary phase. Required for pilus biogenesis

16S rRNA m(6)A1518, m(6)A1519 dimethyltransferase, SAM-dependent; Specifically dimethylates two adjacent adenosines (A1518 and A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA in the 30S particle. May play a critical role in biogenesis of 30S subunits. Has also a DNA glycosylase/AP lyase activity that removes C mispaired with oxidized T from DNA, and may play a role in protection of DNA against oxidative stress

4-hydroxy-L-threonine phosphate dehydrogenase, NAD-dependent; Catalyzes the NAD(P)-dependent oxidation of 4-(phosphooxy)-L- threonine (HTP) into 2-amino-3-oxo-4-(phosphooxy)butyric acid which spontaneously decarboxylates to form 3-amino-2-oxopropyl phosphate (AHAP)

Lps assembly om complex lptde, beta-barrel component; Together with LptE, is involved in the assembly of lipopolysaccharide (LPS) at the surface of the outer membrane. Contributes to n-hexane resistance

Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis

Glutathione-regulated potassium-efflux system ancillary protein kefc; Pore-forming subunit of a potassium efflux system that confers protection against electrophiles. Catalyzes K(+)/H(+) antiport. Can also export rubidium, lithium and sodium

Fmn hydrolase / 5-amino-6-(5-phospho-d-ribitylamino)uracil phosphatase; Catalyzes the dephosphorylation of 5-amino-6-(5-phospho-D- ribitylamino)uracil, and thus could be involved in the riboflavin biosynthesis pathway . Is also able to dephosphorylate flavin mononucleotide (FMN) and other phosphoric acid esters . YigB is important for the formation of dormant persister cells

Fused trna nucleotidyltransferase/2',3'-cyclic phosphodiesterase/2' nucleotidase and phosphatase; Catalyzes the addition and repair of the essential 3'- terminal CCA sequence in tRNAs without using a nucleic acid template. Adds these three nucleotides in the order of C, C, and A to the tRNA nucleotide-73, using CTP and ATP as substrates and producing inorganic pyrophosphate. Also shows highest phosphatase activity in the presence of Ni(2+) and hydrolyzes pyrophosphate, canonical 5'-nucleoside tri- and diphosphates, NADP, and 2'-AMP with the production of Pi. Displays a metal-independen [...]

Membrane-anchored dnak co-chaperone, dna-binding protein; Regulatory DnaK co-chaperone. Direct interaction between DnaK and DjlA is needed for the induction of the wcaABCDE operon, involved in the synthesis of a colanic acid polysaccharide capsule, possibly through activation of the RcsB/RcsC phosphotransfer signaling pathway. The colanic acid capsule may help the bacterium survive conditions outside the host