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evgA | Response regulator in two-component regulatory system with EvgS; Member of the two-component regulatory system EvgS/EvgA. Regulates the expression of emrKY operon and yfdX. Seems also to control expression of at least one other multidrug efflux operon. (204 aa) | ||||
polB | DNA polymerase II; Thought to be involved in DNA repair and/or mutagenesis. Its processivity is enhanced by the beta sliding clamp (dnaN) and clamp loader. (783 aa) | ||||
dinB | DNA polymerase IV; Poorly processive, error-prone DNA polymerase involved in translesion repair and untargeted mutagenesis. Copies undamaged DNA at stalled replication forks, which arise in vivo from mismatched or misaligned primer ends. These misaligned primers can be extended by Pol IV. Exhibits no 3'-5' exonuclease (proofreading) activity. Overexpression of Pol IV results in increased frameshift mutagenesis. It is required for stationary-phase adaptive mutation, which provides the bacterium with flexibility in dealing with environmental stress, enhancing long- term survival and evol [...] (351 aa) | ||||
acrA | Multidrug efflux system; AcrA-AcrB-AcrZ-TolC is a drug efflux protein complex with broad substrate specificity that uses the proton motive force to export substrates. This subunit may act as an adapter protein that links AcrB and TolC stably together. It is elongated in shape, being long enough to span the periplasm. (397 aa) | ||||
ompT | DLP12 prophage; Protease that can cleave T7 RNA polymerase, ferric enterobactin receptor protein (FEP), antimicrobial peptide protamine and other proteins. This protease has a specificity for paired basic residues. (317 aa) | ||||
cusF | Periplasmic copper- and silver-binding protein; Part of a cation efflux system that mediates resistance to copper and silver. Binds one copper per polypeptide. (110 aa) | ||||
artI | Arginine transporter subunit; Part of the ABC transporter complex ArtPIQMJ involved in arginine transport. (243 aa) | ||||
artP | Arginine ABC transporter ATPase; Part of the ABC transporter complex ArtPIQMJ involved in arginine transport. Probably responsible for energy coupling to the transport system. (242 aa) | ||||
csgC | Curli assembly protein; Plays a role in the extracellular assembly of CsgA into thin aggregative fimbriae (Tafi) fibers. Assembly may also require CsgE. Tafi are thought to be assembled via an extracellular nucleation- precipitation (ENP) pathway, and possibly also via an intracellular non-CsgC-dependent pathway (By similarity). (110 aa) | ||||
dinI | DNA damage-inducible protein I; Involved in SOS regulation. Inhibits RecA by preventing RecA to bind ssDNA. Can displace ssDNA from RecA. (81 aa) | ||||
ycfQ | Repressor for bhsA(ycfR); Represses expression of BhsA/ComC by binding to its promoter region in the absence of copper. (210 aa) | ||||
bhsA | Biofilm, cell surface and signaling protein; Reduces the permeability of the outer membrane to copper. Seems to be involved in the regulation of biofilm formation. May decrease biofilm formation by repressing cell-cell interaction and cell surface interaction; Belongs to the BhsA/McbA family. (85 aa) | ||||
umuD | Translesion error-prone DNA polymerase V subunit; Involved in UV protection and mutation. Poorly processive, error-prone DNA polymerase involved in translesion repair. Essential for induced (or SOS) mutagenesis. Able to replicate DNA across DNA lesions (thymine photodimers and abasic sites, called translesion synthesis) in the presence of activated RecA; efficiency is maximal in the presence of the beta sliding-clamp and clamp-loading complex of DNA polymerase III plus single-stranded binding protein (SSB). RecA and to a lesser extent the beta clamp-complex may target Pol V to replicat [...] (139 aa) | ||||
umuC | Translesion error-prone DNA polymerase V subunit; Involved in UV protection and mutation. Poorly processive, error-prone DNA polymerase involved in translesion repair. Essential for induced (or SOS) mutagenesis. Able to replicate DNA across DNA lesions (thymine photodimers and abasic sites, translesion synthesis) in the presence of activated RecA; efficiency is maximal in the presence of the beta sliding-clamp and clamp-loading complex of DNA polymerase III plus single-stranded binding protein (SSB). RecA and to a lesser extent the beta clamp- complex may target Pol V to replication co [...] (422 aa) | ||||
ompW | Outer membrane protein W; Acts as a receptor for colicin S4. (212 aa) | ||||
tqsA | Pheromone AI-2 transporter; Controls the transport of the quorum-sensing signal AI-2 either by enhancing its secretion or inhibiting its uptake and consequently represses biofilm formation and motility and affects the global gene expression in biofilms. (344 aa) | ||||
spy | Periplasmic ATP-independent protein refolding chaperone, stress-induced; An ATP-independent periplasmic chaperone, decreases protein aggregation and helps protein refolding. Binds substrate over a large region of its convex inner surface. Substrate protein folds while it is bound to chaperone. Increasing Spy flexibility increases its substrate affinity and overall chaperone activity (shown for 3 different substrates). Protects proteins in vitro against tannin inactivation; tannins have antimicrobial activity. Overexpression enhances the stability of otherwise unstable periplasmic prote [...] (161 aa) | ||||
gapA | Glyceraldehyde-3-phosphate dehydrogenase A; Catalyzes the oxidative phosphorylation of glyceraldehyde 3- phosphate (G3P) to 1,3-bisphosphoglycerate (BPG) using the cofactor NAD. The first reaction step involves the formation of a hemiacetal intermediate between G3P and a cysteine residue, and this hemiacetal intermediate is then oxidized to a thioester, with concomitant reduction of NAD to NADH. The reduced NADH is then exchanged with the second NAD, and the thioester is attacked by a nucleophilic inorganic phosphate to produce BPG. (331 aa) | ||||
mdtA | Multidrug efflux system, subunit A; The MdtABC tripartite complex confers resistance against novobiocin and deoxycholate. MdtABC requires TolC for its function. Belongs to the membrane fusion protein (MFP) (TC 8.A.1) family. (415 aa) | ||||
lrhA | Transcriptional repressor of flagellar, motility and chemotaxis genes; Not known, does not seem to act on the proton translocating NADH dehydrogenase genes (nuoA-N) which are part of the lrhA operon. (312 aa) | ||||
acrD | Aminoglycoside/multidrug efflux system; Participates in the efflux of aminoglycosides. Confers resistance to a variety of these substances. Belongs to the resistance-nodulation-cell division (RND) (TC 2.A.6) family. (1037 aa) | ||||
yfgF | cyclic-di-GMP phosphodiesterase, anaerobic; Phosphodiesterase (PDE) that catalyzes the hydrolysis of cyclic-di-GMP (c-di-GMP) to 5'-pGpG. Truncated proteins consisting of the GGDEF/EAL domains (residues 319-747) or of the EAL domain alone (481-747) have c-di-GMP phosphodiesterase activity. They do not have diguanylate cyclase activity. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. (747 aa) | ||||
recN | Recombination and repair protein; May be involved in recombinational repair of damaged DNA; Belongs to the RecN family. (553 aa) | ||||
recA | DNA recombination and repair protein; Required for homologous recombination and the bypass of mutagenic DNA lesions by the SOS response. Catalyzes ATP-driven homologous pairing and strand exchange of DNA molecules necessary for DNA recombinational repair. Catalyzes the hydrolysis of ATP in the presence of single-stranded DNA, the ATP-dependent uptake of single- stranded DNA by duplex DNA, and the ATP-dependent hybridization of homologous single-stranded DNAs. The SOS response controls an apoptotic-like death (ALD) induced (in the absence of the mazE-mazF toxin-antitoxin module) in resp [...] (353 aa) | ||||
hdeA | Stress response protein acid-resistance protein; Required for optimal acid stress protection. Exhibits a chaperone-like activity only at pH below 3 by suppressing non- specifically the aggregation of denaturated periplasmic proteins. Important for survival of enteric bacteria in the acidic environment of the host stomach. Also promotes the solubilization at neutral pH of proteins that had aggregated in their presence at acidic pHs. May cooperate with other periplasmic chaperones such as DegP and SurA. (110 aa) | ||||
mdtE | Anaerobic multidrug efflux transporter, ArcA-regulated; Part of the tripartite efflux system MdtEF-TolC, which confers resistance to compounds such as rhodamine 6G, erythromycin, doxorubicin, ethidium bromide, TPP, SDS, deoxycholate, crystal violet and benzalkonium; Belongs to the membrane fusion protein (MFP) (TC 8.A.1) family. (385 aa) | ||||
ibpB | Heat shock chaperone; Associates with aggregated proteins, together with IbpA, to stabilize and protect them from irreversible denaturation and extensive proteolysis during heat shock and oxidative stress. Aggregated proteins bound to the IbpAB complex are more efficiently refolded and reactivated by the ATP-dependent chaperone systems ClpB and DnaK/DnaJ/GrpE. Its activity is ATP-independent. (142 aa) | ||||
ibpA | Heat shock chaperone; Associates with aggregated proteins, together with IbpB, to stabilize and protect them from irreversible denaturation and extensive proteolysis during heat shock and oxidative stress. Aggregated proteins bound to the IbpAB complex are more efficiently refolded and reactivated by the ATP-dependent chaperone systems ClpB and DnaK/DnaJ/GrpE. Its activity is ATP-independent. (137 aa) | ||||
uvrD | DNA-dependent ATPase I and helicase II; A helicase with DNA-dependent ATPase activity. Unwinds DNA duplexes with 3' to 5' polarity with respect to the bound strand. Initiates unwinding more efficiently from a nicked substrate than ds duplex DNA. Involved in the post-incision events of nucleotide excision repair and methyl-directed mismatch repair, and probably also in repair of alkylated DNA (Probable). (720 aa) | ||||
lexA | Transcriptional repressor of SOS regulon; Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single- stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair. Implicated in hydroxy radical-mediated cell death induced by hydroxyurea treatment .The SOS response controls an apoptotic-like death (ALD) induced (in the absence [...] (202 aa) | ||||
fumB | Anaerobic class I fumarate hydratase (fumarase B); Catalyzes the reversible hydration of fumarate to (S)-malate. Functions in the generation of fumarate for use as an anaerobic electron acceptor. To a lesser extent, also displays D-tartrate dehydratase activity, but is not able to convert (R)-malate, L-tartrate or meso-tartrate. Is required for anaerobic growth on D-tartrate. Belongs to the class-I fumarase family. (548 aa) | ||||
frdB | Fumarate reductase (anaerobic), Fe-S subunit; Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth. (244 aa) |