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napA napA dnaK dnaK dnaJ dnaJ perR perR rclR rclR lacZ lacZ htpG htpG ompF ompF ssuB ssuB marA marA nemR nemR osmE osmE srmB srmB clpB clpB grpE grpE gshB gshB yqgF yqgF arsR arsR recG recG cbrA cbrA cbrB cbrB rhlB rhlB metR metR hslU hslU hslV hslV oxyR oxyR groS groS groL groL hypT hypT
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second shell of interactors
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proteins of unknown 3D structure
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napANitrate reductase, periplasmic, large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite; Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily. (828 aa)
dnaKChaperone Hsp70, with co-chaperone DnaJ; Plays an essential role in the initiation of phage lambda DNA replication, where it acts in an ATP-dependent fashion with the DnaJ protein to release lambda O and P proteins from the preprimosomal complex. DnaK is also involved in chromosomal DNA replication, possibly through an analogous interaction with the DnaA protein. Also participates actively in the response to hyperosmotic shock. (638 aa)
dnaJChaperone Hsp40, DnaK co-chaperone; Interacts with DnaK and GrpE to disassemble a protein complex at the origins of replication of phage lambda and several plasmids. Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK t [...] (376 aa)
perRCP4-6 prophage; Apparent regulatory gene involved in peroxide resistance in stationary phase; Belongs to the LysR transcriptional regulatory family. (297 aa)
rclRReactive chlorine species (RCS)-specific activator of the rcl genes; Involved in reactive chlorine species (RCS) stress resistance. Upregulates, in response to hypochlorous acid (HOCl), the expression of three genes essential for survival of RCS stress (rclA, rclB and rclC) and its own expression. (284 aa)
lacZbeta-D-galactosidase; Protein involved in carbohydrate catabolic process; Belongs to the glycosyl hydrolase 2 family. (1024 aa)
htpGProtein refolding molecular co-chaperone Hsp90, Hsp70-dependent; Molecular chaperone. Has ATPase activity. (624 aa)
ompFOuter membrane porin 1a (Ia;b;F); Forms pores that allow passive diffusion of small molecules across the outer membrane. (Microbial infection) A mixed OmpC-OmpF heterotrimer is the outer membrane receptor for toxin CdiA-EC536; polymorphisms in extracellular loops 4 and 5 of OmpC confer susceptibility to CdiA- EC536-mediated toxicity; Belongs to the Gram-negative porin family. (362 aa)
ssuBAliphatic sulfonate ABC transporter ATPase; Part of the ABC transporter complex SsuABC involved in aliphatic sulfonates import. Responsible for energy coupling to the transport system (Probable). (255 aa)
marAMultiple antibiotic resistance transcriptional regulator; May be a transcriptional activator of genes involved in the multiple antibiotic resistance (Mar) phenotype. It can also activate genes such as sodA, zwf and micF. (127 aa)
nemRTranscriptional repressor for the nemRA-gloA operon, quinone-, glyoxal-, and HOCl-activated; Involved in response to both electrophiles and reactive chlorine species (RCS). Represses the transcription of the nemRA-gloA operon by binding to the NemR box. May sense electrophiles, primarily quinones and glyoxals, as redox signals and regulate the redox state by modulating the expression of nemA and gloA. Also uses the oxidation status of HOCl-sensitive cysteine residues to respond to bleach and related RCS. Involved in response to methylglyoxal. (199 aa)
osmEOsmotically-inducible lipoprotein; Activator of ntrL gene; Protein involved in transcription activator activity, transcription and response to osmotic stress. (112 aa)
srmBATP-dependent RNA helicase; DEAD-box RNA helicase involved in the assembly of the 50S ribosomal subunit at low temperature. Exhibits RNA-stimulated ATP hydrolysis and RNA unwinding activity. Acts before DeaD. Belongs to the DEAD box helicase family. SrmB subfamily. (444 aa)
clpBProtein disaggregation chaperone; Part of a stress-induced multi-chaperone system, it is involved in the recovery of the cell from heat-induced damage, in cooperation with DnaK, DnaJ and GrpE. Acts before DnaK, in the processing of protein aggregates. Protein binding stimulates the ATPase activity; ATP hydrolysis unfolds the denatured protein aggregates, which probably helps expose new hydrophobic binding sites on the surface of ClpB-bound aggregates, contributing to the solubilization and refolding of denatured protein aggregates by DnaK. (857 aa)
grpEHeat shock protein; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-depen [...] (197 aa)
gshBProtein involved in glutathione biosynthetic process. (316 aa)
yqgFPutative Holliday junction resolvase; Involved in the processing of the 5'-end of pre-16S rRNA during 70S ribosome maturation (processing does not occur on total cellular RNA off the ribosome); may be a nuclease. A temperature-sensitive yqgF mutant no longer grows when Rho or NusA are overproduced, and has reduced transcription of genes encoded downstream of Rho terminators; transcription increases again in the presence of the Rho inhibitor bicylomycin. (138 aa)
arsRArsenical resistance operon transcriptional repressor; Transcriptional repressor for the arsEFG operon. ArsE is a trans-acting regulatory protein which controls its own expression. The repressive effect of ArsE is alleviated by oxyions of +III oxidation state of arsenic, antimony, and bismuth, as well as arsenate (As(V)) (By similarity). (117 aa)
recGATP-dependent DNA helicase; Plays a critical role in recombination and DNA repair. Helps process Holliday junction intermediates to mature products by catalyzing branch migration. Has a DNA unwinding activity characteristic of a DNA helicase with 3'- to 5'- polarity. Unwinds branched duplex DNA (Y-DNA). Has a role in constitutive stable DNA replication (cSDR) and R-loop formation. Is genetically synergistic to RadA and RuvABC. Belongs to the helicase family. RecG subfamily. (693 aa)
cbrAColicin M resistance protein; FAD-binding protein, putative oxidoreductase; Belongs to the CbrA family. (354 aa)
cbrBPRK09823 family inner membrane protein, creBC regulon. (155 aa)
rhlBATP-dependent RNA helicase; DEAD-box RNA helicase involved in RNA degradation. Has RNA- dependent ATPase activity and unwinds double-stranded RNA. Belongs to the DEAD box helicase family. RhlB subfamily. (421 aa)
metRMethionine biosynthesis regulon transcriptional regulator; Control of the last step in methionine biosynthesis; MetR is a positive activator of the metA, metE and metH genes. MetR is also a negative regulator of its own expression. Binds homocysteine as an inducer; Belongs to the LysR transcriptional regulatory family. (317 aa)
hslUMolecular chaperone and ATPase component of HslUV protease; ATPase subunit of a proteasome-like degradation complex; this subunit has chaperone activity. The binding of ATP and its subsequent hydrolysis by HslU are essential for unfolding of protein substrates subsequently hydrolyzed by HslV. HslU recognizes the N-terminal part of its protein substrates and unfolds these before they are guided to HslV for hydrolysis. (443 aa)
hslVPeptidase component of the HslUV protease; Protease subunit of a proteasome-like degradation complex believed to be a general protein degrading machinery. The complex has been shown to be involved in the specific degradation of heat shock induced transcription factors such as RpoH and SulA. In addition, small hydrophobic peptides are also hydrolyzed by HslV. HslV has weak protease activity even in the absence of HslU, but this activity is induced more than 100-fold in the presence of HslU. HslU recognizes protein substrates and unfolds these before guiding them to HslV for hydrolysis. [...] (176 aa)
oxyROxidative and nitrosative stress transcriptional regulator; Hydrogen peroxide sensor. Activates the expression of a regulon of hydrogen peroxide-inducible genes such as katG, gor, ahpC, ahpF, oxyS (a regulatory RNA), dps, fur and grxA. OxyR expression is negatively autoregulated by binding to a 43 bp region upstream of its own coding sequence. OxyR is inactivated by reduction of its essential disulfide bond by the product of GrxA, itself positively regulated by OxyR. Has also a positive regulatory effect on the production of surface proteins that control the colony morphology and auto- [...] (305 aa)
groSCpn10 chaperonin GroES, small subunit of GroESL; Binds to Cpn60 in the presence of Mg-ATP and suppresses the ATPase activity of the latter; Belongs to the GroES chaperonin family. (97 aa)
groLCpn60 chaperonin GroEL, large subunit of GroESL; Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions. (548 aa)
hypTHypochlorite-responsive transcription factor; Protects cells from HOCl (hypochlorite) stress but not peroxide or diamide stress. Decreases the intracellular load of reactive oxygen species by up-regulating genes involved in methionine and cysteine biosynthesis and down-regulating Fur-regulated genes involved in iron acquisition. Has also been suggested to down-regulate expression of the flagellar regulon, decreasing motility, but this activity was not confirmed in a second study. Belongs to the LysR transcriptional regulatory family. (303 aa)
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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