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chaC chaC pspF pspF tyrR tyrR ddpF ddpF ddpX ddpX tus tus nth nth astC astC ydjG ydjG yeaE yeaE cspC cspC yobF yobF fliA fliA atoC atoC yfcZ yfcZ fadL fadL acrD acrD hyfA hyfA hyfR hyfR glnB glnB glrR glrR rpoE rpoE norR norR fhlA fhlA rpoS rpoS rpoD rpoD rpoN rpoN rpoA rpoA rtcR rtcR rpoH rpoH mutM mutM rpoZ rpoZ emrD emrD aslB aslB glnG glnG glnL glnL glnA glnA rpoB rpoB rpoC rpoC zraR zraR actP actP yjcS yjcS fecI fecI thiQ thiQ sgrT sgrT sgrR sgrR setA setA prpR prpR potF potF potG potG potI potI ptsG ptsG dhaR dhaR
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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a 3D structure is known or predicted
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experimentally determined
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chaCCation transport regulator; Catalyzes the cleavage of glutathione into 5-oxo-L-proline and a Cys-Gly dipeptide. Acts specifically on glutathione, but not on other gamma-glutamyl peptides. (231 aa)
pspFPsp operon transcriptional activator; Transcriptional activator for the phage shock protein (psp) operon (pspABCDE) and pspG gene. (325 aa)
tyrRAromatic amino acid biosynthesis and transport regulon transcriptional regulator; Involved in transcriptional regulation of aromatic amino acid biosynthesis and transport. Modulates the expression of at least 8 unlinked operons. Seven of these operons are regulated in response to changes in the concentration of the three aromatic amino acids (phenylalanine, tyrosine and tryptophan). These amino acids are suggested to act as co-effectors which bind to the TyrR protein to form an active regulatory protein. In most cases TyrR causes negative regulation, but positive effects on the tyrP ge [...] (513 aa)
ddpFD,D-dipeptide ABC transporter ATPase; Part of the ABC transporter complex DdpABCDF, which is probably involved in D,D-dipeptide transport. Probably responsible for energy coupling to the transport system. (308 aa)
ddpXD-ala-D-ala dipeptidase, Zn-dependent; Catalyzes hydrolysis of the D-alanyl-D-alanine dipeptide. May have a role in cell-wall turnover. (193 aa)
tusInhibitor of replication at Ter, DNA-binding protein; Trans-acting protein required for termination of DNA replication. Binds to DNA replication terminator sequences (terA to terF) to prevent the passage of replication forks. The termination efficiency will be affected by the affinity of this protein for the terminator sequence. (309 aa)
nthDNA glycosylase and apyrimidinic (AP) lyase (endonuclease III); DNA repair enzyme that has both DNA N-glycosylase activity and AP-lyase activity. The DNA N-glycosylase activity releases various damaged pyrimidines from DNA by cleaving the N-glycosidic bond, leaving an AP (apurinic/apyrimidinic) site. The AP-lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'- phosphate. (211 aa)
astCSuccinylornithine transaminase, PLP-dependent; Catalyzes the transamination of N(2)-succinylornithine and alpha-ketoglutarate into N(2)-succinylglutamate semialdehyde and glutamate. Can also act as an acetylornithine aminotransferase. Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family. AstC subfamily. (406 aa)
ydjGMethylglyoxal reductase, NADH-dependent; Catalyzes the NADH-dependent reduction of methylglyoxal (2- oxopropanal) in vitro. It is not known if this activity has physiological significance. Cannot use NADPH as a cosubstrate. Seems to play some role in intestinal colonization. (326 aa)
yeaEAldo-keto reductase, methylglyoxal to acetol, NADPH-dependent; Putative an aldehyde reductase. (284 aa)
cspCStress protein, member of the CspA-family; Cold shock protein; Protein involved in transcription activator activity, transcription and response to temperature stimulus. (69 aa)
yobFDUF2527 family heat-induced protein. (47 aa)
fliARNA polymerase, sigma 28 (sigma F) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor controls the expression of flagella-related genes. (239 aa)
atoCRegulatory protein AtoC; Member of the two-component regulatory system AtoS/AtoC. In the presence of acetoacetate, AtoS/AtoC stimulates the expression of the atoDAEB operon, leading to short chain fatty acid catabolism and activation of the poly-(R)-3-hydroxybutyrate (cPHB) biosynthetic pathway. Also induces the operon in response to spermidine. Involved in the regulation of motility and chemotaxis, via transcriptional induction of the flagellar regulon. AtoC acts by binding directly to the promoter region of the target genes. In addition to its role as a transcriptional regulator, fun [...] (461 aa)
yfcZUPF0381 family protein; Belongs to the UPF0381 family. (94 aa)
fadLLong-chain fatty acid outer membrane transporter; Involved in translocation of long-chain fatty acids across the outer membrane. It is a receptor for the bacteriophage T2. FadL may form a specific channel; Belongs to the OmpP1/FadL family. (446 aa)
acrDAminoglycoside/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)
hyfAHydrogenase 4, 4Fe-4S subunit; Probable electron transfer protein for hydrogenase 4. (205 aa)
hyfRHydrogenase-4 transcriptional activator; A transcriptional activator of its own operon; when overexpressed operon expression is strongly enhanced by low pH (under pH 6.0), strongly inhibited by O(2) but only weakly stimulated by fumarate. Expression in situ is very weak. (670 aa)
glnBRegulatory protein P-II for glutamine synthetase; P-II indirectly controls the transcription of the glutamine synthetase gene (glnA). P-II prevents NR-II-catalyzed conversion of NR- I to NR-I-phosphate, the transcriptional activator of GlnA. When P-II is uridylylated to P-II-UMP, these events are reversed. When the ratio of Gln to 2-ketoglutarate decreases, P-II is uridylylated to P-II-UMP, which causes the deadenylation of glutamine synthetase by GlnE, so activating the enzyme; Belongs to the P(II) protein family. (112 aa)
glrRResponse regulator regulating glmY sRNA in two-component system with sensor protein GlrK; Member of the two-component regulatory system GlrR/GlrK that up-regulates transcription of the glmY sRNA when cells enter the stationary growth phase. Regulates glmY transcription by binding to three conserved sites in the purL-glmY intergenic region. (444 aa)
rpoERNA polymerase sigma E factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase (RNAP) to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma-E controls the envelope stress response, responding to periplasmic protein stress, increased levels of periplasmic lipopolysaccharide (LPS) as well as heat shock and oxidative stress; it controls protein processing in the extracytoplasmic compartment. The 90 member regulon consists of the genes necessary for the synthesis and maintenance of both proteins and LPS of the outer me [...] (191 aa)
norRAnaerobic nitric oxide reductase DNA-binding transcriptional activator; Required for the expression of anaerobic nitric oxide (NO) reductase, acts as a transcriptional activator for at least the norVW operon. Activation also requires sigma-54. Not required for induction of the aerobic NO-detoxifying enzyme NO dioxygenase. Binds to the promoter region of norVW, to a consensus target sequence, GT-(N7)-AC, which is highly conserved among proteobacteria. (504 aa)
fhlAFormate hydrogenlyase transcriptional activator; Required for induction of expression of the formate dehydrogenase H and hydrogenase-3 structural genes. Also activates expression of hyf operon (encodes the silent hydrogenase-4 gene cluster). (692 aa)
rpoSRNA polymerase, sigma S (sigma 38) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the master transcriptional regulator of the stationary phase and the general stress response. Controls, positively or negatively, the expression of several hundred genes, which are mainly involved in metabolism, transport, regulation and stress management. (330 aa)
rpoDRNA polymerase, sigma 70 (sigma D) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth. Preferentially transcribes genes associated with fast growth, such as ribosomal operons, other protein-synthesis related genes, rRNA- and tRNA-encoding genes and prfB. Belongs to the sigma-70 factor family. RpoD/SigA subfamily. (613 aa)
rpoNRNA polymerase, sigma 54 (sigma N) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is responsible for the expression of enzymes involved in arginine catabolism. The open complex (sigma-54 and core RNA polymerase) serves as the receptor for the receipt of the melting signal from the remotely bound activator protein GlnG(NtrC). (477 aa)
rpoARNA polymerase, alpha subunit; DNA-dependent RNA polymerase (RNAP) catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. This subunit plays an important role in subunit assembly since its dimerization is the first step in the sequential assembly of subunits to form the holoenzyme. (329 aa)
rtcRSigma 54-dependent transcriptional regulator of rtcBA expression; Transcriptional repressor of the rtcAB genes. Interacts with sigma-54. (532 aa)
rpoHRNA polymerase, sigma 32 (sigma H) factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is involved in regulation of expression of heat shock genes. Intracellular concentration of free RpoH protein increases in response to heat shock, which causes association with RNA polymerase (RNAP) and initiation of transcription of heat shock genes, including numerous global transcriptional regulators and genes involved in maintaining membrane functionality and homeostasis. RpoH is then quic [...] (284 aa)
mutMFormamidopyrimidine/5-formyluracil/ 5-hydroxymethyluracil DNA glycosylase; Involved in base excision repair of DNA damaged by oxidation or by mutagenic agents. Acts as DNA glycosylase that recognizes and removes damaged bases. Has a preference for oxidized purines, such as 7,8-dihydro-8-oxoguanine (8-oxoG) and its derivatives such as guanidinohydantoin:C and spiroiminodihydantoin:C, however it also acts on thymine glycol:G, 5,6-dihydrouracil:G and 5-hydroxyuracil:G. Has AP (apurinic/apyrimidinic) lyase activity and introduces nicks in the DNA strand. Cleaves the DNA backbone by beta-de [...] (269 aa)
rpoZRNA polymerase, omega subunit; Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits. (91 aa)
emrDMultidrug efflux system protein; Multidrug resistance pump that participates in a low energy shock adaptive response; Belongs to the major facilitator superfamily. (394 aa)
aslBPutative AslA-specific sulfatase-maturating enzyme; Putative arylsulfatase regulator; Protein involved in sulfur metabolic process and protein folding; Belongs to the radical SAM superfamily. Anaerobic sulfatase-maturating enzyme family. (411 aa)
glnGDNA-binding transcriptional regulator NtrC; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Phosphorylated NtrC binds directly to DNA and stimulates the formation of open promoter-sigma54-RNA polymerase complexes. Activates transcription of many genes and operons whose products minimize the slowing of growth under nitrogen-limiting conditions, including genes coding for glutamine synthetase (glnA), transporters, amino acid permeases and catabolic enzymes. (469 aa)
glnLSensory histidine kinase in two-component regulatory system with GlnG; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Under conditions of nitrogen limitation, NtrB autophosphorylates and transfers the phosphoryl group to NtrC. In the presence of nitrogen, acts as a phosphatase that dephosphorylates and inactivates NtrC. (349 aa)
glnAGlutamine synthetase; Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia. (469 aa)
rpoBRNA polymerase, beta subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1342 aa)
rpoCRNA polymerase, beta prime subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1407 aa)
zraRTranscriptional regulatory protein ZraR; Member of the two-component regulatory system ZraS/ZraR. When activated by ZraS it acts in conjunction with sigma-54 to regulate the expression of zraP. Positively autoregulates the expression of the zraSR operon. (441 aa)
actPAcetate transporter; Transports acetate. Also able to transport glycolate. (549 aa)
yjcSMetallo-beta-lactamase superfamily protein; Protein involved in sulfur metabolic process; Belongs to the metallo-beta-lactamase superfamily. (661 aa)
fecIRNA polymerase sigma-19 factor, fec operon-specific; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor regulates the fec genes for iron dicitrate transport (Probable); Belongs to the sigma-70 factor family. ECF subfamily. (173 aa)
thiQThiamine/thiamine pyrophosphate ABC transporter ATPase; Part of the ABC transporter complex ThiBPQ involved in thiamine import. Responsible for energy coupling to the transport system (Probable); Belongs to the ABC transporter superfamily. Thiamine importer (TC 3.A.1.19.1) family. (232 aa)
sgrTInhibitor of glucose uptake; Acts to promote recovery from glucose-phosphate stress due to intracellular accumulation of glucose-6-phosphate caused by disruption of glycolytic flux or in the presence of (toxic) non-metabolizable glucose phosphate analogs. It may do so by inhibiting the transporter activity for glucose uptake (PtsG) as cells that overexpress this protein do not seem to import glucose although they have nearly wild- type levels of PtsG. (43 aa)
sgrRTranscriptional DNA-binding transcriptional activator of sgrS sRNA; Activates the small RNA gene sgrS under glucose-phosphate stress conditions as well as yfdZ. Represses its own transcription under both stress and non-stress conditions; this repression likely provides one measure of control over sgrR at the level of synthesis. Might act as a sensor of the intracellular accumulation of phosphoglucose by binding these molecules in its C-terminal solute- binding domain. (551 aa)
setABroad specificity sugar efflux system; Involved in the efflux of sugars. The physiological role may be the detoxification of non-metabolizable sugar analogs. Can transport IPTG, lactose and glucose. Has broad substrate specificity, with preferences for glucosides or galactosides with alkyl or aryl substituents; Belongs to the major facilitator superfamily. Set transporter family. (392 aa)
prpRPropionate catabolism operon regulatory protein; Involved in the transcriptional regulation of the propionate catabolism operon. (528 aa)
potFPutrescine ABC transporter periplasmic binding protein; Required for the activity of the bacterial periplasmic transport system of putrescine. Polyamine binding protein. Belongs to the bacterial solute-binding protein PotD/PotF family. (370 aa)
potGPutrescine ABC transporter ATPase; Part of the binding-protein-dependent transport system for putrescine. Probably responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily. (377 aa)
potIPutrescine ABC transporter permease; Required for the activity of the bacterial periplasmic transport system of putrescine; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily. (281 aa)
ptsGFused glucose-specific PTS enzymes: IIB component/IIC component; The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The enzyme II complex composed of PtsG and Crr is involved in glucose transport. Also functions as a chemoreceptor monitoring the environment for changes in sugar concentration and an effector modulating the activity of the transcriptional repressor Mlc. (477 aa)
dhaRdhaKLM operon transcription activator; Positively regulates the dhaKLM operon from a sigma-70 promoter. Represses its own expression. (639 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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