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nlpE nlpE rcsF rcsF sfmZ sfmZ narL narL narX narX rstA rstA rstB rstB tus tus rcsA rcsA narP narP rcsD rcsD rcsB rcsB rcsC rcsC narQ narQ glrR glrR yfhG yfhG glrK glrK pitB pitB ygiV ygiV ygiW ygiW qseB qseB qseC qseC arcB arcB yrfF yrfF envZ envZ ompR ompR yhjB yhjB uhpT uhpT uhpC uhpC uhpB uhpB uhpA uhpA cpxA cpxA cpxR cpxR zraP zraP zraS zraS zraR zraR creA creA creB creB creC creC creD creD arcA arcA cpxP cpxP
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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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
filled nodes:
a 3D structure is known or predicted
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experimentally determined
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nlpELipoprotein involved with copper homeostasis and adhesion; Involved in copper homeostasis, could be involved in both copper efflux and the delivery of copper to copper-dependent enzymes. Required for efficient binding of stationary phase cells to hydrophobic surfaces, part of the process of biofilm formation. Functions during envelope stress responses; when overproduced induces degP through the activation of the two-component envelope stress response system CpxA/CpxR. DegP induction seems to require membrane anchoring of this protein. Structural changes and/or interaction of the CXXC m [...] (236 aa)
rcsFPutative outer membrane protein; Essential component of the Rcs signaling system, which controls transcription of numerous genes. Plays a role in signal transduction from the cell surface to the histidine kinase RcsC. May detect outer membrane defects. The system controls expression of genes involved in colanic acid capsule synthesis, biofilm formation and cell division. Belongs to the RcsF family. (134 aa)
sfmZResponse regulator family protein; Fimbrial Z protein; probable signal transducer; Protein involved in transcription activator activity and transcription. (210 aa)
narLResponse regulator in two-component regulatory system with NarX; This protein activates the expression of the nitrate reductase (narGHJI) and formate dehydrogenase-N (fdnGHI) operons and represses the transcription of the fumarate reductase (frdABCD) operon in response to a nitrate/nitrite induction signal transmitted by either the NarX or NarQ proteins. (216 aa)
narXSensory histidine kinase in two-component regulatory system with NarL; Acts as a sensor for nitrate/nitrite and transduces signal of nitrate availability to the NarL protein and of both nitrate/nitrite to the NarP protein. NarX probably activates NarL and NarP by phosphorylation in the presence of nitrate. NarX also plays a negative role in controlling NarL activity, probably through dephosphorylation in the absence of nitrate. (598 aa)
rstAResponse regulator of RstAB two-component system; Member of the two-component regulatory system RstB/RstA. (239 aa)
rstBSensory histidine kinase of RstAB two-component system; Member of the two-component regulatory system RstB/RstA. RstB functions as a membrane-associated protein kinase that phosphorylates RstA (Probable). (433 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)
rcsATranscriptional regulator of colanic acid capsular biosynthesis; Component of the Rcs signaling system, which controls transcription of numerous genes. Binds, with RcsB, to the RcsAB box to regulate expression of genes involved in colanic acid capsule synthesis. (207 aa)
narPResponse regulator in two-component regulatory system with NarQ; This protein activates the expression of the nitrate reductase (narGHJI) and formate dehydrogenase-N (fdnGHI) operons and represses the transcription of the fumarate reductase (frdABCD) operon in response to a nitrate/nitrite induction signal transmitted by either the NarX or NarQ proteins. (215 aa)
rcsDPhosphotransfer intermediate protein in two-component regulatory system with RcsBC; Component of the Rcs signaling system, which controls transcription of numerous genes. RcsD is a phosphotransfer intermediate between the sensor kinase RcsC and the response regulator RcsB. It acquires a phosphoryl group from RcsC and transfers it to RcsB. The system controls expression of genes involved in colanic acid capsule synthesis, biofilm formation and cell division. (890 aa)
rcsBResponse regulator in two-component regulatory system with RcsC and YojN; Component of the Rcs signaling system, which controls transcription of numerous genes. RcsB is the response regulator that binds to regulatory DNA regions. Can function both in an RcsA-dependent or RcsA-independent manner. The system regulates expression of numerous genes, including genes involved in colanic acid capsule synthesis, biofilm formation, cell division and outer membrane proteins synthesis. Also involved, with GadE, in control of glutamate-dependent acid resistance, and, with BglJ, in derepression of [...] (216 aa)
rcsCHybrid sensory kinase in two-component regulatory system with RcsB and YojN; Component of the Rcs signaling system, which controls transcription of numerous genes. RcsC functions as a membrane- associated protein kinase that phosphorylates RcsD in response to environmental signals. The phosphoryl group is then transferred to the response regulator RcsB. RcsC has also phosphatase activity. The system controls expression of genes involved in colanic acid capsule synthesis, biofilm formation and cell division. (949 aa)
narQSensory histidine kinase in two-component regulatory system with NarP; Acts as a sensor for nitrate/nitrite and transduces signal of nitrate/nitrite availability to the NarL/NarP proteins. NarQ probably activates NarL and NarP by phosphorylation. NarQ probably negatively regulates the NarL protein by dephosphorylation. (566 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)
yfhGPutative outer membrane protein modulating the QseEF response; Putative alpha helix protein. (237 aa)
glrKSensor protein kinase regulating glmY sRNA in two-component system with response regulator GlrR; Member of the two-component regulatory system GlrR/GlrK that up-regulates transcription of the glmY sRNA when cells enter the stationary growth phase. Activates GlrR by phosphorylation. (475 aa)
pitBPhosphate transporter; Low-affinity inorganic phosphate transport; Belongs to the inorganic phosphate transporter (PiT) (TC 2.A.20) family. Pit subfamily. (499 aa)
ygiVTranscriptional repressor for mcbR biofilm gene; Represses expression of mcbR. (160 aa)
ygiWHydrogen peroxide and cadmium resistance periplasmic protein; stress-induced OB-fold protein. (130 aa)
qseBQuorum sensing DNA-binding response regulator in two-component regulatory system with QseC; Member of a two-component regulatory system QseB/QseC. Activates the flagella regulon by activating transcription of FlhDC. Currently it is not known whether this effect is direct or not. (219 aa)
qseCQuorum sensing sensory histidine kinase in two-component regulatory system with QseB; Member of a two-component regulatory system QseB/QseC. Activates the flagella regulon by activating transcription of FlhDC. May activate QseB by phosphorylation. (449 aa)
arcBAerobic respiration control sensor protein ArcB; Member of the two-component regulatory system ArcB/ArcA. Sensor-regulator protein for anaerobic repression of the arc modulon. Activates ArcA via a four-step phosphorelay. ArcB can also dephosphorylate ArcA by a reverse phosphorelay involving His-717 and Asp-576. (778 aa)
yrfFPutative RcsCDB-response attenuator, inner membrane protein; Putative dehydrogenase. (711 aa)
envZSensory histidine kinase in two-component regulatory system with OmpR; Member of the two-component regulatory system EnvZ/OmpR involved in osmoregulation (particularly of genes ompF and ompC) as well as other genes. EnvZ functions as a membrane-associated protein kinase that phosphorylates OmpR in response to environmental signals; at low osmolarity OmpR activates ompF transcription, while at high osmolarity it represses ompF and activates ompC transcription. Also dephosphorylates OmpR in the presence of ATP. The cytoplasmic dimerization domain (CDD) forms an osmosensitive core; increa [...] (450 aa)
ompRResponse regulator in two-component regulatory system with EnvZ; Member of the two-component regulatory system EnvZ/OmpR involved in osmoregulation (particularly of genes ompF and ompC) as well as other genes. Plays a central role in both acid and osmotic stress responses. Binds to the promoter of both ompC and ompF; at low osmolarity it activates ompF transcription, while at high osmolarity it represses ompF and activates ompC transcription. Involved in acid stress response; this requires EnvZ but not OmpR phosphorylation. Phosphorylated by EnvZ; this stimulates OmpR's DNA-binding abi [...] (239 aa)
yhjBPutative DNA-binding transcriptional response regulator; Putative regulator; Protein involved in transcription activator activity and transcription. (200 aa)
uhpTHexose phosphate transporter; Mediates the exchange of external hexose 6-phosphate and internal inorganic phosphate. Can transport glucose-6-phosphate, fructose-6-phosphate and mannose-6-phosphate. Also catalyzes the neutral exchange of internal and external phosphate. (463 aa)
uhpCMembrane protein regulates uhpT expression; Part of the UhpABC signaling cascade that controls the expression of the hexose phosphate transporter UhpT. UhpC senses external glucose-6-phosphate and interacts with the histidine kinase UhpB, leading to the stimulation of the autokinase activity of UhpB. Belongs to the major facilitator superfamily. Organophosphate:Pi antiporter (OPA) (TC 2.A.1.4) family. (439 aa)
uhpBSensory histidine kinase in two-component regulatory sytem with UhpA; Part of the UhpABC signaling cascade that controls the expression of the hexose phosphate transporter UhpT. UhpB functions as a membrane-associated protein kinase that autophosphorylates in response to interaction with UhpC, and subsequently transfers its phosphate group to the response regulator UhpA. Can also dephosphorylate UhpA. (500 aa)
uhpAResponse regulator in two-component regulatory system wtih UhpB; Part of the UhpABC signaling cascade that controls the expression of the hexose phosphate transporter UhpT. Activates the transcription of the uhpT gene. Acts by binding specifically to the uhpT promoter region. (196 aa)
cpxASensory histidine kinase in two-component regulatory system with CpxR; Histidine kinase member of the two-component regulatory system CpxA/CpxR which responds to envelope stress response by activating expression of downstream genes including cpxP, degP, dsbA and ppiA. Activates CpxR by phosphorylation; has autokinase, phosphotransferase and (in the presence of Mg(2+) and/or ATP or ADP) phosphatase activity. The kinase activity is inhibited by periplasmic accessory protein CpxP; proteolysis of CpxP relieves inhibition. Involved in several diverse cellular processes, including the functi [...] (457 aa)
cpxRResponse regulator in two-component regulatory system with CpxA; Response regulator member of the two-component regulatory system CpxA/CpxR which responds to envelope stress response by activating expression of downstream genes including cpxP, degP, dsbA and ppiA. Required for efficient binding of stationary phase cells to hydrophobic surfaces, part of the process of biofilm formation. Induced upon cell surface binding, subsequently induces genes it controls (cpxP, dsbA and spy, degP is only partially induced). Binds and activates transcription from the degP promoter ; binding is enhan [...] (232 aa)
zraPZn-dependent periplasmic chaperone; Binds zinc. Could be an important component of the zinc- balancing mechanism; Belongs to the ZraP family. (141 aa)
zraSSensory histidine kinase in two-component regulatory system with ZraR; Member of the two-component regulatory system ZraS/ZraR. May function as a membrane-associated protein kinase that phosphorylates ZraR in response to high concentrations of zinc or lead in the medium. (465 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)
creAPutative periplasmic protein. (157 aa)
creBResponse regulator in two-component regulatory system with CreC; Member of the two-component regulatory system CreC/CreB involved in catabolic regulation. (229 aa)
creCSensory histidine kinase in two-component regulatory system with CreB or PhoB; Member of the two-component regulatory system CreC/CreB involved in catabolic regulation. CreC may function as a membrane- associated protein kinase that phosphorylates CreB in response to environmental signals. CreC can also phosphorylate PhoB. (474 aa)
creDInner membrane protein; Tolerance to colicin E2. (450 aa)
arcAResponse regulator in two-component regulatory system with ArcB or CpxA; Member of the two-component regulatory system ArcB/ArcA. Represses a wide variety of aerobic enzymes under anaerobic conditions. Controls the resistance of E.coli to dyes; required for expression of the alkaline phosphatase and sex factor F genes; It also may be involved in the osmoregulation of envelope proteins. When activated by ArcB, it negatively regulates the expression of genes of aerobic function. Activates the transcription of the plfB operon by binding to its promoter. (238 aa)
cpxPInhibitor of the cpx response; Acts as an auxiliary protein in the Cpx two-component envelope stress response system, helping modulate the Cpx response systems response to some inducers. Binds the periplasmic domain of sensor histidine kinase CpxA, inhibiting induction of the Cpx envelope stress response in the absence of inducer; overexpression decreases Cpx pathway activity. Some periplasmic stimulii (shown for P pili subunit PapE and probably 0.3 M NaCl) increase CpxP's susceptibility to DegP, leading to CpxP degradation, inducing the Cpx pathway. Aids in combating extracytoplasmic [...] (166 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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