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pstC pstC glnD glnD metQ metQ proB proB phoB phoB phoR phoR glnK glnK amtB amtB htpG htpG rhtA rhtA oppA oppA fliC fliC ppk ppk glnB glnB clpB clpB cysN cysN lysR lysR serA serA fbaA fbaA metK metK glnE glnE rpoN rpoN gltB gltB prkB prkB nirD nirD rpe rpe livG livG dppA dppA pstS pstS glnG glnG glnL glnL tpiA tpiA hslU hslU metF metF
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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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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
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pstCPhosphate ABC transporter permease; Part of the binding-protein-dependent transport system for phosphate; probably responsible for the translocation of the substrate across the membrane; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily. (319 aa)
glnDUridylyltransferase; Modifies, by uridylylation and deuridylylation, the PII regulatory proteins GlnB and GlnK, in response to the nitrogen status of the cell that GlnD senses through the glutamine level. Under low glutamine levels, catalyzes the conversion of the PII proteins and UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls uridylylation state and activity of the PII proteins, and plays an important role in the regulation of nitrogen assimilation and metabolism. (890 aa)
metQDL-methionine transporter subunit; This protein is a component of a D-methionine permease, a binding protein-dependent, ATP-driven transport system. Belongs to the NlpA lipoprotein family. (271 aa)
proBGamma-glutamate kinase; Catalyzes the transfer of a phosphate group to glutamate to form L-glutamate 5-phosphate. (367 aa)
phoBResponse regulator in two-component regulatory system with PhoR; This protein is a positive regulator for the phosphate regulon. Transcription of this operon is positively regulated by PhoB and PhoR when phosphate is limited. (229 aa)
phoRSensory histidine kinase in two-component regulatory system with PhoB; Member of the two-component regulatory system PhoR/PhoB involved in the phosphate regulon genes expression. PhoR may function as a membrane-associated protein kinase that phosphorylates PhoB in response to environmental signals. (431 aa)
glnKNitrogen assimilation regulatory protein for GlnL, GlnE, and AmtB; 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 (By similarity); Belongs to the P(II) protein family. (112 aa)
amtBAmmonium transporter; Involved in the uptake of ammonia; Belongs to the ammonia transporter channel (TC 1.A.11.2) family. (428 aa)
htpGProtein refolding molecular co-chaperone Hsp90, Hsp70-dependent; Molecular chaperone. Has ATPase activity. (624 aa)
rhtAThreonine and homoserine efflux system; Involved in the efflux of threonine and homoserine. Can also export other amino acids such as proline, serine, histidine and cysteine; Belongs to the drug/metabolite transporter (DMT) superfamily. 10 TMS drug/metabolite exporter (DME) (TC 2.A.7.3) family. (295 aa)
oppAOligopeptide ABC transporter periplasmic binding protein; This protein is a component of the oligopeptide permease, a binding protein-dependent transport system, it binds peptides up to five amino acids long with high affinity; Belongs to the bacterial solute-binding protein 5 family. (543 aa)
fliCFlagellar filament structural protein (flagellin); Flagellin is the subunit protein which polymerizes to form the filaments of bacterial flagella. (498 aa)
ppkPolyphosphate kinase, component of RNA degradosome; Catalyzes the reversible transfer of the terminal phosphate of ATP to form a long-chain polyphosphate (polyP). Can form linear polymers of orthophosphate with chain lengths up to 1000 or more. Can use GTP instead of ATP, but the efficiency of GTP is 5% that of ATP. Also exhibits several other enzymatic activities, which include: ATP synthesis from polyP in the presence of excess ADP, general nucleoside- diphosphate kinase activity, linear guanosine 5'-tetraphosphate (ppppG) synthesis and autophosphorylation. (688 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)
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)
cysNSulfate adenylyltransferase, subunit 1; May be the GTPase, regulating ATP sulfurylase activity. (475 aa)
lysRTranscriptional activator of lysA; This protein activates the transcription of the lysA gene encoding diaminopimelate decarboxylase. LysR is also a negative regulator of its own expression; Belongs to the LysR transcriptional regulatory family. (311 aa)
serAD-3-phosphoglycerate dehydrogenase; Catalyzes the reversible oxidation of 3-phospho-D-glycerate to 3-phosphonooxypyruvate, the first step of the phosphorylated L- serine biosynthesis pathway. Also catalyzes the reversible oxidation of 2-hydroxyglutarate to 2-oxoglutarate. (410 aa)
fbaAFructose-bisphosphate aldolase, class II; Catalyzes the aldol condensation of dihydroxyacetone phosphate (DHAP or glycerone-phosphate) with glyceraldehyde 3-phosphate (G3P) to form fructose 1,6-bisphosphate (FBP) in gluconeogenesis and the reverse reaction in glycolysis. (359 aa)
metKS-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. Is essential for growth. (384 aa)
glnEFused deadenylyltransferase/adenylyltransferase for glutamine synthetase; Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase inactivates GlnA by covalent transfer of an adenylyl group from ATP to 'Tyr-398' of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N- terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The regulatory region of GlnE binds the signa [...] (946 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)
gltBGlutamate synthase, large subunit; Catalyzes the conversion of L-glutamine and 2-oxoglutarate into two molecules of L-glutamate. (1486 aa)
prkBProbable phosphoribulokinase; Protein involved in glucose metabolic process. (289 aa)
nirDNitrite reductase (NADH) small subunit; Required for activity of the reductase. To B.subtilis NasE. (108 aa)
rpeD-ribulose-5-phosphate 3-epimerase; Catalyzes the reversible epimerization of D-ribulose 5- phosphate to D-xylulose 5-phosphate. (225 aa)
livGBranched-chain amino acid ABC transporter ATPase; Component of the leucine-specific transport system. (255 aa)
dppADipeptide/heme ABC transporter periplasmic binding protein; Dipeptide-binding protein of a transport system that can be subject to osmotic shock. DppA is also required for peptide chemotaxis; Belongs to the bacterial solute-binding protein 5 family. (535 aa)
pstSPhosphate ABC transporter periplasmic binding protein; Part of the ABC transporter complex PstSACB involved in phosphate import; Belongs to the PstS family. (346 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)
tpiATriosephosphate isomerase; Involved in the gluconeogenesis. Catalyzes stereospecifically the conversion of dihydroxyacetone phosphate (DHAP) to D- glyceraldehyde-3-phosphate (G3P); Belongs to the triosephosphate isomerase family. (255 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)
metF5,10-methylenetetrahydrofolate reductase; Methylenetetrahydrofolate reductase required to generate the methyl groups necessary for methionine synthetase to convert homocysteine to methionine. (296 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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