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| | baeS | Sensory histidine kinase in two-component regulatory system with BaeR; Member of the two-component regulatory system BaeS/BaeR which responds to envelope stress. Activates expression of periplasmic chaperone spy in response to spheroplast formation, indole and P pili protein PapG overexpression. Activates BaeR by phosphorylation which then activates the mdtABCD and probably the CRISPR-Cas casABCDE-ygbT-ygbF operons. (467 aa) |
| | yegI | Protein kinase-related putative non-specific DNA-binding protein; Probable serine/threonine kinase. (648 aa) |
| | udk | Uridine/cytidine kinase; Protein involved in nucleobase, nucleoside and nucleotide interconversion; Belongs to the uridine kinase family. (213 aa) |
| | wzc | Colanic acid production tyrosine-protein kinase; Required for the extracellular polysaccharide colanic acid synthesis. The autophosphorylated form is inactive. Probably involved in the export of colanic acid from the cell to medium. Phosphorylates udg. (720 aa) |
| | wzzB | Regulator of length of O-antigen component of lipopolysaccharide chains; Confers a modal distribution of chain length on the O-antigen component of lipopolysaccharide (LPS). Gives rise to a reduced number of short chain molecules and increases in numbers of longer molecules; Belongs to the WzzB/Cld/Rol family. (326 aa) |
| | cobU | Cobinamide kinase and cobinamide phosphate guanylyltransferase; Catalyzes ATP-dependent phosphorylation of adenosylcobinamide and addition of GMP to adenosylcobinamide phosphate. Belongs to the CobU/CobP family. (181 aa) |
| | yedV | Putative sensory kinase in two-component regulatory system with YedW; Member of a two-component regulatory system HprR/HprS involved in response to hydrogen peroxide. Senses H(2)O(2), maybe via the redox state of the membrane. Activates HprR by phosphorylation. Can also phosphorylate CusR. (452 aa) |
| | cheA | Chemotaxis protein CheA; Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. CheA is autophosphorylated; it can transfer its phosphate group to either CheB or CheY. (654 aa) |
| | pykA | Pyruvate kinase II, glucose stimulated; Protein involved in glycolysis, fermentation and anaerobic respiration. (480 aa) |
| | manZ | Mannose-specific enzyme IID component of PTS; 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 ManXYZ PTS system is involved in mannose transport. Also functions as a receptor for bacterial chemotaxis and is required for infection of the cell by bacteriophage lambda where it most likely functions as a pore for penetration of lambda DNA. (283 aa) |
| | manY | Mannose-specific enzyme IIC component of PTS; 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 ManXYZ PTS system is involved in mannose transport. Also functions as a receptor for bacterial chemotaxis and is required for infection of the cell by bacteriophage lambda where it most likely functions as a pore for penetration of lambda DNA. (266 aa) |
| | manX | Fused mannose-specific PTS enzymes: IIA component/IIB 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 ManXYZ PTS system is involved in mannose transport. Also functions as a receptor for bacterial chemotaxis and is required for infection of the cell by bacteriophage lambda where it most likely functions as a pore for penetration of lambda DNA. (323 aa) |
| | yeaG | Protein kinase, endogenous substrate unidentified; autokinase; Belongs to the PrkA family. (644 aa) |
| | ydjH | Putative kinase; Belongs to the carbohydrate kinase PfkB family. (315 aa) |
| | chbB | N,N'-diacetylchitobiose-specific enzyme IIB component of PTS; 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 ChbABC PTS system is involved in the transport of the chitin disaccharide N,N'-diacetylchitobiose (GlcNAc2). Also able to use N,N',N''-triacetyl chitotriose (GlcNAc3). (106 aa) |
| | chbC | N,N'-diacetylchitobiose-specific enzyme IIC component of PTS; 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 ChbABC PTS system is involved in the transport of the chitin disaccharide N,N'-diacetylchitobiose (GlcNAc2). Also able to use N,N',N''-triacetyl chitotriose (GlcNAc3). (452 aa) |
| | chbA | N,N'-diacetylchitobiose-specific enzyme IIA component of PTS; 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 ChbABC PTS system is involved in the transport of the chitin disaccharide N,N'-diacetylchitobiose (GlcNAc2). Also able to use N,N',N''-triacetyl chitotriose (GlcNAc3). (116 aa) |
| | pfkB | 6-phosphofructokinase II; Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis. (309 aa) |
| | ppsR | PEP synthase kinase and PEP synthase pyrophosphorylase; Bifunctional serine/threonine kinase and phosphorylase involved in the regulation of the phosphoenolpyruvate synthase (PEPS) by catalyzing its phosphorylation/dephosphorylation. (277 aa) |
| | pykF | Pyruvate kinase I (formerly F), fructose stimulated; Protein involved in glycolysis, fermentation and anaerobic respiration. (470 aa) |
| | anmK | anhydro-N-acetylmuramic acid kinase; Catalyzes the specific phosphorylation of 1,6-anhydro-N- acetylmuramic acid (anhMurNAc) with the simultaneous cleavage of the 1,6-anhydro ring, generating MurNAc-6-P. Is required for the utilization of anhMurNAc either imported from the medium or derived from its own cell wall murein, and thus plays a role in cell wall recycling; Belongs to the anhydro-N-acetylmuramic acid kinase family. (369 aa) |
| | pdxY | Pyridoxamine kinase; Pyridoxal kinase involved in the salvage pathway of pyridoxal 5'-phosphate (PLP). Catalyzes the phosphorylation of pyridoxal to PLP in vivo, but shows very low activity compared to PdxK. Displays a low level of pyridoxine kinase activity when overexpressed, which is however not physiologically relevant. (287 aa) |
| | malX | Maltose and glucose-specific PTS enzyme IIB component and 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. This system is involved in maltose transport. MalX can also recognize and transport glucose even though this sugar may not represent the natural substrate of the system. (530 aa) |
| | rstB | Sensory 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) |
| | lsrK | Autoinducer-2 kinase; Catalyzes the phosphorylation of autoinducer-2 (AI-2) to phospho-AI-2, which subsequently inactivates the transcriptional regulator LsrR and leads to the transcription of the lsr operon. Phosphorylates the ring-open form of (S)-4,5-dihydroxypentane-2,3-dione (DPD), which is the precursor to all AI-2 signaling molecules, at the C5 position. Required for the regulation of the lsr operon and many other genes. (530 aa) |
| | hipA | Serine/threonine-protein kinase toxin HipA; Toxic component of a type II toxin-antitoxin (TA) system, first identified by mutations that increase production of persister cells, a fraction of cells that are phenotypic variants not killed by antibiotics, which lead to multidrug tolerance. Persistence may be ultimately due to global remodeling of the persister cell's ribosomes. Phosphorylates Glu-tRNA-ligase (AC P04805, gltX, on 'Ser-239') in vivo. Phosphorylation of GltX prevents it from being charged, leading to an increase in uncharged tRNA(Glu). This induces amino acid starvation and [...] (440 aa) |
| | narX | Sensory 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) |
| | ispE | 4-diphosphocytidyl-2-C-methylerythritol kinase; Catalyzes the phosphorylation of the position 2 hydroxy group of 4-diphosphocytidyl-2C-methyl-D-erythritol. Phosphorylates isopentenyl phosphate at low rates. Also acts on isopentenol, and, much less efficiently, dimethylallyl alcohol. Dimethylallyl monophosphate does not serve as a substrate. (283 aa) |
| | dhaK | Dihydroxyacetone kinase, PTS-dependent, dihydroxyacetone-binding subunit; Dihydroxyacetone binding subunit of the dihydroxyacetone kinase, which is responsible for the phosphoenolpyruvate (PEP)- dependent phosphorylation of dihydroxyacetone via a phosphoryl group transfer from DhaL-ATP. Binds covalently dihydroxyacetone in hemiaminal linkage. DhaK acts also as corepressor of the transcription activator DhaR by binding to the sensor domain of DhaR. In the presence of dihydroxyacetone, DhaL-ADP displaces DhaK and stimulates DhaR activity. In the absence of dihydroxyacetone, DhaL- ADP is [...] (356 aa) |
| | dhaL | Dihydroxyacetone kinase, C-terminal domain; ADP-binding subunit of the dihydroxyacetone kinase, which is responsible for the phosphoenolpyruvate (PEP)-dependent phosphorylation of dihydroxyacetone. DhaL-ADP is converted to DhaL- ATP via a phosphoryl group transfer from DhaM and transmits it to dihydroxyacetone bound to DhaK. DhaL acts also as coactivator of the transcription activator DhaR by binding to the sensor domain of DhaR. In the presence of dihydroxyacetone, DhaL-ADP displaces DhaK and stimulates DhaR activity. In the absence of dihydroxyacetone, DhaL-ADP is converted by the PT [...] (210 aa) |
| | dhaM | Putative dihydroxyacetone-specific PTS enzymes: HPr, EI components; Component of the dihydroxyacetone kinase complex, which is responsible for the phosphoenolpyruvate (PEP)-dependent phosphorylation of dihydroxyacetone. DhaM serves as the phosphoryl donor. Is phosphorylated by phosphoenolpyruvate in an EI- and HPr-dependent reaction, and a phosphorelay system on histidine residues finally leads to phosphoryl transfer to DhaL and dihydroxyacetone. (472 aa) |
| | phoQ | Sensory histidine kinase in two-component regulatory system with PhoP; Member of the two-component regulatory system PhoP/PhoQ involved in adaptation to low Mg(2+) environments and the control of acid resistance genes. In low periplasmic Mg(2+), PhoQ functions as a membrane-associated protein kinase that undergoes autophosphorylation and subsequently transfers the phosphate to PhoP, resulting in the expression of PhoP-activated genes (PAG) and repression of PhoP- repressed genes (PRG). In high periplasmic Mg(2+), acts as a protein phosphatase that dephosphorylates phospho-PhoP, resulti [...] (486 aa) |
| | thiK | Thiamine kinase; Catalyzes the phosphorylation of thiamine to thiamine phosphate. (274 aa) |
| | ptsG | Fused 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) |
| | torS | Hybrid sensory histidine kinase in two-component regulatory system with TorR; Member of the two-component regulatory system TorS/TorR involved in the anaerobic utilization of trimethylamine-N-oxide (TMAO). Detects the presence of TMAO in the medium and, in response, activates TorR via a four-step phosphorelay. When TMAO is removed, TorS can dephosphorylate TorR, probably by a reverse phosphorelay involving His- 860 and Asp-733. (914 aa) |
| | etk | Tyrosine-protein kinase, role in O-antigen capsule formation; Protein involved in protein modification process; Belongs to the etk/wzc family. (726 aa) |
| | lpxK | Lipid A 4'kinase; Transfers the gamma-phosphate of ATP to the 4'-position of a tetraacyldisaccharide 1-phosphate intermediate (termed DS-1-P) to form tetraacyldisaccharide 1,4'-bis-phosphate (lipid IVA). (328 aa) |
| | ybhK | Putative CofD superfamily transferase; Required for morphogenesis under gluconeogenic growth conditions; Belongs to the gluconeogenesis factor family. (302 aa) |
| | ybhA | Pyridoxal phosphate (PLP) phosphatase; Catalyzes the dephosphorylation of pyridoxal-phosphate (PLP). Can also hydrolyze erythrose-4-phosphate (Ery4P) and fructose-1,6-bis- phosphate (Fru1,6bisP); Belongs to the HAD-like hydrolase superfamily. CbbY/CbbZ/Gph/YieH family. (272 aa) |
| | galT | Galactose-1-phosphate uridylyltransferase; Protein involved in cell surface antigen activity, host-interacting, galactose metabolic process, colanic acid biosynthetic process, carbohydrate catabolic process and response to desiccation; Belongs to the galactose-1-phosphate uridylyltransferase type 1 family. (348 aa) |
| | galK | Galactokinase; Catalyzes the transfer of the gamma-phosphate of ATP to D- galactose to form alpha-D-galactose-1-phosphate (Gal-1-P). To a lesser extent, is also able to phosphorylate 2-deoxy-D-galactose and D- galactosamine. Is not able to use D-galacturonic acid, D-talose, L- altrose, and L-glucose as substrates. (382 aa) |
| | mngA | Fused 2-O-a-mannosyl-D-glycerate specific PTS enzymes: IIA component/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. This system is involved in mannosyl- D-glycerate transport. Also involved in thermoinduction of ompC. (658 aa) |
| | kdpD | Fused sensory histidine kinase in two-component regulatory system with KdpE: signal sensing protein; Member of the two-component regulatory system KdpD/KdpE involved in the regulation of the kdp operon. KdpD may function as a membrane-associated protein kinase that phosphorylates KdpE in response to environmental signals. (894 aa) |
| | nagE | N-acetyl glucosamine specific PTS enzyme IIC, IIB, and IIA components; 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. This system is involved in N-acetylglucosamine transport. It can also transport and phosphorylate the antibiotic streptozotocin. Could play a significant role in the recycling of peptidoglycan. (648 aa) |
| | citA | Sensory histidine kinase in two-component regulatory system with CitB; Member of the two-component regulatory system DpiA/DpiB, which is essential for expression of citrate-specific fermentation genes and genes involved in plasmid inheritance. Could be involved in response to both the presence of citrate and external redox conditions. Functions as a sensor kinase that phosphorylates DpiA in the presence of citrate. (552 aa) |
| | fepE | Regulator of length of O-antigen component of lipopolysaccharide chains; Part of the ferric enterobactin transport system. (377 aa) |
| | cusS | Copper-sensing histidine kinase in two-component regulatory system with CusR; Member of the two-component regulatory system CusS/CusR involved in response to copper and silver. Acts as a copper/silver ion sensor. Activates CusR by phosphorylation. (480 aa) |
| | glxK | Glycerate kinase II; Protein involved in carbohydrate catabolic process, glycolate metabolic process and allantoin assimilation pathway; Belongs to the glycerate kinase type-1 family. (381 aa) |
| | gsk | Inosine-guanosine kinase; Protein involved in nucleobase, nucleoside and nucleotide interconversion. (434 aa) |
| | phoR | Sensory 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) |
| | mak | Manno(fructo)kinase; Catalyzes the phosphorylation of fructose to fructose-6-P. Has also low level glucokinase activity in vitro. Is not able to phosphorylate D-ribose, D-mannitol, D-sorbitol, inositol, and L- threonine. (302 aa) |
| | aroL | Shikimate kinase II; Catalyzes the specific phosphorylation of the 3-hydroxyl group of shikimic acid using ATP as a cosubstrate. Belongs to the shikimate kinase family. AroL subfamily. (174 aa) |
| | coaE | dephospho-CoA kinase; Catalyzes the phosphorylation of the 3'-hydroxyl group of dephosphocoenzyme A to form coenzyme A; Belongs to the CoaE family. (206 aa) |
| | araB | L-ribulokinase; Protein involved in carbohydrate catabolic process; Belongs to the ribulokinase family. (566 aa) |
| | thrB | Homoserine kinase; Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate. Is also able to phosphorylate the hydroxy group on gamma-carbon of L-homoserine analogs when the functional group at the alpha-position is a carboxyl, an ester, or even a hydroxymethyl group. Neither L-threonine nor L-serine are substrates of the enzyme. (310 aa) |
| | ribF | Bifunctional riboflavin kinase/FAD synthetase; Catalyzes the phosphorylation of riboflavin to FMN followed by the adenylation of FMN to FAD; Belongs to the RibF family. (313 aa) |
| | sgcB | Putative enzyme IIB component of PTS; 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. (92 aa) |
| | creC | Sensory 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) |
| | nadR | Trifunctional NAD biosynthesis/regulator protein NadR; This enzyme has three activities: DNA binding, nicotinamide mononucleotide (NMN) adenylyltransferase and ribosylnicotinamide (RN) kinase. The DNA-binding domain binds to the nadB operator sequence in an NAD- and ATP-dependent manner. As NAD levels increase within the cell, the affinity of NadR for the nadB operator regions of nadA, nadB, and pncB increases, repressing the transcription of these genes. The RN kinase activity catalyzes the phosphorylation of RN to form nicotinamide ribonucleotide. The NMN adenylyltransferase activity [...] (410 aa) |
| | yjjJ | Putative protein kinase; Toxic when overexpressed in E.coli, leading to long filamentous cells. The toxic effect is neutralized by non-cognate antitoxin HipB. Does not seem to inhibit DNA, RNA or protein synthesis, and unlike paralogous toxin HipA its toxic activity is not counteracted by overexpression of GltX. Binds DNA. Might be a protein kinase (By similarity). (443 aa) |
| | kptA | RNA 2'-phosphotransferase; Removes the 2'-phosphate from RNA via an intermediate in which the phosphate is ADP-ribosylated by NAD followed by a presumed transesterification to release the RNA and generate ADP-ribose 1''-2''- cyclic phosphate (APPR>P). May function as an ADP-ribosylase. (184 aa) |
| | idnK | D-gluconate kinase, thermosensitive; Protein involved in carbohydrate catabolic process; Belongs to the gluconokinase GntK/GntV family. (187 aa) |
| | treB | Trehalose-specific PTS enzyme: IIB and 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. This system is involved in trehalose transport at low osmolarity. (473 aa) |
| | ulaC | L-ascorbate-specific enzyme IIA component of PTS; 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 UlaABC PTS system is involved in ascorbate transport. (154 aa) |
| | ulaB | L-ascorbate-specific enzyme IIB component of PTS; 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 UlaABC PTS system is involved in ascorbate transport. (101 aa) |
| | ulaA | L-ascorbate-specific enzyme IIC permease component of PTS; 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 UlaABC PTS system is involved in ascorbate transport. Belongs to the UlaA family. (465 aa) |
| | tsaE | tRNA(ANN) t(6)A37 threonylcarbamoyladenosine modification protein; Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine. Is probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, together with TsaD and TsaB. TsaE seems to play an indirect role in the t(6)A biosynthesis pathway, possibly in regulating the core enzymatic function of TsaD. Displays ATPase activity in vitro. (153 aa) |
| | dcuS | Sensor histidine kinase DcuS; Member of the two-component regulatory system DcuR/DcuS. Involved in the C4-dicarboxylate-stimulated regulation of the genes encoding the anaerobic fumarate respiratory system (frdABCD; nuoAN; dcuB; dcuC; sdhCDAB; etc.). Weakly regulates the aerobic C4- dicarboxylate transporter dctA. Activates DcuR by phosphorylation. (543 aa) |
| | basS | Sensory histidine kinase in two-component regulatory system with BasR; Member of the two-component regulatory system BasS/BasR Autophosphorylates and activates BasR by phosphorylation. (363 aa) |
| | alsK | D-allose kinase; Catalyzes the phosphorylation of D-allose to D-allose 6- phosphate. Has also low level glucokinase activity in vitro. Belongs to the ROK (NagC/XylR) family. (309 aa) |
| | dgkA | Diacylglycerol kinase; Recycling of diacylglycerol produced during the turnover of membrane phospholipid. (122 aa) |
| | aceK | Isocitrate dehydrogenase kinase/phosphatase; Bifunctional enzyme which can phosphorylate or dephosphorylate isocitrate dehydrogenase (IDH) on a specific serine residue. This is a regulatory mechanism which enables bacteria to bypass the Krebs cycle via the glyoxylate shunt in response to the source of carbon. When bacteria are grown on glucose, IDH is fully active and unphosphorylated, but when grown on acetate or ethanol, the activity of IDH declines drastically concomitant with its phosphorylation; Belongs to the AceK family. (578 aa) |
| | zraS | Sensory 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) |
| | coaA | Pantothenate kinase; Protein involved in coenzyme A biosynthetic process; Belongs to the prokaryotic pantothenate kinase family. (316 aa) |
| | frwD | Putative enzyme IIB component of PTS; 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. (113 aa) |
| | frwB | Putative enzyme IIB component of PTS; 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 FrwABC PTS system is involved in fructose transport. (106 aa) |
| | frwC | Putative enzyme IIC component of PTS; The phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitant with their translocation across the cell membrane. (359 aa) |
| | glpK | Glycerol kinase; Key enzyme in the regulation of glycerol uptake and metabolism. Catalyzes the phosphorylation of glycerol to yield sn- glycerol 3-phosphate. It also catalyzes the phosphorylation of dihydroxyacetone, L-glyceraldehyde and D-glyceraldehyde. It uses only ATP; Belongs to the FGGY kinase family. (502 aa) |
| | pfkA | 6-phosphofructokinase I; Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis; Belongs to the phosphofructokinase type A (PFKA) family. ATP-dependent PFK group I subfamily. Prokaryotic clade 'B1' sub- subfamily. (320 aa) |
| | cpxA | Sensory 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) |
| | rhaB | Rhamnulokinase; Involved in the catabolism of L-rhamnose (6-deoxy-L-mannose). It could also play a role in the metabolism of some rare sugars such as L-fructose. Catalyzes the transfer of the gamma-phosphate group from ATP to the 1-hydroxyl group of L-rhamnulose to yield L-rhamnulose 1- phosphate. Uridine triphosphate (UTP), cytidine 5-triphosphate (CTP), guanosine 5-triphosphate (GTP), and thymidine triphosphate (TTP) also can act as phosphoryl donors. It can also phosphorylate L-fuculose and L-xylulose. Belongs to the rhamnulokinase family. (489 aa) |
| | frvA | Putative enzyme IIA component of PTS; 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 FrvAB PTS system is involved in fructose transport. (148 aa) |
| | frvB | Putative PTS enzyme, 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 FrvAB PTS system is involved in fructose transport. (483 aa) |
| | yihV | 6-deoxy-6-sulphofructose kinase; Phosphorylates 6-deoxy-6-sulfo-D-fructose (SF) to 6-deoxy-6- sulfo-D-fructose 1-phosphate (SFP); Belongs to the carbohydrate kinase PfkB family. (298 aa) |
| | glnL | Sensory 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) |
| | srkA | Cpx stress response Thr/Ser protein kinase; A protein kinase that (auto)phosphorylates on Ser and Thr residues. Probably acts to suppress the effects of stress linked to accumulation of reactive oxygen species. Protects cells from stress by antagonizing the MazE-MazF TA module, probably indirectly as it has not been seen to phosphorylate MazE, MazF or MazG. Probably involved in the extracytoplasmic stress response. (328 aa) |
| | ubiB | Regulator of octaprenylphenol hydroxylation, ubiquinone synthesis; Is probably a protein kinase regulator of UbiI activity which is involved in aerobic coenzyme Q (ubiquinone) biosynthesis. Belongs to the ABC1 family. UbiB subfamily. (546 aa) |
| | wzzE | Entobacterial Common Antigen (ECA) polysaccharide chain length modulation protein; Modulates the polysaccharide chain length of enterobacterial common antigen (ECA). Required for the assembly of the phosphoglyceride-linked form of ECA (ECA(PG)) and the water-soluble cyclic form of ECA (ECA(CYC)). (348 aa) |
| | rbsK | Ribokinase; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. Belongs to the carbohydrate kinase PfkB family. Ribokinase subfamily. (309 aa) |
| | bglF | Fused beta-glucoside-specific PTS enzymes: IIA component/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. This system is involved in beta-glucoside transport. (625 aa) |
| | dgoK | 2-oxo-3-deoxygalactonate kinase; Protein involved in carbohydrate catabolic process; Belongs to the DgoK family. (292 aa) |
| | yidP | Uncharacterized HTH-type transcriptional regulator YidP; Pseudogene, arbutin specific enzyme IIC component of PTS;enzyme; Transport of small molecules: Carbohydrates, organic acids, alcohols; PTS system, arbutin-like IIB component; PTS system, arbutin-like IIC component. (238 aa) |
| | uhpB | Sensory 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) |
| | mtlA | Mannitol-specific PTS enzyme: IIA, IIB and IIC components; 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. This system is involved in D-mannitol transport. Also able to use D-mannonic acid. (637 aa) |
| | lyxK | L-xylulose kinase; Catalyzes the phosphorylation of L-xylulose and 3-keto-L- gulonate. Is involved in L-lyxose utilization via xylulose, and may also be involved in the utilization of 2,3-diketo-L-gulonate. (498 aa) |
| | xylB | Xylulokinase; Catalyzes the phosphorylation of D-xylulose to D-xylulose 5- phosphate. Also catalyzes the phosphorylation of 1- deoxy-D-xylulose to 1-deoxy-D-xylulose 5-phosphate, with lower efficiency. Can also use D-ribulose, xylitol and D- arabitol, but D-xylulose is preferred over the other substrates. Has a weak substrate-independent Mg-ATP-hydrolyzing activity ; Belongs to the FGGY kinase family. (484 aa) |
| | kdgK | 2-dehydro-3-deoxygluconokinase; Catalyzes the phosphorylation of 2-keto-3-deoxygluconate (KDG) to produce 2-keto-3-deoxy-6-phosphogluconate (KDPG). Belongs to the carbohydrate kinase PfkB family. (309 aa) |
| | gntK | Gluconokinase 2, thermoresistant; gluconate transport, GNT I system; Protein involved in glucose metabolic process; Belongs to the gluconokinase GntK/GntV family. (175 aa) |
| | envZ | Sensory 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) |
| | aroK | Shikimate kinase I; Catalyzes the specific phosphorylation of the 3-hydroxyl group of shikimic acid using ATP as a cosubstrate. Belongs to the shikimate kinase family. (173 aa) |
| | frlD | Fructoselysine 6-kinase; Catalyzes the ATP-dependent phosphorylation of fructoselysine to fructoselysine 6-phosphate. Functions in a fructoselysine degradation pathway that allows E.coli to grow on fructoselysine or psicoselysine. To a much lesser extenst, is also able to phosphorylate psicoselysine. (261 aa) |
| | prkB | Probable phosphoribulokinase; Protein involved in glucose metabolic process. (289 aa) |
| | nanK | N-acetylmannosamine kinase; Catalyzes the phosphorylation of N-acetylmannosamine (ManNAc) to ManNAc-6-P. Has also low level glucokinase activity in vitro. Belongs to the ROK (NagC/XylR) family. NanK subfamily. (291 aa) |
| | arcB | Aerobic 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) |
| | ptsN | Sugar-specific enzyme IIA component of PTS; Seems to have a role in regulating nitrogen assimilation. (163 aa) |
| | agaB | N-acetylgalactosamine-specific enzyme IIB component of PTS; 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. This system is involved in N-acetylgalactosamine transport. (158 aa) |
| | agaV | N-acetylgalactosamine-specific enzyme IIB component of PTS; 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. This system is involved in N-acetylgalactosamine transport. (157 aa) |
| | garK | Glycerate kinase I; Protein involved in carbohydrate catabolic process; Belongs to the glycerate kinase type-1 family. (381 aa) |
| | hldE | Heptose 7-phosphate kinase and heptose 1-phosphate adenyltransferase; Catalyzes the phosphorylation of D-glycero-D-manno-heptose 7- phosphate at the C-1 position to selectively form D-glycero-beta-D- manno-heptose-1,7-bisphosphate; In the N-terminal section; belongs to the carbohydrate kinase PfkB family. (477 aa) |
| | qseC | Quorum 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) |
| | cmtA | Putative mannitol-specific PTS IIB and IIC components; 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 CmtAB PTS system is involved in D-mannitol transport. (462 aa) |
| | fucK | L-fuculokinase; Catalyzes the phosphorylation of L-fuculose. Can also phosphorylate, with lower efficiency, D-ribulose, D-xylulose and D- fructose. (472 aa) |
| | barA | Hybrid sensory histidine kinase, in two-component regulatory system with UvrY; Member of the two-component regulatory system UvrY/BarA involved in the regulation of carbon metabolism via the CsrA/CsrB regulatory system. Phosphorylates UvrY, probably via a four-step phosphorelay. (918 aa) |
| | ygcE | Putative kinase; Belongs to the FGGY kinase family. (492 aa) |
| | cysC | Adenosine 5'-phosphosulfate kinase; Catalyzes the synthesis of activated sulfate. (201 aa) |
| | ascF | Cellobiose/arbutin/salicin-specific PTS enzymes, IIB and IC components; 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. This system is involved in arbutin, cellobiose, and salicin transport. (485 aa) |
| | srlB | Glucitol/sorbitol-specific enzyme IIA component of PTS; 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 SrlA, SrlB and SrlE is involved in glucitol/sorbitol transport. It can also use D-mannitol. (123 aa) |
| | srlE | Glucitol/sorbitol-specific enzyme IIB component of PTS; 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 SrlA, SrlB and SrlE is involved in glucitol/sorbitol transport. It can also use D-mannitol. (319 aa) |
| | nadK | NAD kinase; Involved in the regulation of the intracellular balance of NAD and NADP, and is a key enzyme in the biosynthesis of NADP. Catalyzes specifically the phosphorylation on 2'-hydroxyl of the adenosine moiety of NAD to yield NADP. It can use ATP and other nucleoside triphosphates (UTP, CTP, GTP, dATP, TTP) as phosphoryl donors, while nucleoside mono- or diphosphates and poly(P) can not. (292 aa) |
| | glrK | Sensor 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) |
| | narQ | Sensory 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) |
| | murP | N-acetylmuramic acid permease, EIIBC component, PTS system; 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. This system is involved in N-acetylmuramic acid (MurNAc) transport, yielding cytoplasmic MurNAc-6-P. Is responsible for growth on MurNAc as the sole source of carbon and energy. Is also able to take up anhydro-N- acetylmuramic acid (anhMurNAc), but cannot phosphorylate the carbon 6, [...] (474 aa) |
| | pdxK | Pyridoxal-pyridoxamine kinase/hydroxymethylpyrimidine kinase; B6-vitamer kinase involved in the salvage pathway of pyridoxal 5'-phosphate (PLP). Catalyzes the phosphorylation of pyridoxine (PN), pyridoxal (PL), and pyridoxamine (PM), forming their respective 5'-phosphorylated esters, i.e. PNP, PLP and PMP. Belongs to the pyridoxine kinase family. PdxK subfamily. (283 aa) |
| | glk | Glucokinase; Not highly important in E.coli as glucose is transported into the cell by the PTS system already as glucose 6-phosphate. (321 aa) |
| | fryB | Putative enzyme IIB component of PTS; 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 FryABC PTS system is involved in fructose transport. (108 aa) |
| | fryC | Putative enzyme IIC component of PTS; The phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitant with their translocation across the cell membrane. (415 aa) |
| | fryA | Putative PTS enzyme: Hpr, enzyme I and IIA components; Multifunctional protein that includes general (non sugar- specific) and sugar-specific components of the phosphoenolpyruvate- dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The enzyme II FryABC PTS system is involved in fructose transport. (831 aa) |
| | ypdA | Sensor kinase regulating yhjX; Member of the two-component regulatory system YpdA/YpdB, which is part of a nutrient-sensing regulatory network composed of YpdA/YpdB, the high-affinity pyruvate signaling system BtsS/BtsR and their respective target proteins, YhjX and BtsT. YpdA activates YpdB by phosphorylation in response to high concentrations of extracellular pyruvate. Activation of the YpdA/YpdB signaling cascade also promotes BtsS/BtsR-mediated btsT expression. (565 aa) |
| | evgS | Hybrid sensory histidine kinase in two-component regulatory system with EvgA; Member of the two-component regulatory system EvgS/EvgA. Phosphorylates EvgA via a four-step phosphorelay in response to environmental signals. (1197 aa) |
| | atoS | Sensory histidine kinase in two-component regulatory system with 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. AtoS is a membrane-associated kinase that phosphorylates and activates AtoC in response [...] (608 aa) |
| | rcsC | Hybrid 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) |
| | rcsD | Phosphotransfer 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) |
| | fruB | Fused fructose-specific PTS enzymes: IIA component/HPr 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 FruAB PTS system is involved in fructose transport. (376 aa) |
| | fruK | Fructose-1-phosphate kinase; Protein involved in glycolysis; Belongs to the carbohydrate kinase PfkB family. (312 aa) |
| | fruA | Fused fructose-specific PTS enzymes: IIBcomponent/IIC components; 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 FruAB PTS system is involved in fructose transport. (563 aa) |
| | psuK | Pseudouridine kinase; Catalyzes the phosphorylation of pseudouridine to pseudouridine 5'-phosphate (PsiMP). (313 aa) |
| | yeiI | Putative kinase; Belongs to the carbohydrate kinase PfkB family. (362 aa) |
| | yehU | Inner membrane putative sensory kinase in two-component system with YehT; Member of the two-component regulatory system BtsS/BtsR, which is part of a nutrient-sensing regulatory network composed of BtsS/BtsR, the low-affinity pyruvate signaling system YpdA/YpdB and their respective target proteins, BtsT and YhjX. Responds to depletion of nutrients, specifically serine, and the concomitant presence of extracellular pyruvate. BtsS is a high-affinity receptor for extracellular pyruvate that activates BtsR by phosphorylation. Activation of the BtsS/BtsR signaling cascade also suppresses Yp [...] (561 aa) |
| | thiM | Hydoxyethylthiazole kinase; Catalyzes the phosphorylation of the hydroxyl group of 4- methyl-5-beta-hydroxyethylthiazole (THZ); Belongs to the Thz kinase family. (262 aa) |
| | thiD | Hydroxy-methylpyrimidine kinase and hydroxy-phosphomethylpyrimidine kinase; Catalyzes the phosphorylation of hydroxymethylpyrimidine phosphate (HMP-P) to HMP-PP, and of HMP to HMP-P. Shows no activity with pyridoxal, pyridoxamine or pyridoxine. Belongs to the ThiD family. (266 aa) |
| | yegV | Putative kinase; Belongs to the carbohydrate kinase PfkB family. (321 aa) |
| | gatA | Galactitol-specific enzyme IIA component of PTS; The phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitant with their translocation across the cell membrane. The enzyme II complex composed of GatA, GatB and GatC is involved in galactitol transport. It can also use D-glucitol. (150 aa) |
| | gatB | PTS system galactitol-specific EIIB component; The phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitant with their translocation across the cell membrane. The enzyme II complex composed of GatA, GatB and GatC is involved in galactitol transport. It can also use D-glucitol. (94 aa) |
| | yegS | Phosphatidylglycerol kinase, metal-dependent; In vitro phosphorylates phosphatidylglycerol but not diacylglycerol; the in vivo substrate is unknown; Belongs to the diacylglycerol/lipid kinase family. YegS lipid kinase subfamily. (299 aa) |
