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ghrB | Glyoxylate/hydroxypyruvate reductase B; Catalyzes the NADPH-dependent reduction of glyoxylate and hydroxypyruvate into glycolate and glycerate, respectively. Can also reduce 2,5-diketo-D-gluconate (25DKG) to 5-keto-D-gluconate (5KDG), 2- keto-D-gluconate (2KDG) to D-gluconate, and 2-keto-L-gulonate (2KLG) to L-idonate (IA), but it is not its physiological function. Inactive towards 2-oxoglutarate, oxaloacetate, pyruvate, 5-keto-D-gluconate, D- fructose and L-sorbose. Activity with NAD is very low; Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family. GhrB subfamily. (324 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) | ||||
thrC | L-threonine synthase; Catalyzes the gamma-elimination of phosphate from L- phosphohomoserine and the beta-addition of water to produce L- threonine. To a lesser extent, is able to slowly catalyze the deamination of L-threonine into alpha-ketobutyrate and that of L-serine and 3-chloroalanine into pyruvate. Is also able to rapidly convert vinylglycine to threonine, which proves that the pyridoxal p-quinonoid of vinylglycine is an intermediate in the TS reaction. (428 aa) | ||||
aceE | Pyruvate dehydrogenase, decarboxylase component E1, thiamine triphosphate-binding; Component of the pyruvate dehydrogenase (PDH) complex, that catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). (887 aa) | ||||
aceF | Pyruvate dehydrogenase, dihydrolipoyltransacetylase component E2; The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3). (630 aa) | ||||
lpd | Dihydrolipoyl dehydrogenase; Lipoamide dehydrogenase is a component of the glycine cleavage system as well as of the alpha-ketoacid dehydrogenase complexes. (474 aa) | ||||
acnB | Aconitate hydratase 2; Involved in the catabolism of short chain fatty acids (SCFA) via the tricarboxylic acid (TCA)(acetyl degradation route) and the 2- methylcitrate cycle I (propionate degradation route). Catalyzes the reversible isomerization of citrate to isocitrate via cis-aconitate. Also catalyzes the hydration of 2-methyl-cis-aconitate to yield (2R,3S)-2-methylisocitrate. The apo form of AcnB functions as a RNA- binding regulatory protein. During oxidative stress inactive AcnB apo- enzyme without iron sulfur clusters binds the acnB mRNA 3' UTRs (untranslated regions), stabilize [...] (865 aa) | ||||
prpR | Propionate catabolism operon regulatory protein; Involved in the transcriptional regulation of the propionate catabolism operon. (528 aa) | ||||
hemB | 5-aminolevulinate dehydratase (porphobilinogen synthase); Catalyzes an early step in the biosynthesis of tetrapyrroles. Binds two molecules of 5-aminolevulinate per subunit, each at a distinct site, and catalyzes their condensation to form porphobilinogen; Belongs to the ALAD family. (324 aa) | ||||
gcl | Glyoxylate carboligase; Catalyzes the condensation of two molecules of glyoxylate to give 2-hydroxy-3-oxopropanoate (also termed tartronate semialdehyde). (593 aa) | ||||
glxR | Tartronate semialdehyde reductase, NADH-dependent; Protein involved in carbohydrate catabolic process, glycolate metabolic process and allantoin assimilation pathway; Belongs to the HIBADH-related family. (292 aa) | ||||
gltA | Citrate synthase; Protein involved in tricarboxylic acid cycle and anaerobic respiration; Belongs to the citrate synthase family. (427 aa) | ||||
sdhA | Succinate dehydrogenase, flavoprotein subunit; Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth. (588 aa) | ||||
sucA | 2-oxoglutarate decarboxylase, thiamine triphosphate-binding; E1 component of the 2-oxoglutarate dehydrogenase (OGDH) complex which catalyzes the decarboxylation of 2-oxoglutarate, the first step in the conversion of 2-oxoglutarate to succinyl-CoA and CO(2). (933 aa) | ||||
lrp | Leucine-responsive global transcriptional regulator; Mediates a global response to leucine. Exogenous leucine affects the expression of a number of different operons; lrp mediates this effect for at least some of these operons. For example it is regulator of the branched-chain amino acid transport genes. (164 aa) | ||||
pflB | Formate acetyltransferase 1; Protein involved in anaerobic respiration and cellular amino acid catabolic process. (760 aa) | ||||
aspC | Aspartate aminotransferase, PLP-dependent; Aspartate aminotransferase; Protein involved in cellular amino acid catabolic process and aspartate biosynthetic process. (396 aa) | ||||
ghrA | Glyoxylate/hydroxypyruvate reductase A; Catalyzes the NADPH-dependent reduction of glyoxylate and hydroxypyruvate into glycolate and glycerate, respectively. Inactive towards 2-oxo-D-gluconate, 2-oxoglutarate, oxaloacetate and pyruvate. Only D- and L-glycerate are involved in the oxidative activity with NADP. Activity with NAD is very low. (312 aa) | ||||
rne | Endoribonuclease; Endoribonuclease that plays a central role in RNA processing and decay. Required for the maturation of 5S and 16S rRNAs and the majority of tRNAs. Also involved in the degradation of most mRNAs. Can also process other RNA species, such as RNAI, a molecule that controls the replication of ColE1 plasmid, and the cell division inhibitor DicF- RNA. It initiates the decay of RNAs by cutting them internally near their 5'-end. It is able to remove poly(A) tails by an endonucleolytic process. Required to initiate rRNA degradation during both starvation and quality control; ac [...] (1061 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) | ||||
icd | Isocitrate dehydrogenase, specific for NADP+; Protein involved in tricarboxylic acid cycle and anaerobic respiration; Belongs to the isocitrate and isopropylmalate dehydrogenases family. (416 aa) | ||||
fadR | Fatty acid metabolism regulon transcriptional regulator; Multifunctional regulator of fatty acid metabolism. Represses transcription of at least eight genes required for fatty acid transport and beta-oxidation including fadA, fadB, fadD, fadL and fadE. Activates transcription of at least three genes required for unsaturated fatty acid biosynthesis: fabA, fabB and iclR, the gene encoding the transcriptional regulator of the aceBAK operon encoding the glyoxylate shunt enzymes. (239 aa) | ||||
adhE | Acetaldehyde dehydrogenase [acetylating]; This enzyme has three activities: ADH, ACDH, and PFL- deactivase. In aerobic conditions it acts as a hydrogen peroxide scavenger. The PFL deactivase activity catalyzes the quenching of the pyruvate-formate-lyase catalyst in an iron, NAD, and CoA dependent reaction; In the N-terminal section; belongs to the aldehyde dehydrogenase family. (891 aa) | ||||
ldhA | Fermentative D-lactate dehydrogenase, NAD-dependent; Fermentative lactate dehydrogenase; Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family. (329 aa) | ||||
aldA | Aldehyde dehydrogenase A, NAD-linked; Acts on lactaldehyde as well as other aldehydes. (479 aa) | ||||
gadC | Glutamate:gamma-aminobutyric acid antiporter; Involved in glutamate-dependent acid resistance. Imports glutamate inside the cell while simultaneously exporting to the periplasm the GABA produced by GadA and GadB. The gad system helps to maintain a near-neutral intracellular pH when cells are exposed to extremely acidic conditions. The ability to survive transit through the acidic conditions of the stomach is essential for successful colonization of the mammalian host by commensal and pathogenic bacteria; Belongs to the amino acid-polyamine-organocation (APC) superfamily. Glutamate:GABA [...] (511 aa) | ||||
gadB | Glutamate decarboxylase B, PLP-dependent; Converts glutamate to gamma-aminobutyrate (GABA), consuming one intracellular proton in the reaction. The gad system helps to maintain a near-neutral intracellular pH when cells are exposed to extremely acidic conditions. The ability to survive transit through the acidic conditions of the stomach is essential for successful colonization of the mammalian host by commensal and pathogenic bacteria; Belongs to the group II decarboxylase family. (466 aa) | ||||
pykF | Pyruvate kinase I (formerly F), fructose stimulated; Protein involved in glycolysis, fermentation and anaerobic respiration. (470 aa) | ||||
gdhA | Glutamate dehydrogenase, NADP-specific; Catalyzes the reversible oxidative deamination of glutamate to alpha-ketoglutarate and ammonia; Belongs to the Glu/Leu/Phe/Val dehydrogenases family. (447 aa) | ||||
eda | KHG/KDPG aldolase; Involved in the degradation of glucose via the Entner- Doudoroff pathway. Catalyzes the reversible, stereospecific retro-aldol cleavage of 2-Keto-3-deoxy-6-phosphogluconate (KDPG) to pyruvate and D- glyceraldehyde-3-phosphate. In the synthetic direction, it catalyzes the addition of pyruvate to electrophilic aldehydes with si-facial selectivity. It accepts some nucleophiles other than pyruvate, including 2-oxobutanoate, phenylpyruvate, and fluorobutanoate. It has a preference for the S-configuration at C2 of the electrophile. (213 aa) | ||||
edd | 6-phosphogluconate dehydratase; Catalyzes the dehydration of 6-phospho-D-gluconate to 2- dehydro-3-deoxy-6-phospho-D-gluconate. (603 aa) | ||||
yebK | Putative DNA-binding transcriptional regulator; Represses the expression of the hex regulon (zwf, eda, glp and gap). (289 aa) | ||||
pykA | Pyruvate kinase II, glucose stimulated; Protein involved in glycolysis, fermentation and anaerobic respiration. (480 aa) | ||||
mqo | Malate dehydrogenase, FAD/NAD(P)-binding domain; Protein involved in tricarboxylic acid cycle. (548 aa) | ||||
ackA | Acetate kinase A and propionate kinase 2; Catalyzes the formation of acetyl phosphate from acetate and ATP. Can also catalyze the reverse reaction. During anaerobic growth of the organism, this enzyme is also involved in the synthesis of most of the ATP formed catabolically; Belongs to the acetokinase family. (400 aa) | ||||
pta | Phosphate acetyltransferase; Involved in acetate metabolism. Catalyzes the reversible interconversion of acetyl-CoA and acetyl phosphate. The direction of the overall reaction changes depending on growth conditions. On minimal medium acetyl-CoA is generated. In rich medium acetyl-CoA is converted to acetate and allowing the cell to dump the excess of acetylation potential in exchange for energy in the form of ATP. In the N-terminal section; belongs to the CobB/CobQ family. (714 aa) | ||||
galP | D-galactose transporter; Uptake of galactose across the boundary membrane with the concomitant transport of protons into the cell (symport system); Belongs to the major facilitator superfamily. Sugar transporter (TC 2.A.1.1) family. (464 aa) | ||||
bacA | Undecaprenyl pyrophosphate phosphatase; Catalyzes the dephosphorylation of undecaprenyl diphosphate (UPP). Confers resistance to bacitracin; Belongs to the UppP family. (273 aa) | ||||
tdcE | Pyruvate formate-lyase 4/2-ketobutyrate formate-lyase; Catalyzes the cleavage of 2-ketobutyrate to propionyl-CoA and formate. It can also use pyruvate as substrate. Belongs to the glycyl radical enzyme (GRE) family. PFL subfamily. (764 aa) | ||||
rpsD | 30S ribosomal subunit protein S4; One of two assembly initiator proteins for the 30S subunit, it binds directly to 16S rRNA where it nucleates assembly of the body of the 30S subunit. Plays a role in mRNA unwinding by the ribosome, possibly by forming part of a processivity clamp. Also functions as a rho-dependent antiterminator of rRNA transcription, increasing the synthesis of rRNA under conditions of excess protein, allowing a more rapid return to homeostasis. Binds directly to RNA polymerase; Belongs to the universal ribosomal protein uS4 family. (206 aa) | ||||
asd | Aspartate-semialdehyde dehydrogenase, NAD(P)-binding; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate. (367 aa) | ||||
ppc | Phosphoenolpyruvate carboxylase; Forms oxaloacetate, a four-carbon dicarboxylic acid source for the tricarboxylic acid cycle. (883 aa) | ||||
fabR | Transcriptional repressor of fabA and fabB; Binds the promoter region of at least fabA and fabB, but probably not yqfA. Represses the transcription of fabA and fabB, involved in unsaturated fatty acid (UFA) biosynthesis. By controlling UFA production, FabR directly influences the physical properties of the membrane bilayer. (215 aa) | ||||
aceB | Malate synthase A; Protein involved in glyoxylate cycle. (533 aa) | ||||
aceA | Isocitrate lyase; Involved in the metabolic adaptation in response to environmental changes. Catalyzes the reversible formation of succinate and glyoxylate from isocitrate, a key step of the glyoxylate cycle, which operates as an anaplerotic route for replenishing the tricarboxylic acid cycle during growth on fatty acid substrates. (434 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) | ||||
iclR | Transcriptional repressor; Regulation of the glyoxylate bypass operon (aceBAK), which encodes isocitrate lyase, malate synthase as well as isocitrate dehydrogenase kinase/phosphorylase. Glyoxylate disrupts the interaction with the promoter by favoring the inactive dimeric form. Pyruvate enhances promoter binding by stabilizing the tetrameric form. (274 aa) | ||||
lysC | Lysine-sensitive aspartokinase 3; Aspartokinase III, lysine sensitive; Protein involved in lysine biosynthetic process via diaminopimelate and homoserine biosynthetic process. (449 aa) | ||||
acs | acetyl-CoA synthetase; Catalyzes the conversion of acetate into acetyl-CoA (AcCoA), an essential intermediate at the junction of anabolic and catabolic pathways. Acs undergoes a two-step reaction. In the first half reaction, Acs combines acetate with ATP to form acetyl-adenylate (AcAMP) intermediate. In the second half reaction, it can then transfer the acetyl group from AcAMP to the sulfhydryl group of CoA, forming the product AcCoA. (652 aa) | ||||
thrA | Bifunctional: aspartokinase I (N-terminal); homoserine dehydrogenase I (C-terminal); Protein involved in threonine biosynthetic process, methionine biosynthetic process and homoserine biosynthetic process. (820 aa) |