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| dut | Deoxyuridine 5'-triphosphate nucleotidohydrolase; This enzyme is involved in nucleotide metabolism: it produces dUMP, the immediate precursor of thymidine nucleotides and it decreases the intracellular concentration of dUTP so that uracil cannot be incorporated into DNA; Belongs to the dUTPase family. (150 aa) | ||||
| pyrD | Dihydroorotate oxidase A; Catalyzes the conversion of dihydroorotate to orotate with quinone as electron acceptor; Belongs to the dihydroorotate dehydrogenase family. Type 2 subfamily. (337 aa) | ||||
| carA | TIGRFAM: carbamoyl-phosphate synthase, small subunit; PFAM: glutamine amidotransferase class-I; Carbamoyl-phosphate synthase, small chain; KEGG: tbd:Tbd_1127 carbamoyl-phosphate synthase, small subunit; COGs: COG0505 Carbamoylphosphate synthase small subunit category=F; Belongs to the CarA family. (376 aa) | ||||
| carB | TIGRFAM: carbamoyl-phosphate synthase, large subunit; PFAM: Carbamoyl-phosphate synthase L chain, ATP-binding; Carbamoyl-phosphate synthetase large chain, oligomerisation; Carbamoyl-phosphate synthetase large chain domain protein; MGS domain protein; KEGG: tbd:Tbd_1128 carbamoyl-phosphate synthase, large subunit, glutamine-dependent; COGs: COG0458 Carbamoylphosphate synthase large subunit (split gene in MJ) category=F; Belongs to the CarB family. (1068 aa) | ||||
| thyA1 | Thymidylate synthase; Catalyzes the reductive methylation of 2'-deoxyuridine-5'- monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by- product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis. (264 aa) | ||||
| dcd | Deoxycytidine triphosphate deaminase; Catalyzes the deamination of dCTP to dUTP. (188 aa) | ||||
| pyrF | Orotidine 5'-phosphate decarboxylase; Catalyzes the decarboxylation of orotidine 5'-monophosphate (OMP) to uridine 5'-monophosphate (UMP); Belongs to the OMP decarboxylase family. Type 1 subfamily. (232 aa) | ||||
| cmk | TIGRFAM: cytidylate kinase; PRIAM: Cytidylate kinase; PFAM: cytidylate kinase region; KEGG: dar:Daro_1279 cytidylate kinase:3-phosphoshikimate 1-carboxyvinyltransferase; COGs: COG0283 Cytidylate kinase category=F. (226 aa) | ||||
| Mfla_1223 | Ribonucleoside-diphosphate reductase class Ia alpha subunit; Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides. (774 aa) | ||||
| Mfla_1224 | PRIAM: Ribonucleoside-diphosphate reductase; PFAM: ribonucleotide reductase; KEGG: ngo:NGO0615 putative ribonucleoside diphosphate reductase I beta chain; COGs: COG0208 Ribonucleotide reductase beta subunit category=F. (377 aa) | ||||
| tmk | Thymidylate kinase; Phosphorylation of dTMP to form dTDP in both de novo and salvage pathways of dTTP synthesis; Belongs to the thymidylate kinase family. (203 aa) | ||||
| pyrH | Uridylate kinase; Catalyzes the reversible phosphorylation of UMP to UDP. (238 aa) | ||||
| ndk | Nucleoside diphosphate kinase; Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate; Belongs to the NDK family. (141 aa) | ||||
| ppnP | Protein of unknown function DUF1255; Catalyzes the phosphorolysis of diverse nucleosides, yielding D-ribose 1-phosphate and the respective free bases. Can use uridine, adenosine, guanosine, cytidine, thymidine, inosine and xanthosine as substrates. Also catalyzes the reverse reactions. (103 aa) | ||||
| surE | 3'-nucleotidase; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family. (247 aa) | ||||
| pyrG | CTP synthase; Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen. Regulates intracellular CTP levels through interactions with the four ribonucleotide triphosphates. (542 aa) | ||||
| Mfla_2101 | Phosphoribosyltransferase. (174 aa) | ||||
| pyrB | TIGRFAM: aspartate carbamoyltransferase; PFAM: aspartate/ornithine carbamoyltransferase, Asp/Orn-binding region; aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain; KEGG: tbd:Tbd_2582 aspartate carbamoyltransferase; COGs: COG0540 Aspartate carbamoyltransferase catalytic chain category=F; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family. (317 aa) | ||||
| Mfla_2103 | TIGRFAM: dihydroorotase, multifunctional complex type; PFAM: amidohydrolase; KEGG: neu:NE1664 dihydroorotase; COGs: COG0044 Dihydroorotase and related cyclic amidohydrolases category=F. (424 aa) | ||||
| pyrC | Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate. (345 aa) | ||||
| pyrE | Orotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP). (196 aa) | ||||
| Mfla_2541 | Ribonucleoside-diphosphate reductase; Catalyzes the reduction of ribonucleotides to deoxyribonucleotides. May function to provide a pool of deoxyribonucleotide precursors for DNA repair during oxygen limitation and/or for immediate growth after restoration of oxygen. (719 aa) | ||||