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surE surE ybeK ybeK cmk cmk pyrD pyrD hpaC hpaC pyrC pyrC tmk tmk ycfN ycfN pyrF pyrF tdk tdk dcd dcd udk udk thiD thiD thiM thiM cdd cdd STM2755 STM2755 preT preT yeiA yeiA upp upp ndk ndk asrB asrB yjjX yjjX deoA deoA pyrL pyrL pyrB pyrB pyrI pyrI STM4421 STM4421 sgaH sgaH rihC rihC carA carA carB carB pyrH pyrH thiL thiL dxs dxs thiI thiI thiC thiC thiE thiE thiG thiG thiH thiH udp udp pyrE pyrE dut dut sgbH sgbH thyA thyA STM3334 STM3334 mazG mazG pyrG pyrG
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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
white nodes:
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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surESurvival protein, protein damage control; Nucleotidase with a broad substrate specificity as it can dephosphorylate various ribo- and deoxyribonucleoside 5'-monophosphates and ribonucleoside 3'-monophosphates with highest affinity to 3'-AMP. Also hydrolyzes polyphosphate (exopolyphosphatase activity) with the preference for short-chain-length substrates (P20-25). Might be involved in the regulation of dNTP and NTP pools, and in the turnover of 3'-mononucleotides produced by numerous intracellular RNases (T1, T2, and F) during the degradation of various RNAs. (253 aa)
ybeKPutative purine nucleoside hydrolase; Hydrolyzes cytidine or uridine to ribose and cytosine or uracil, respectively. (311 aa)
cmkCytidine monophosphate (CMP) kinase; Similar to E. coli cytidylate kinase (AAC73996.1); Blastp hit to AAC73996.1 (227 aa), 97% identity in aa 1 - 227. (227 aa)
pyrDDihydro-orotate oxidase; Catalyzes the conversion of dihydroorotate to orotate with quinone as electron acceptor; Belongs to the dihydroorotate dehydrogenase family. Type 2 subfamily. (336 aa)
hpaC4-hydroxyphenylacetate catabolism protein; Catalyzes the reduction of free flavins (FMN, FAD and riboflavin) by NADH. Subsequently, the reduced flavins diffuse to the large HpaB component or to other electron acceptors such as cytochrome c and Fe(3+) ion (By similarity); Belongs to the non-flavoprotein flavin reductase family. HpaC subfamily. (170 aa)
pyrCDihydro-orotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate. (348 aa)
tmkThymidylate kinase; Phosphorylation of dTMP to form dTDP in both de novo and salvage pathways of dTTP synthesis; Belongs to the thymidylate kinase family. (213 aa)
ycfNPutative cytoplasmic protein; Catalyzes the phosphorylation of thiamine to thiamine phosphate. (274 aa)
pyrFOrotidine-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. (245 aa)
tdkSimilar to E. coli thymidine kinase (AAC74320.1); Blastp hit to AAC74320.1 (205 aa), 92% identity in aa 1 - 204. (205 aa)
dcddUTPase; Catalyzes the deamination of dCTP to dUTP. (193 aa)
udkSimilar to E. coli uridine/cytidine kinase (AAC75127.1); Blastp hit to AAC75127.1 (231 aa), 95% identity in aa 19 - 231. (213 aa)
thiDHydroxy-phosphomethylpyrimidine kinase (HMP-P kinase); Catalyzes the phosphorylation of hydroxymethylpyrimidine phosphate (HMP-P) to HMP-PP, and of HMP to HMP-P. Belongs to the ThiD family. (266 aa)
thiMHydoxyethylthiazole kinase (THZ kinase); Catalyzes the phosphorylation of the hydroxyl group of 4- methyl-5-beta-hydroxyethylthiazole (THZ); Belongs to the Thz kinase family. (265 aa)
cddCytidine/deoxycytidine deaminase; This enzyme scavenges exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis. (294 aa)
STM2755Similar to E. coli probable hexulose-6-phosphate synthase (AAC77153.1); Blastp hit to AAC77153.1 (216 aa), 33% identity in aa 6 - 213. (211 aa)
preTPutative NADPH-dependent glutamate synthase beta chain or related oxidoreductase; Involved in pyrimidine base degradation. Catalyzes physiologically the reduction of uracil to 5,6-dihydrouracil (DHU) by using NADH as a specific cosubstrate. It also catalyzes the reverse reaction and the reduction of thymine to 5,6-dihydrothymine (DHT) (By similarity). (413 aa)
yeiAPutative dihydropyrimidine dehydrogenase; Involved in pyrimidine base degradation. Catalyzes physiologically the reduction of uracil to 5,6-dihydrouracil (DHU) by using NADH as a specific cosubstrate. It also catalyzes the reverse reaction and the reduction of thymine to 5,6-dihydrothymine (DHT) (By similarity). (411 aa)
uppUracil phosphoribosyltransferase; Catalyzes the conversion of uracil and 5-phospho-alpha-D- ribose 1-diphosphate (PRPP) to UMP and diphosphate. (208 aa)
ndkNucleoside 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. (143 aa)
asrBAnaerobic sulfide reductase; This enzyme catalyzes the hydrogen sulfide production from sulfite. It is strictly anaerobic. It is regulated by electron acceptors rather than by cysteine. (272 aa)
yjjXPutative cytoplasmic protein; Phosphatase that hydrolyzes non-canonical purine nucleotides such as XTP and ITP to their respective diphosphate derivatives. Probably excludes non-canonical purines from DNA/RNA precursor pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. (171 aa)
deoAThymidine phosphorylase; The enzymes which catalyze the reversible phosphorolysis of pyrimidine nucleosides are involved in the degradation of these compounds and in their utilization as carbon and energy sources, or in the rescue of pyrimidine bases for nucleotide synthesis. Belongs to the thymidine/pyrimidine-nucleoside phosphorylase family. (440 aa)
pyrLPyrbi operon leader peptide (attenuator). (SW:LPPY_SALTY). (33 aa)
pyrBAspartate carbamoyltransferase catalytic chain. (SW:PYRB_SALTY). (311 aa)
pyrIAspartate carbamoyltransferase, regulatory subunit; Involved in allosteric regulation of aspartate carbamoyltransferase. (153 aa)
STM4421Similar to E. coli phenylacetaldehyde dehydrogenase (AAC74467.1); Blastp hit to AAC74467.1 (500 aa), 34% identity in aa 22 - 500. (501 aa)
sgaHPutative hexulose phosphate synthase; Catalyzes the decarboxylation of 3-keto-L-gulonate-6-P into L-xylulose-5-P. Is involved in the anaerobic L-ascorbate utilization. Belongs to the HPS/KGPDC family. KGPDC subfamily. (216 aa)
rihCPutative purine nucleoside hydrolase; Hydrolyzes both purine and pyrimidine ribonucleosides with a broad-substrate specificity. (306 aa)
carACarbamoyl-phosphate synthetase, glutamine-hydrolysing small subunit; Carbamoyl-phosphate synthase small chain. (SW:CARA_SALTY); Belongs to the CarA family. (382 aa)
carBCarbamoyl-phosphate synthase large chain. (SW:CARB_SALTY). (1075 aa)
pyrHUridylate kinase; Catalyzes the reversible phosphorylation of UMP to UDP. (241 aa)
thiLThiamin-monophosphate kinase; Catalyzes the ATP-dependent phosphorylation of thiamine- monophosphate (TMP) to form thiamine-pyrophosphate (TPP), the active form of vitamin B1. (325 aa)
dxs1-deoxyxylulose-5-phosphate synthase; Catalyzes the acyloin condensation reaction between C atoms 2 and 3 of pyruvate and glyceraldehyde 3-phosphate to yield 1-deoxy-D- xylulose-5-phosphate (DXP); Belongs to the transketolase family. DXPS subfamily. (620 aa)
thiISulfur transfer protein (from cys to ThiS and from IscS to U8-tRNA); Catalyzes the ATP-dependent transfer of a sulfur to tRNA to produce 4-thiouridine in position 8 of tRNAs, which functions as a near-UV photosensor. Also catalyzes the transfer of sulfur to the sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a step in the synthesis of thiazole, in the thiamine biosynthesis pathway. The sulfur is donated as persulfide by IscS. (482 aa)
thiC5'-phosphoryl-5-aminoimidazole; Catalyzes the synthesis of the hydroxymethylpyrimidine phosphate (HMP-P) moiety of thiamine from aminoimidazole ribotide (AIR) in a radical S-adenosyl-L-methionine (SAM)-dependent reaction. (631 aa)
thiEThiamin phosphate synthase; Condenses 4-methyl-5-(beta-hydroxyethyl)thiazole monophosphate (THZ-P) and 2-methyl-4-amino-5-hydroxymethyl pyrimidine pyrophosphate (HMP-PP) to form thiamine monophosphate (TMP). Belongs to the thiamine-phosphate synthase family. (211 aa)
thiGThiamin biosynthesis protein, thiazole moiety; Catalyzes the rearrangement of 1-deoxy-D-xylulose 5-phosphate (DXP) to produce the thiazole phosphate moiety of thiamine. Sulfur is provided by the thiocarboxylate moiety of the carrier protein ThiS. In vitro, sulfur can be provided by H(2)S. (256 aa)
thiHThiamin biosynthesis protein, thiazole moiety; Catalyzes the radical-mediated cleavage of tyrosine to 2- iminoacetate and 4-cresol; Belongs to the radical SAM superfamily. ThiH family. (377 aa)
udpUridine phosphorylase; Catalyzes the reversible phosphorylytic cleavage of uridine and deoxyuridine to uracil and ribose- or deoxyribose-1-phosphate. The produced molecules are then utilized as carbon and energy sources or in the rescue of pyrimidine bases for nucleotide synthesis (By similarity). (253 aa)
pyrEOrotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP). (213 aa)
dutDeoxyuridinetriphosphatase; 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. (151 aa)
sgbHPutative 3-hexulose-6-phosphate isomerase; Similar to E. coli probable 3-hexulose 6-phosphate synthase (AAC76605.1); Blastp hit to AAC76605.1 (220 aa), 90% identity in aa 1 - 220. (220 aa)
thyAThymidylate synthetase; 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)
STM3334Similar to E. coli cytosine deaminase (AAC73440.1); Blastp hit to AAC73440.1 (427 aa), 83% identity in aa 1 - 427. (426 aa)
mazGPutative pyrophosphatase; Similar to E. coli orf, hypothetical protein (AAC75823.1); Blastp hit to AAC75823.1 (263 aa), 93% identity in aa 2 - 263. (266 aa)
pyrGCTP synthetase; 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. (545 aa)
Your Current Organism:
Salmonella enterica Typhimurium
NCBI taxonomy Id: 99287
Other names: S. enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium LT2, Salmonella enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2-LTL2, Salmonella typhimurium LT2
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