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rpoH rpoH dapF dapF metJ metJ metL metL metF metF katG katG oxyR oxyR birA birA thiH thiH thiF thiF thiE thiE lysC lysC zur zur soxS soxS soxR soxR yjeA yjeA exbD exbD metK metK lysA lysA grpE grpE dapA dapA dapE dapE lysP lysP cbiD cbiD cbiG cbiG cbiJ cbiJ cbiK cbiK cbiL cbiL tonB tonB purR purR ribE ribE clpA clpA hcp hcp bioD bioD bioF bioF bioA bioA ahpC ahpC clpX clpX clpP clpP ribD ribD dapD dapD dapB dapB dnaJ dnaJ dnaK dnaK thrA thrA crp crp bioH bioH asd asd nikR nikR metC metC exbB exbB
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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
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a 3D structure is known or predicted
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experimentally determined
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rpoHSigma H factor of RNA polymerase; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is involved in regulation of expression of heat shock genes. (284 aa)
dapFDiaminopimelate epimerase; Catalyzes the stereoinversion of LL-2,6-diaminoheptanedioate (L,L-DAP) to meso-diaminoheptanedioate (meso-DAP), a precursor of L- lysine and an essential component of the bacterial peptidoglycan. (275 aa)
metJTranscriptional repressor of all met genes but metF; This regulatory protein, when combined with SAM (S- adenosylmethionine) represses the expression of the methionine regulon and of enzymes involved in SAM synthesis. It is also autoregulated (By similarity); Belongs to the MetJ family. (105 aa)
metLAspartokinase II; Bifunctional; similar to E. coli aspartokinase II and homoserine dehydrogenase II (AAC76922.1); Blastp hit to AAC76922.1 (810 aa), 94% identity in aa 1 - 810; In the C-terminal section; belongs to the homoserine dehydrogenase family. (810 aa)
metF5,10-methylenetetrahydrofolate reductase. (SW:METF_SALTY); Belongs to the methylenetetrahydrofolate reductase family. (296 aa)
katGCatalase; Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity; Belongs to the peroxidase family. Peroxidase/catalase subfamily. (726 aa)
oxyRRegulatory protein sensor for oxidative stress; Regulates intracellular hydrogen peroxide (LysR family); similar to E. coli activator, hydrogen peroxide-inducible genes (AAC76943.1); Blastp hit to AAC76943.1 (305 aa), 95% identity in aa 1 - 305; Belongs to the LysR transcriptional regulatory family. (305 aa)
birAbiotin-[acetylCoA carboxylase] holoenzyme synthetase; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon. (320 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)
thiFThiamin biosynthesis protein, thiazole moiety; Catalyzes the adenylation of thisS as part of thiazole synthesis; with ThiI it catalyses the transfer of sulfur from cysteine to the ThiS enzyme; similar to E. coli thiamin biosynthesis, thiazole moiety (AAC76966.1); Blastp hit to AAC76966.1 (245 aa), 84% identity in aa 1 - 245. (252 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)
lysCSimilar to E. coli aspartokinase III, lysine sensitive (AAC76994.1); Blastp hit to AAC76994.1 (449 aa), 93% identity in aa 1 - 449; Belongs to the aspartokinase family. (449 aa)
zurTranscriptional repressor of znuABC operon; Fur family; similar to E. coli putative regulator (AAC77016.1); Blastp hit to AAC77016.1 (191 aa), 92% identity in aa 21 - 191; Belongs to the Fur family. (171 aa)
soxSTranscriptional activator of superoxide response regulon; Transcriptional activator of the superoxide response regulon of E.coli that includes at least 10 genes such as sodA, nfo, zwf and micF. Binds the DNA sequence 5'-GCACN(7)CAA-3'. It also facilitates the subsequent binding of RNA polymerase to the micF and the nfo promoters (By similarity). (107 aa)
soxRRedox-sensing transcriptional activator SoxR; Activates the transcription of the soxS gene which itself controls the superoxide response regulon. SoxR contains a 2Fe-2S iron- sulfur cluster that may act as a redox sensor system that recognizes superoxide. The variable redox state of the Fe-S cluster is employed in vivo to modulate the transcriptional activity of SoxR in response to specific types of oxidative stress (By similarity). (152 aa)
yjeAPutative pyruvate oxidase; With EpmB is involved in the beta-lysylation step of the post-translational modification of translation elongation factor P (EF- P) on 'Lys-34'. Catalyzes the ATP-dependent activation of (R)-beta- lysine produced by EpmB, forming a lysyl-adenylate, from which the beta-lysyl moiety is then transferred to the epsilon-amino group of EF- P 'Lys-34' (Probable). Can also use L-alpha-lysine as a substrate, but probably with lower efficiency. Cannot aminoacylate tRNA(Lys) with lysine. (325 aa)
exbDtonB-dependent uptake of B colicins; similar to E. coli uptake of enterochelin; tonB-dependent uptake of B colicins (AAC76041.1); Blastp hit to AAC76041.1 (141 aa), 93% identity in aa 1 - 141. (141 aa)
metKMethionine adenosyltransferase 1; 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. (384 aa)
lysADiaminopimelate decarboxylase; Specifically catalyzes the decarboxylation of meso- diaminopimelate (meso-DAP) to L-lysine. (420 aa)
grpEMolecular chaparone; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-depe [...] (196 aa)
dapADihydrodipicolinate synthase; Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA). (292 aa)
dapEN-succinyl-diaminopimelate deacylase; Catalyzes the hydrolysis of N-succinyl-L,L-diaminopimelic acid (SDAP), forming succinate and LL-2,6-diaminoheptanedioate (DAP), an intermediate involved in the bacterial biosynthesis of lysine and meso-diaminopimelic acid, an essential component of bacterial cell walls. Can also hydrolyze all N-terminal Asp dipeptides except Asp-Pro. Asp-Ser is the best substrate, followed by Asp-Gly, Asp-Leu, and Asp- Cys; Belongs to the peptidase M20A family. DapE subfamily. (375 aa)
lysPSimilar to E. coli lysine-specific permease (AAC75217.1); Blastp hit to AAC75217.1 (489 aa), 94% identity in aa 1 - 489. (489 aa)
cbiDSynthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the methylation of C-1 in cobalt-precorrin-5B to form cobalt-precorrin-6A. (379 aa)
cbiGSynthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the hydrolysis of the ring A acetate delta-lactone of cobalt-precorrin-5A resulting in the loss of the C-20 carbon and its attached methyl group in the form of acetaldehyde. (351 aa)
cbiJSynthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the reduction of the macrocycle of cobalt- precorrin-6A to cobalt-precorrin-6B. (263 aa)
cbiKSynthesis of vitamin B12 adenosyl cobalamide precursor; Catalyzes the insertion of Co(2+) into sirohydrochlorin as part of the anaerobic pathway to cobalamin biosynthesis; Belongs to the CbiK family. (264 aa)
cbiLSynthesis of vitamin B12 adenosyl cobalamide precursor; Methylates cobalt-precorrin-2 at the C-20 position to produce cobalt-precorrin-3A in the anaerobic cobalamin biosynthesis pathway. (237 aa)
tonBTonB; Interacts with outer membrane receptor proteins that carry out high-affinity binding and energy dependent uptake into the periplasmic space of specific substrates such as cobalamin, and various iron compounds (such as iron dicitrate, enterochelin, aerobactin, etc.). In the absence of TonB these receptors bind their substrates but do not carry out active transport. TonB also interacts with some colicins and is involved in the energy-dependent, irreversible steps of bacteriophages phi 80 and T1 infection. It could act to transduce energy from the cytoplasmic membrane to specific en [...] (242 aa)
purRTranscriptional repressor for pur regulon, glyA, glnB, prsA, speA (GalR/LacI family); Is the main repressor of the genes involved in the de novo synthesis of purine nucleotides, regulating purB, purC, purEK, purF, purHD, purL, purMN and guaBA expression. PurR is allosterically activated to bind its cognate DNA by binding the purine corepressors, hypoxanthine or guanine, thereby effecting transcription repression. (341 aa)
ribESimilar to E. coli riboflavin synthase, alpha chain (AAC74734.1); Blastp hit to AAC74734.1 (213 aa), 90% identity in aa 1 - 208. (213 aa)
clpASimilar to E. coli ATP-binding component of serine protease (AAC73969.1); Blastp hit to AAC73969.1 (758 aa), 97% identity in aa 1 - 758; Belongs to the ClpA/ClpB family. (758 aa)
hcpHybrid cluster protein; Catalyzes the reduction of hydroxylamine to form NH(3) and H(2)O. (550 aa)
bioDDethiobiotin synthetase; Catalyzes a mechanistically unusual reaction, the ATP- dependent insertion of CO2 between the N7 and N8 nitrogen atoms of 7,8- diaminopelargonic acid (DAPA) to form an ureido ring. Belongs to the dethiobiotin synthetase family. (228 aa)
bioF7-keto-8-aminopelargonic acid synthetase; Catalyzes the decarboxylative condensation of pimeloyl-[acyl- carrier protein] and L-alanine to produce 8-amino-7-oxononanoate (AON), [acyl-carrier protein], and carbon dioxide. (385 aa)
bioA7,8-diaminopelargonic acid synthetase; Catalyzes the transfer of the alpha-amino group from S- adenosyl-L-methionine (SAM) to 7-keto-8-aminopelargonic acid (KAPA) to form 7,8-diaminopelargonic acid (DAPA). It is the only animotransferase known to utilize SAM as an amino donor; Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family. BioA subfamily. (429 aa)
ahpCAlkyl hydroperoxide reductase, C22 subunit; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides; Belongs to the peroxiredoxin family. AhpC/Prx1 subfamily. (187 aa)
clpXSpecificity component of clpA-clpP ATP-dependent serine protease, chaperone; ATP-dependent specificity component of the Clp protease. It directs the protease to specific substrates. Can perform chaperone functions in the absence of ClpP. (423 aa)
clpPProteolytic subunit of clpA-clpP ATP-dependent serine protease; Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins. Belongs to the peptidase S14 family. (207 aa)
ribDPyrimidine deaminase; Converts 2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'- phosphate into 5-amino-6-(ribosylamino)-2,4(1h,3h)-pyrimidinedione 5'- phosphate; In the C-terminal section; belongs to the HTP reductase family. (367 aa)
dapDSimilar to E. coli 2,3,4,5-tetrahydropyridine-2-carboxylate N-succinyltransferase (AAC73277.1); Blastp hit to AAC73277.1 (274 aa), 97% identity in aa 1 - 274; Belongs to the transferase hexapeptide repeat family. (274 aa)
dapBDihydrodipicolinate reductase; Catalyzes the conversion of 4-hydroxy-tetrahydrodipicolinate (HTPA) to tetrahydrodipicolinate; Belongs to the DapB family. (273 aa)
dnaJHeat shock protein DnaJ; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent interactions between DnaJ, [...] (379 aa)
dnaKChaperone Hsp70; Acts as a chaperone. (638 aa)
thrABifunctional; N-terminaus is aspartokinase I and C terminus is homoserine dehydrogenase I; similar to E. coli aspartokinase I, homoserine dehydrogenase I (AAC73113.1); Blastp hit to AAC73113.1 (820 aa), 94% identity in aa 1 - 820; In the C-terminal section; belongs to the homoserine dehydrogenase family. (820 aa)
crpCatabolite activator protein (CAP); A global transcription regulator. Complexes with cyclic AMP (cAMP) which allosterically activates DNA binding to regulate transcription. It can act as an activator, repressor, coactivator or corepressor. Induces a severe bend in DNA. Acts as a negative regulator of its own synthesis as well as for adenylate cyclase (cyaA), which generates cAMP. Plays a major role in carbon catabolite repression (CCR) (By similarity). (210 aa)
bioHPutative hydrolase; The physiological role of BioH is to remove the methyl group introduced by BioC when the pimeloyl moiety is complete. It allows to synthesize pimeloyl-ACP via the fatty acid synthetic pathway through the hydrolysis of the ester bonds of pimeloyl-ACP esters. (256 aa)
asdAspartate-semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family. (368 aa)
nikRNickel-responsive transcriptional regulator; Transcriptional repressor of the nikABCDE operon. Is active in the presence of excessive concentrations of intracellular nickel. (133 aa)
metCCystathionine beta-lyase; Catalyzes the cleavage of cystathionine to homocysteine, pyruvate and ammonia during methionine biosynthesis. (395 aa)
exbBUptake of enterochelin; Involved in the TonB-dependent energy-dependent transport of various receptor-bound substrates. Protects ExbD from proteolytic degradation and functionally stabilizes TonB (By similarity). (244 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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