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sufE sufE grxD grxD torR torR torT torT bolA bolA miaB miaB deoR deoR hyaA hyaA torS torS dnaK dnaK ispH ispH erpA erpA fimE fimE ytfE ytfE nsrR nsrR soxR soxR soxS soxS thiC thiC thiH thiH oxyR oxyR cyaY cyaY nfuA nfuA ygfZ ygfZ iscR iscR iscS iscS hscB hscB hscA hscA fdx fdx iscX iscX ispG ispG mrp mrp sufB sufB sufC sufC sufD sufD
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sufESulfur acceptor protein; Participates in cysteine desulfuration mediated by SufS. Cysteine desulfuration mobilizes sulfur from L-cysteine to yield L- alanine and constitutes an essential step in sulfur metabolism for biosynthesis of a variety of sulfur-containing biomolecules. Functions as a sulfur acceptor for SufS, by mediating the direct transfer of the sulfur atom from the S-sulfanylcysteine of SufS, an intermediate product of cysteine desulfuration process. Together with the SufBCD complex, it thereby enhances up to 50-fold, the cysteine desulfurase activity of SufS. Component of [...] (138 aa)
grxDGlutaredoxin-4; Monothiol glutaredoxin involved in the biogenesis of iron- sulfur clusters; Belongs to the glutaredoxin family. Monothiol subfamily. (115 aa)
torRResponse regulator in two-component regulatory system with TorS; Member of the two-component regulatory system TorS/TorR involved in the anaerobic utilization of trimethylamine-N-oxide (TMAO). Phosphorylated TorR activates the transcription of the torCAD operon by binding to four decameric boxes located in the torCAD promoter. Box1, 2 and 4 contain the DNA sequence 5'-CTGTTCATAT-3' and box3 contains the DNA sequence 5'-CCGTTCATCC-3'. Phosphorylated as well as unphosphorylated TorR negatively regulates its own expression by binding to box1 and 2. (230 aa)
torTPeriplasmic sensory protein associated with the TorRS two-component regulatory system; Upon binding a putative inducer it probably interacts with TorS and allows it to play a role in the induction of the torCAD operon for trimethylamine N-oxide reductase; Belongs to the bacterial solute-binding protein 2 family. (342 aa)
bolAStationary-phase morphogene, transcriptional repressor for mreB; Transcriptional regulator that plays an important role in general stress response. Has many effects on cell morphology, cell growth and cell division. Acts by regulating the transcription of many genes, including dacA (PBP-5), dacC (PBP-6), ampC and mreB. Probably involved in the coordination of genes that adapt the cell physiology in order to enhance cell adaptation and survival under stress conditions. Essential for normal cell morphology in stationary phase and under conditions of starvation. Also regulates a complex n [...] (105 aa)
miaBtRNA-i(6)A37 methylthiotransferase; Catalyzes the methylthiolation of N6-(dimethylallyl)adenosine (i(6)A), leading to the formation of 2-methylthio-N6- (dimethylallyl)adenosine (ms(2)i(6)A) at position 37 in tRNAs that read codons beginning with uridine. (474 aa)
deoRDeoxyribose-5-phosphate-inducible deoxyribose operon transcriptional repressor; This protein is one of the repressors that regulate the expression of deoCABD genes, which encode nucleotide and deoxy ribonucleotide catabolizing enzymes. It also negatively regulates the expression of nupG (a transport protein) and tsx (a pore-forming protein). The inducer is deoxyribose-5-phosphate. (252 aa)
hyaAHydrogenase 1, small subunit; This is one of three E.coli hydrogenases synthesized in response to different physiological conditions. HYD1 is believed to have a role in hydrogen cycling during fermentative growth; Belongs to the [NiFe]/[NiFeSe] hydrogenase small subunit family. (372 aa)
torSHybrid 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)
dnaKChaperone Hsp70, with co-chaperone DnaJ; Plays an essential role in the initiation of phage lambda DNA replication, where it acts in an ATP-dependent fashion with the DnaJ protein to release lambda O and P proteins from the preprimosomal complex. DnaK is also involved in chromosomal DNA replication, possibly through an analogous interaction with the DnaA protein. Also participates actively in the response to hyperosmotic shock. (638 aa)
ispH4-hydroxy-3-methylbut-2-enyl diphosphate reductase, 4Fe-4S protein; Catalyzes the conversion of 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate (HMBPP) into a mixture of isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Acts in the terminal step of the DOXP/MEP pathway for isoprenoid precursor biosynthesis. In vitro, can also hydrate acetylenes to aldehydes and ketones via anti-Markovnikov/Markovnikov addition. Belongs to the IspH family. (316 aa)
erpAIron-sulfur cluster insertion protein; Probably involved in the insertion of Fe-S clusters into apoproteins in vivo including IspG and/or IspH. Essential for growth under aerobic conditions and for anaerobic respiration but not for fermentation. In vitro it binds Fe-S clusters and transfers them to apo-IspG, which is involved in quinone biosynthesis among many other cell components. Experiments indicate that it is probably also involved in the insertion of other Fe-S clusters than IspG/IspH; Belongs to the HesB/IscA family. (114 aa)
fimETyrosine recombinase/inversion of on/off regulator of fimA; FimE is one of the 2 regulatory proteins which control the phase variation of type 1 fimbriae in E.coli. These proteins mediate the periodic inversion of a 300bp DNA segment that harbors the promoter for the fimbrial structural gene, fimA. FimE switches fimA off. (198 aa)
ytfEIron-sulfur cluster repair protein RIC; Di-iron-containing protein involved in the repair of iron- sulfur clusters damaged by oxidative and nitrosative stress conditions. (220 aa)
nsrRNitric oxide-sensitive repressor for NO regulon; Nitric oxide-sensitive repressor of genes involved in protecting the cell against nitrosative stress, such as ytfE, hmpA and ygbA. May require iron for activity. Does not regulates its own transcription. (141 aa)
soxRRedox-sensitive transcriptional activator of soxS; 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. Upon reduction of 2Fe-2S cluster, SoxR reversibly loses its transcriptional activity, but retains its DNA binding affinity. (154 aa)
soxSSuperoxide response regulon transcriptional activator; 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. (107 aa)
thiCPhosphomethylpyrimidine synthase; 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)
thiHTyrosine lyase, involved in thiamine-thiazole moiety synthesis; Catalyzes the radical-mediated cleavage of tyrosine to 2- iminoacetate and 4-cresol. (377 aa)
oxyROxidative and nitrosative stress transcriptional regulator; Hydrogen peroxide sensor. Activates the expression of a regulon of hydrogen peroxide-inducible genes such as katG, gor, ahpC, ahpF, oxyS (a regulatory RNA), dps, fur and grxA. OxyR expression is negatively autoregulated by binding to a 43 bp region upstream of its own coding sequence. OxyR is inactivated by reduction of its essential disulfide bond by the product of GrxA, itself positively regulated by OxyR. Has also a positive regulatory effect on the production of surface proteins that control the colony morphology and auto- [...] (305 aa)
cyaYIron-dependent inhibitor of iron-sulfur cluster formation; Involved in iron-sulfur (Fe-S) cluster assembly. May act as a regulator of Fe-S biogenesis. Can bind both Fe(2+) and Fe(3+) ions. In vivo, has a positive effect on Fe-S cluster biogenesis under iron- rich growth conditions. In vitro, can inhibit IscS cysteine desulfurase activity and the formation of Fe-S clusters on IscU. In vitro, in the presence of IscS and cysteine, Fe(3+)-CyaY can be used as an iron donor during Fe-S cluster assembly on the scaffold protein IscU. (106 aa)
nfuAFe/S biogenesis protein, putative scaffold/chaperone protein; Involved in iron-sulfur cluster biogenesis under severe conditions such as iron starvation or oxidative stress. Binds a 4Fe-4S cluster, can transfer this cluster to apoproteins, and thereby intervenes in the maturation of Fe/S proteins. Could also act as a scaffold/chaperone for damaged Fe/S proteins. Required for E.coli to sustain oxidative stress and iron starvation. Also necessary for the use of extracellular DNA as the sole source of carbon and energy. Belongs to the NfuA family. (191 aa)
ygfZIron-sulfur cluster repair protein, plumbagin resistance; Folate-binding protein involved in regulating the level of ATP-DnaA and in the modification of some tRNAs. It is probably a key factor in regulatory networks that act via tRNA modification, such as initiation of chromosomal replication; Belongs to the tRNA-modifying YgfZ family. (326 aa)
iscRIsc operon transcriptional repressor; Regulates the transcription of several operons and genes involved in the biogenesis of Fe-S clusters and Fe-S-containing proteins. Transcriptional repressor of the iscRSUA operon, which is involved in the assembly of Fe-S clusters into Fe-S proteins. In its apoform, under conditions of oxidative stress or iron deprivation, it activates the suf operon, which is a second operon involved in the assembly of Fe-S clusters. Represses its own transcription as well as that of toxin rnlA. (162 aa)
iscSCysteine desulfurase (tRNA sulfurtransferase), PLP-dependent; Master enzyme that delivers sulfur to a number of partners involved in Fe-S cluster assembly, tRNA modification or cofactor biosynthesis. Catalyzes the removal of elemental sulfur from cysteine to produce alanine. Functions as a sulfur delivery protein for Fe-S cluster synthesis onto IscU, an Fe-S scaffold assembly protein, as well as other S acceptor proteins. Preferentially binds to disordered IscU on which the Fe-S is assembled, IscU converts to the structured state and then dissociates from IscS to transfer the Fe-S to a [...] (404 aa)
hscBHscA co-chaperone, J domain-containing protein Hsc56; Co-chaperone involved in the maturation of iron-sulfur cluster-containing proteins. Seems to help targeting proteins to be folded toward HscA; Belongs to the HscB family. (171 aa)
hscADnaK-like molecular chaperone specific for IscU; Chaperone involved in the maturation of iron-sulfur cluster- containing proteins. Has a low intrinsic ATPase activity which is markedly stimulated by HscB. Involved in the maturation of IscU; Belongs to the heat shock protein 70 family. (616 aa)
fdx[2Fe-2S] ferredoxin; Ferredoxin are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. Although the function of this ferredoxin is unknown it is probable that it has a role as a cellular electron transfer protein. Involved in the in vivo assembly of the Fe-S clusters in a wide variety of iron-sulfur proteins. (111 aa)
iscXFe(2+) donor and activity modulator for cysteine desulfurase; May function as iron donor in the assembly of iron-sulfur clusters; Belongs to the IscX family. (66 aa)
ispG1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase; Converts 2C-methyl-D-erythritol 2,4-cyclodiphosphate (ME- 2,4cPP) into 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate, using flavodoxin as the reducing agent; Belongs to the IspG family. (372 aa)
mrpAntiporter inner membrane protein; Binds and transfers iron-sulfur (Fe-S) clusters to target apoproteins. Can hydrolyze ATP; Belongs to the Mrp/NBP35 ATP-binding proteins family. (369 aa)
sufBComponent of SufBCD Fe-S cluster assembly scaffold; The SufBCD complex acts synergistically with SufE to stimulate the cysteine desulfurase activity of SufS. The SufBCD complex contributes to the assembly or repair of oxygen-labile iron-sulfur clusters under oxidative stress. May facilitate iron uptake from extracellular iron chelators under iron limitation. (495 aa)
sufCSufBCD Fe-S cluster assembly scaffold protein, ATP-binding protein; Has low ATPase activity. The SufBCD complex acts synergistically with SufE to stimulate the cysteine desulfurase activity of SufS. The SufBCD complex contributes to the assembly or repair of oxygen-labile iron-sulfur clusters under oxidative stress. May facilitate iron uptake from extracellular iron chelators under iron limitation. (248 aa)
sufDComponent of SufBCD Fe-S cluster assembly scaffold; The SufBCD complex acts synergistically with SufE to stimulate the cysteine desulfurase activity of SufS. The SufBCD complex contributes to the assembly or repair of oxygen-labile iron-sulfur clusters under oxidative stress. May facilitate iron uptake from extracellular iron chelators under iron limitation. Required for the stability of the FhuF protein. (423 aa)
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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