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| | deaD | Cysteine sulfinate desulfinase; DEAD-box RNA helicase involved in various cellular processes at low temperature, including ribosome biogenesis, mRNA degradation and translation initiation. (646 aa) |
| | gph | Phosphoglycolate phosphatase; Specifically catalyzes the dephosphorylation of 2- phosphoglycolate. Is involved in the dissimilation of the intracellular 2-phosphoglycolate formed during the DNA repair of 3'-phosphoglycolate ends, a major class of DNA lesions induced by oxidative stress. Belongs to the HAD-like hydrolase superfamily. CbbY/CbbZ/Gph/YieH family. (252 aa) |
| | dam | DNA adenine methylase; Methylates DNA within the sequence GATC and protects the DNA from cleavage by the restriction endonuclease MboI. Although it shares sequence specificity with a number of type II restriction endonucleases and methylases, it is thought to act in postreplication mismatch repair rather than as a part of a restriction modification system. May also play a role in DNA replication; Belongs to the N(4)/N(6)-methyltransferase family. (278 aa) |
| | yrfG | Similar to E. coli putative phosphatase (AAC76424.1); Blastp hit to AAC76424.1 (237 aa), 85% identity in aa 16 - 237. (222 aa) |
| | yrfH | Heat shock protein; Predicted small RNA-binding protein; similar to E. coli orf, hypothetical protein (AAC76425.1); Blastp hit to AAC76425.1 (133 aa), 95% identity in aa 1 - 133; Belongs to the HSP15 family. (133 aa) |
| | rtcB | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC76446.1); Blastp hit to AAC76446.1 (408 aa), 87% identity in aa 1 - 408. (405 aa) |
| | rpoH | Sigma 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) |
| | gor | Similar to E. coli glutathione oxidoreductase (AAC76525.1); Blastp hit to AAC76525.1 (450 aa), 94% identity in aa 1 - 450. (450 aa) |
| | treF | Cytoplasmic trehalase; Hydrolyzes trehalose to glucose. Could be involved, in cells returning to low osmolarity conditions, in the utilization of the accumulated cytoplasmic trehalose, which was synthesized in response to high osmolarity. (549 aa) |
| | kdgK | Similar to E. coli ketodeoxygluconokinase (AAC76551.1); Blastp hit to AAC76551.1 (382 aa), 92% identity in aa 74 - 381. (309 aa) |
| | tag | Similar to E. coli 3-methyl-adenine DNA glycosylase I, constitutive (AAC76573.1); Blastp hit to AAC76573.1 (187 aa), 85% identity in aa 1 - 186. (193 aa) |
| | yiaB | Putative inner membrane protein; Similar to E. coli orf, hypothetical protein (AAC76587.1); Blastp hit to AAC76587.1 (117 aa), 33% identity in aa 15 - 109. (117 aa) |
| | sgbU | Similar to E. coli probable 3-hexulose-6-phosphate isomerase (AAC76606.1); Blastp hit to AAC76606.1 (297 aa), 91% identity in aa 12 - 297. (286 aa) |
| | grxC | Glutaredoxin 3; Has a glutathione-disulfide oxidoreductase activity in the presence of NADPH and glutathione reductase. Reduces low molecular weight disulfides and proteins. (83 aa) |
| | mutM | Formamidopyrimidine DNA glycosylase; Involved in base excision repair of DNA damaged by oxidation or by mutagenic agents. Acts as DNA glycosylase that recognizes and removes damaged bases. Has a preference for oxidized purines, such as 7,8-dihydro-8-oxoguanine (8-oxoG). Has AP (apurinic/apyrimidinic) lyase activity and introduces nicks in the DNA strand. Cleaves the DNA backbone by beta-delta elimination to generate a single-strand break at the site of the removed base with both 3'- and 5'-phosphates (By similarity). (269 aa) |
| | yicF | Putative DNA ligase; Catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double-stranded DNA using NAD as a coenzyme and as the energy source for the reaction. Belongs to the NAD-dependent DNA ligase family. LigB subfamily. (561 aa) |
| | spoT | (p)ppGpp synthetase II; In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. (703 aa) |
| | recG | DNA helicase; Critical role in recombination and DNA repair. Helps process Holliday junction intermediates to mature products by catalyzing branch migration. Has a DNA unwinding activity characteristic of a DNA helicase with a 3'- to 5'- polarity. Unwinds branched duplex DNA (Y- DNA); Belongs to the helicase family. RecG subfamily. (693 aa) |
| | sugR | ATP binding protein; Putative cytoplasmic protein; Pathogenicity island encoded protein: SPI3; putative ATP binding protein SugR (gi|4324607). (396 aa) |
| | ysdB | Conserved protein in the LexA regulon. (29 aa) |
| | recF | Gap repair protein; The RecF protein is involved in DNA metabolism; it is required for DNA replication and normal SOS inducibility. RecF binds preferentially to single-stranded, linear DNA. It also seems to bind ATP (By similarity). (357 aa) |
| | rep | Rep helicase; Rep helicase is a single-stranded DNA-dependent ATPase involved in DNA replication; it can initiate unwinding at a nick in the DNA. It binds to the single-stranded DNA and acts in a progressive fashion along the DNA in the 3' to 5' direction. (674 aa) |
| | uvrD | DNA-dependent ATPase I and helicase II; Has both ATPase and helicase activities. Unwinds DNA duplexes with 3' to 5' polarity with respect to the bound strand and initiates unwinding most effectively when a single-stranded region is present. Involved in the post-incision events of nucleotide excision repair and methyl-directed mismatch repair; Belongs to the helicase family. UvrD subfamily. (720 aa) |
| | recQ | ATP-dependent DNA helicase; Involved in the RecF recombination pathway; its gene expression is under the regulation of the SOS system. It is a DNA helicase; Belongs to the helicase family. RecQ subfamily. (615 aa) |
| | polA | DNA polymerase I; In addition to polymerase activity, this DNA polymerase exhibits 3'-5' and 5'-3' exonuclease activity. It is able to utilize nicked circular duplex DNA as a template and can unwind the parental DNA strand from its template. (928 aa) |
| | STM4014 | Putative periplasmic protein. (341 aa) |
| | sodA | Superoxide dismutase; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems; Belongs to the iron/manganese superoxide dismutase family. (206 aa) |
| | priA | Primosomal protein N; Involved in the restart of stalled replication forks. Recognizes and binds the arrested nascent DNA chain at stalled replication forks. It can open the DNA duplex, via its helicase activity, and promote assembly of the primosome and loading of the major replicative helicase DnaB onto DNA; Belongs to the helicase family. PriA subfamily. (732 aa) |
| | katG | Catalase; Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity; Belongs to the peroxidase family. Peroxidase/catalase subfamily. (726 aa) |
| | nfi | Endonuclease V; DNA repair enzyme involved in the repair of deaminated bases. Selectively cleaves double-stranded DNA at the second phosphodiester bond 3' to a deoxyinosine leaving behind the intact lesion on the nicked DNA. (223 aa) |
| | yjbA | Putative inner membrane protein; Similar to E. coli orf, hypothetical protein (AAC77000.1); Blastp hit to AAC77000.1 (136 aa), 87% identity in aa 1 - 136; Belongs to the PsiE family. (136 aa) |
| | lexA | SOS response regulator; Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single- stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair. (202 aa) |
| | uvrA | DNA excision repair enzyme; The UvrABC repair system catalyzes the recognition and processing of DNA lesions. UvrA is an ATPase and a DNA-binding protein. A damage recognition complex composed of 2 UvrA and 2 UvrB subunits scans DNA for abnormalities. When the presence of a lesion has been verified by UvrB, the UvrA molecules dissociate; Belongs to the ABC transporter superfamily. UvrA family. (941 aa) |
| | ssb | ssDNA-binding protein; Plays an important role in DNA replication, recombination and repair. Binds to ssDNA and to an array of partner proteins to recruit them to their sites of action during DNA metabolism. (176 aa) |
| | soxR | Redox-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) |
| | mopA | Chaperone Hsp60 with peptide-dependent ATPase activity; Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions. (548 aa) |
| | blc | Outer membrane lipoprotein; Involved in the storage or transport of lipids necessary for membrane maintenance under stressful conditions. Displays a binding preference for lysophospholipids. (177 aa) |
| | mutL | Enzyme in methyl-directed mismatch repair; This protein is involved in the repair of mismatches in DNA. It is required for dam-dependent methyl-directed DNA mismatch repair. May act as a 'molecular matchmaker', a protein that promotes the formation of a stable complex between two or more DNA-binding proteins in an ATP-dependent manner without itself being part of a final effector complex. (618 aa) |
| | ytfE | Putative cell morphogenesis; Di-iron-containing protein involved in the repair of iron- sulfur clusters damaged by oxidative and nitrosative stress conditions. (220 aa) |
| | msrA | Peptide methionine sulfoxide reductase; Has an important function as a repair enzyme for proteins that have been inactivated by oxidation. Catalyzes the reversible oxidation-reduction of methionine sulfoxide in proteins to methionine. (212 aa) |
| | STM4490 | Putative Mrr restriction endonuclease. (329 aa) |
| | hsdS | Specificity determinant for hsdM and hsdR; The M and S subunits together form a methyltransferase (MTase) that methylates two adenine residues in complementary strands of a bipartite DNA recognition sequence. In the presence of the R subunit the complex can also act as an endonuclease, binding to the same target sequence but cutting the DNA some distance from this site. Whether the DNA is cut or modified depends on the methylation state of the target sequence. When the target site is unmodified, the DNA is cut. When the target site is hemimethylated, the complex acts as a maintenance M [...] (469 aa) |
| | hsdM | DNA methylase M, host modification; Methylation of specific adenine residues; required for both restriction and modification activities (By similarity). The StySJI enzyme recognizes 5'-GAGN(6)GTRC-3'; Belongs to the N(4)/N(6)-methyltransferase family. (529 aa) |
| | hsdR | Host restriction; similar to E. coli host restriction; endonuclease R (AAC77306.1); Blastp hit to AAC77306.1 (1188 aa), 91% identity in aa 20 - 1188. (1169 aa) |
| | mrr | Similar to E. coli restriction of methylated adenine (AAC77307.1); Blastp hit to AAC77307.1 (304 aa), 77% identity in aa 1 - 304. (304 aa) |
| | yjiY | Similar to E. coli putative carbon starvation protein (AAC77310.1); Blastp hit to AAC77310.1 (721 aa), 96% identity in aa 6 - 721. (716 aa) |
| | osmY | RpoS-dependent stationary phase gene; similar to E. coli hyperosmotically inducible periplasmic protein (AAC77329.1); Blastp hit to AAC77329.1 (201 aa), 89% identity in aa 1 - 201. (205 aa) |
| | radA | Putative ATP-dependent protease; DNA-dependent ATPase involved in processing of recombination intermediates, plays a role in repairing DNA breaks. Stimulates the branch migration of RecA-mediated strand transfer reactions, allowing the 3' invading strand to extend heteroduplex DNA faster. Binds ssDNA in the presence of ADP but not other nucleotides, has ATPase activity that is stimulated by ssDNA and various branched DNA structures, but inhibited by SSB. Does not have RecA's homology-searching function. Belongs to the RecA family. RadA subfamily. (460 aa) |
| | STM2730 | Fels-2 prophage protein; Similar to retron in E coli; similar to E. coli DNA adenine methylase (AAC76412.1); Blastp hit to AAC76412.1 (278 aa), 46% identity in aa 8 - 266. (285 aa) |
| | STM2767 | Putative superfamily I DNA and RNA helicase. (660 aa) |
| | virK | virK-like protein; Similar to virK in Shigella; virulence gene; similar to E. coli putative enzyme (AAC73964.1); Blastp hit to AAC73964.1 (330 aa), 39% identity in aa 47 - 329. (309 aa) |
| | proV | Glycine/betaine/proline transport protein; Part of the ProU ABC transporter complex involved in glycine betaine and proline betaine uptake. Probably responsible for energy coupling to the transport system. (400 aa) |
| | recA | DNA strand exchange and recombination protein; Can catalyze the hydrolysis of ATP in the presence of single- stranded DNA, the ATP-dependent uptake of single-stranded DNA by duplex DNA, and the ATP-dependent hybridization of homologous single-stranded DNAs. It interacts with LexA causing its activation and leading to its autocatalytic cleavage. (353 aa) |
| | mutS | Methyl-directed mismatch repair; This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity. (855 aa) |
| | cas1 | Putative cytoplasmic protein; CRISPR (clustered regularly interspaced short palindromic repeat), is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain spacers, sequences complementary to antecedent mobile elements, and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA). Acts as a dsDNA endonuclease. Involved in the integration of spacer DNA into the CRISPR cassette. (306 aa) |
| | STM2940 | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC75799.1); Blastp hit to AAC75799.1 (226 aa), 35% identity in aa 3 - 159. (248 aa) |
| | ygcB | Putative helicase; Similar to E. coli orf, hypothetical protein (AAC75803.1); Blastp hit to AAC75803.1 (888 aa), 30% identity in aa 7 - 849. (887 aa) |
| | relA | (p)ppGpp synthetase I; In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. (744 aa) |
| | recD | Exonuclease V, alpha chain; A helicase/nuclease that prepares dsDNA breaks (DSB) for recombinational DNA repair. Binds to DSBs and unwinds DNA via a highly rapid and processive ATP-dependent bidirectional helicase activity. Unwinds dsDNA until it encounters a Chi (crossover hotspot instigator) sequence from the 3' direction. Cuts ssDNA a few nucleotides 3' to the Chi site. The properties and activities of the enzyme are changed at Chi. The Chi-altered holoenzyme produces a long 3'-ssDNA overhang and facilitates RecA-binding to the ssDNA for homologous DNA recombination and repair. Holo [...] (611 aa) |
| | recB | Exonuclease V, beta chain; A helicase/nuclease that prepares dsDNA breaks (DSB) for recombinational DNA repair. Binds to DSBs and unwinds DNA via a highly rapid and processive ATP-dependent bidirectional helicase activity. Unwinds dsDNA until it encounters a Chi (crossover hotspot instigator) sequence from the 3' direction. Cuts ssDNA a few nucleotides 3' to the Chi site. The properties and activities of the enzyme are changed at Chi. The Chi-altered holoenzyme produces a long 3'-ssDNA overhang and facilitates RecA-binding to the ssDNA for homologous DNA recombination and repair. Holoe [...] (1181 aa) |
| | recC | Exonuclease V, subunit; A helicase/nuclease that prepares dsDNA breaks (DSB) for recombinational DNA repair. Binds to DSBs and unwinds DNA via a highly rapid and processive ATP-dependent bidirectional helicase activity. Unwinds dsDNA until it encounters a Chi (crossover hotspot instigator) sequence from the 3' direction. Cuts ssDNA a few nucleotides 3' to the Chi site. The properties and activities of the enzyme are changed at Chi. The Chi-altered holoenzyme produces a long 3'-ssDNA overhang and facilitates RecA-binding to the ssDNA for homologous DNA recombination and repair. Holoenzy [...] (1123 aa) |
| | mutH | Methyl-directed mismatch repair protein; Sequence-specific endonuclease that cleaves unmethylated GATC sequences. It is involved in DNA mismatch repair; Belongs to the MutH family. (231 aa) |
| | recJ | ssDNA exonuclease; Single-stranded-DNA-specific exonuclease. Required for many types of recombinational events, although the stringency of the requirement for RecJ appears to vary with the type of recombinational event monitored and the other recombination gene products which are available. (577 aa) |
| | yggE | Putative periplasmic immunogenic protein; Similar to E. coli putative actin (AAC75959.1); Blastp hit to AAC75959.1 (246 aa), 88% identity in aa 1 - 245. (248 aa) |
| | mutY | Adenine DNA glycosylase; Adenine glycosylase active on G-A mispairs. MutY also corrects error-prone DNA synthesis past GO lesions which are due to the oxidatively damaged form of guanine: 7,8-dihydro-8-oxoguanine (8-oxo- dGTP); Belongs to the Nth/MutY family. (350 aa) |
| | yggX | Putative cytoplasmic protein; Could be a mediator in iron transactions between iron acquisition and iron-requiring processes, such as synthesis and/or repair of Fe-S clusters in biosynthetic enzymes. Necessary to maintain high levels of aconitase under oxidative stress. (91 aa) |
| | iraD | Putative cytoplasmic protein; Inhibits RpoS proteolysis by regulating RssB activity, thereby increasing the stability of the sigma stress factor RpoS during oxidative stress. Its effect on RpoS stability is due to its interaction with RssB, which probably blocks the interaction of RssB with RpoS, and the consequent delivery of the RssB-RpoS complex to the ClpXP protein degradation pathway. (126 aa) |
| | ygiW | Putative outer membrane protein; Similar to E. coli orf, hypothetical protein (AAC76060.1); Blastp hit to AAC76060.1 (130 aa), 89% identity in aa 1 - 130. (130 aa) |
| | mug | G/U mismatch specific DNA glycosylase; Excises ethenocytosine and uracil, which can arise by alkylation or deamination of cytosine, respectively, from the corresponding mispairs with guanine in ds-DNA. It is capable of hydrolyzing the carbon-nitrogen bond between the sugar-phosphate backbone of the DNA and the mispaired base. The complementary strand guanine functions in substrate recognition. Required for DNA damage lesion repair in stationary-phase cells; Belongs to the uracil-DNA glycosylase (UDG) superfamily. TDG/mug family. (168 aa) |
| | yqjH | Putative transporter; Similar to E. coli orf, hypothetical protein (AAC76105.1); Blastp hit to AAC76105.1 (254 aa), 72% identity in aa 6 - 254. (255 aa) |
| | yraP | Similar to E. coli putative periplasmic protein (AAC76184.1); Blastp hit to AAC76184.1 (191 aa), 92% identity in aa 1 - 191. (191 aa) |
| | yaaA | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC73117.1); Blastp hit to AAC73117.1 (258 aa), 86% identity in aa 1 - 257; Belongs to the UPF0246 family. (257 aa) |
| | dnaJ | Heat 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) |
| | apaG | Putative cytoplasmic protein; Not known; mutations in apaG/corD give a phenotype of low- level Co(2+) resistance. They also decrease Mg(2+) efflux but not influx via the CorA Mg(2+) transport system. (125 aa) |
| | polB | DNA polymerase II; 3'->5' exonuclease; similar to E. coli DNA polymerase II (AAC73171.1); Blastp hit to AAC73171.1 (783 aa), 89% identity in aa 1 - 783. (783 aa) |
| | mutT | Prefers dGTP; similar to E. coli 7,8-dihydro-8-oxoguanine-triphosphatase, prefers dGTP, causes AT-GC transversions (AAC73210.1); Blastp hit to AAC73210.1 (129 aa), 80% identity in aa 1 - 128; Belongs to the Nudix hydrolase family. (131 aa) |
| | htrA | Periplasmic serine protease Do, heat shock protein; DegP acts as a chaperone at low temperatures but switches to a peptidase (heat shock protein) at higher temperatures. It degrades transiently denatured and unfolded proteins which accumulate in the periplasm following heat shock or other stress conditions. DegP is efficient with Val-Xaa and Ile-Xaa peptide bonds, suggesting a preference for beta-branched side chain amino acids. Only unfolded proteins devoid of disulfide bonds appear capable of being cleaved, thereby preventing non-specific proteolysis of folded proteins. Its proteolyt [...] (475 aa) |
| | rnhB | RNAse HII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids; Belongs to the RNase HII family. (198 aa) |
| | dnaQ | DNA polymerase III, epsilon subunit; DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. The epsilon subunit contains the editing function and is a proofreading 3'- 5' exonuclease (By similarity). (243 aa) |
| | dinP | DNA polymerase IV; Poorly processive, error-prone DNA polymerase involved in untargeted mutagenesis. Copies undamaged DNA at stalled replication forks, which arise in vivo from mismatched or misaligned primer ends. These misaligned primers can be extended by PolIV. Exhibits no 3'-5' exonuclease (proofreading) activity. May be involved in translesional synthesis, in conjunction with the beta clamp from PolIII. (351 aa) |
| | mod | DNA methylase; Binds the system-specific DNA recognition site 5'-CAGAG-3'. Necessary for restriction and for methylation of A-4. (652 aa) |
| | res | DNA restriction (DNA helicase); Cleaves DNA some 25 base-pairs downstream from the recognition site. May also act as a helicase involved in unwinding DNA at the cleavage site. Protein only required for restriction but needs the presence of the modification enzyme; Belongs to the type III restriction-modification system res protein family. (990 aa) |
| | yaiV | Putative inner membrane protein; Involved in oxidative stress resistance. (207 aa) |
| | yaiB | Putative cytoplasmic protein; Inhibits RpoS proteolysis by regulating RssB activity, thereby increasing the stability of the sigma stress factor RpoS especially during phosphate and magnesium starvation, but also in stationary phase and during nitrogen starvation. Its effect on RpoS stability is due to its interaction with RssB, which probably blocks the interaction of RssB with RpoS, and the consequent delivery of the RssB-RpoS complex to the ClpXP protein degradation pathway. Belongs to the IraP family. (88 aa) |
| | sbcD | ATP-dependent dsDNA exonuclease; SbcCD cleaves DNA hairpin structures. These structures can inhibit DNA replication and are intermediates in certain DNA recombination reactions. The complex acts as a 3'->5' double strand exonuclease that can open hairpins. It also has a 5' single-strand endonuclease activity; Belongs to the SbcD family. (400 aa) |
| | phoR | Sensory kinase in two-component regulatory system with PhoB, regulates pho regulon; Similar to E. coli positive and negative sensor protein for pho regulon (AAC73503.1); Blastp hit to AAC73503.1 (431 aa), 90% identity in aa 1 - 431. (431 aa) |
| | thiJ | 4-methyl-5(beta-hydroxyethyl)-thiazole synthesis; Protein and nucleotide deglycase that catalyzes the deglycation of the Maillard adducts formed between amino groups of proteins or nucleotides and reactive carbonyl groups of glyoxals. Thus, functions as a protein deglycase that repairs methylglyoxal- and glyoxal-glycated proteins, and releases repaired proteins and lactate or glycolate, respectively. Deglycates cysteine, arginine and lysine residues in proteins, and thus reactivates these proteins by reversing glycation by glyoxals. Is able to repair glycated serum albumin, collagen, g [...] (196 aa) |
| | lon | DNA-binding protein; ATP-dependent serine protease that mediates the selective degradation of mutant and abnormal proteins as well as certain short- lived regulatory proteins. Required for cellular homeostasis and for survival from DNA damage and developmental changes induced by stress. Degrades polypeptides processively to yield small peptide fragments that are 5 to 10 amino acids long. Binds to DNA in a double-stranded, site-specific manner. (784 aa) |
| | ybaZ | Putative methyltransferase; Similar to E. coli orf, hypothetical protein (AAC73557.1); Blastp hit to AAC73557.1 (129 aa), 82% identity in aa 1 - 129. (129 aa) |
| | recR | Putative recombination protein, gap repair; May play a role in DNA repair. It seems to be involved in an RecBC-independent recombinational process of DNA repair. It may act with RecF and RecO. (201 aa) |
| | htpG | Chaperone Hsp90, heat shock protein C 62.5; Molecular chaperone. Has ATPase activity. (632 aa) |
| | STM0561 | Sensor protein; Similar to E. coli putative 2-component sensor protein (AAC73671.1); Blastp hit to AAC73671.1 (480 aa), 74% identity in aa 375 - 479. (109 aa) |
| | STM0566 | Putative inner membrane protein; Similar to E. coli orf, hypothetical protein (AAC73404.1); Blastp hit to AAC73404.1 (200 aa), 84% identity in aa 4 - 188. (186 aa) |
| | ybdG | Similar to E. coli putative transport (AAC73678.1); Blastp hit to AAC73678.1 (415 aa), 88% identity in aa 1 - 414. (415 aa) |
| | cstA | Similar to E. coli carbon starvation protein (AAC73699.1); Blastp hit to AAC73699.1 (701 aa), 97% identity in aa 1 - 701. (701 aa) |
| | ahpC | Alkyl 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) |
| | ahpF | Alkyl hydroperoxide reductase, F52a subunit; Serves to protect the cell against DNA damage by alkyl hydroperoxides. It can use either NADH or NADPH as electron donor for direct reduction of redox dyes or of alkyl hydroperoxides when combined with the AhpC protein; Belongs to the class-II pyridine nucleotide-disulfide oxidoreductase family. (521 aa) |
| | phrB | Deoxyribodipyrimidine photolyase (photoreactivation); Involved in repair of UV radiation-induced DNA damage. Catalyzes the light-dependent monomerization (300-600 nm) of cyclobutyl pyrimidine dimers (in cis-syn configuration), which are formed between adjacent bases on the same DNA strand upon exposure to ultraviolet radiation; Belongs to the DNA photolyase class-1 family. (473 aa) |
| | ybgI | Putative cytoplasmic protein; Provides significant protection from radiation damage and may be involved in the degradation of radiation-damaged nucleotides. Belongs to the GTP cyclohydrolase I type 2/NIF3 family. (247 aa) |
| | nei | Endonuclease VIII; Involved in base excision repair of DNA damaged by oxidation or by mutagenic agents. Acts as DNA glycosylase that recognizes and removes damaged bases. Has a preference for oxidized pyrimidines, such as thymine glycol, 5,6-dihydrouracil and 5,6-dihydrothymine. Has AP (apurinic/apyrimidinic) lyase activity and introduces nicks in the DNA strand. Cleaves the DNA backbone by beta-delta elimination to generate a single-strand break at the site of the removed base with both 3'- and 5'-phosphates. (263 aa) |
| | uvrB | UvrB with UvrAC is a DNA excision repair enzyme; The UvrABC repair system catalyzes the recognition and processing of DNA lesions. A damage recognition complex composed of 2 UvrA and 2 UvrB subunits scans DNA for abnormalities. Upon binding of the UvrA(2)B(2) complex to a putative damaged site, the DNA wraps around one UvrB monomer. DNA wrap is dependent on ATP binding by UvrB and probably causes local melting of the DNA helix, facilitating insertion of UvrB beta-hairpin between the DNA strands. Then UvrB probes one DNA strand for the presence of a lesion. If a lesion is found the UvrA [...] (673 aa) |
| | dinG | LexA regulated (SOS) repair enzyme; DNA-dependent ATPase and 5'-3' DNA helicase. (714 aa) |
| | ybiO | Similar to E. coli putative transport protein (AAC73895.1); Blastp hit to AAC73895.1 (786 aa), 85% identity in aa 46 - 786. (740 aa) |
| | rimK | Ribosomal protein S6 modification protein; Is an L-glutamate ligase that catalyzes the ATP-dependent post-translational addition of glutamate residues to the C-terminus of ribosomal protein S6 (RpsF). Is also able to catalyze the synthesis of poly-alpha-glutamate in vitro, via ATP hydrolysis from unprotected glutamate as substrate. The number of glutamate residues added to either RpsF or to poly-alpha-glutamate changes with pH. Belongs to the RimK family. (300 aa) |
| | STM0924 | Putative Fels-1 prophage Cu/Zn superoxide dismutase; Destroys radicals which are normally produced within the cells and which are toxic to biological systems. Belongs to the Cu-Zn superoxide dismutase family. (174 aa) |
| | hcp | Hybrid cluster protein; Catalyzes the reduction of hydroxylamine to form NH(3) and H(2)O. (550 aa) |
| | ybjD | Homology with RecF protein; Similar to E. coli orf, hypothetical protein (AAC73963.1); Blastp hit to AAC73963.1 (552 aa), 89% identity in aa 1 - 552. (552 aa) |
| | ybjX | Homolog of virK; Similar to E. coli putative enzyme (AAC73964.1); Blastp hit to AAC73964.1 (330 aa), 57% identity in aa 15 - 329. (322 aa) |
| | clpA | Similar 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) |
| | trxB | Similar to E. coli thioredoxin reductase (AAC73974.1); Blastp hit to AAC73974.1 (321 aa), 96% identity in aa 1 - 320. (322 aa) |
| | STM1019 | Gifsy-2 prophage protein; Hypothetical protein 13 (gi|7467262). (77 aa) |
| | STM1028 | Gifsy-2 prophage lysozyme; Similar to E. coli bacteriophage lambda lysozyme homolog (AAC73656.1); Blastp hit to AAC73656.1 (165 aa), 40% identity in aa 35 - 161. (150 aa) |
| | sodC | Gifsy-2 prophage superoxide dismutase precursor (Cu-Zn); Destroys radicals which are normally produced within the cells and which are toxic to biological systems; Belongs to the Cu-Zn superoxide dismutase family. (177 aa) |
| | STM1053 | Gifsy-2 prophage protein; Similar to E. coli orf, hypothetical protein (AAC74998.1); Blastp hit to AAC74998.1 (217 aa), 85% identity in aa 1 - 178; Belongs to the SOS response-associated peptidase family. (208 aa) |
| | uup | Contains duplicated ATPase domain; similar to E. coli putative ATP-binding component of a transport system (AAC74035.1); Blastp hit to AAC74035.1 (635 aa), 94% identity in aa 1 - 634. (635 aa) |
| | sulA | Suppressor of lon; Component of the SOS system and an inhibitor of cell division. Accumulation of SulA causes rapid cessation of cell division and the appearance of long, non-septate filaments. In the presence of GTP, binds a polymerization-competent form of FtsZ in a 1:1 ratio, thus inhibiting FtsZ polymerization and therefore preventing it from participating in the assembly of the Z ring. This mechanism prevents the premature segregation of damaged DNA to daughter cells during cell division. (169 aa) |
| | helD | DNA helicase IV; Similar to E. coli DNA helicase IV (AAC74048.1); Blastp hit to AAC74048.1 (684 aa), 83% identity in aa 1 - 684. (684 aa) |
| | yccV | Putative inner membrane protein; Involved in the degradation of certain denaturated proteins, including DnaA, during heat shock stress; Belongs to the HspQ family. (105 aa) |
| | iraM | Putative cytoplasmic protein; Involved in the stabilization of the sigma stress factor RpoS; Belongs to the IraM/RssC family. (120 aa) |
| | dinI | DNA damage-inducible protein I; Inhibits UmuD processing; similar to E. coli damage-inducible protein I (AAC74145.1); Blastp hit to AAC74145.1 (81 aa), 85% identity in aa 1 - 81. (81 aa) |
| | mfd | Transcription-repair coupling factor; Couples transcription and DNA repair by recognizing RNA polymerase (RNAP) stalled at DNA lesions. Mediates ATP-dependent release of RNAP and its truncated transcript from the DNA, and recruitment of nucleotide excision repair machinery to the damaged site; In the C-terminal section; belongs to the helicase family. RecG subfamily. (1148 aa) |
| | yeaA | Hypothetical protein; Putative domain frequently associated with peptide methionine sulfoxide reductase; similar to E. coli orf, hypothetical protein (AAC74848.1); Blastp hit to AAC74848.1 (137 aa), 85% identity in aa 1 - 137. (147 aa) |
| | STM1301 | Putative mutator MutT protein; Similar to E. coli orf, hypothetical protein (AAC74829.1); Blastp hit to AAC74829.1 (135 aa), 77% identity in aa 1 - 135; Belongs to the Nudix hydrolase family. (138 aa) |
| | xthA | Exonuclease III; Major apurinic-apyrimidinic endonuclease of E.coli. It removes the damaged DNA at cytosines and guanines by cleaving on the 3'-side of the AP site by a beta-elimination reaction. It exhibits 3'- 5'-exonuclease, 3'-phosphomonoesterase, 3'-repair diesterase and ribonuclease H activities (By similarity). (268 aa) |
| | cho | Putative nuclease subunit of the excinuclease complex; Incises the DNA at the 3' side of a lesion during nucleotide excision repair. Incises the DNA farther away from the lesion than UvrC. Not able to incise the 5' site of a lesion. When a lesion remains because UvrC is not able to induce the 3' incision, Cho incises the DNA. Then UvrC makes the 5' incision. The combined action of Cho and UvrC broadens the substrate range of nucleotide excision repair (By similarity). (302 aa) |
| | katE | Catalase; Serves to protect cells from the toxic effects of hydrogen peroxide. (750 aa) |
| | btuE | Vitamin B12 transport protein; Non-specific peroxidase that can use thioredoxin or glutathione as a reducing agent. (183 aa) |
| | sodB | Iron superoxide dismutase; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems; Belongs to the iron/manganese superoxide dismutase family. (193 aa) |
| | rnt | RNase T; Trims short 3' overhangs of a variety of RNA species, leaving a one or two nucleotide 3' overhang. Responsible for the end-turnover of tRNA: specifically removes the terminal AMP residue from uncharged tRNA (tRNA-C-C-A). Also appears to be involved in tRNA biosynthesis. (215 aa) |
| | sodC-2 | Copper/zinc superoxide dismutase; Destroys radicals which are normally produced within the cells and which are toxic to biological systems; Belongs to the Cu-Zn superoxide dismutase family. (173 aa) |
| | nth | Endonuclease III; DNA repair enzyme that has both DNA N-glycosylase activity and AP-lyase activity. The DNA N-glycosylase activity releases various damaged pyrimidines from DNA by cleaving the N-glycosidic bond, leaving an AP (apurinic/apyrimidinic) site. The AP-lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'- phosphate. (211 aa) |
| | hdeB | Putative periplasmic transport protein; Required for optimal acid stress protection, which is important for survival of enteric bacteria in the acidic environment of the host stomach. Exhibits a chaperone-like activity at acidic pH by preventing the aggregation of many different periplasmic proteins. Belongs to the HdeB family. (109 aa) |
| | osmC | Putative resistance protein; Osmotically inducible; similar to E. coli osmotically inducible protein (AAC74555.1); Blastp hit to AAC74555.1 (143 aa), 92% identity in aa 1 - 143. (143 aa) |
| | nifJ | Similar to E. coli putative oxidoreductase, Fe-S subunit (AAC74460.1); Blastp hit to AAC74460.1 (1174 aa), 92% identity in aa 1 - 1174. (1174 aa) |
| | ogt | O-6-alkylguanine-DNA; Involved in the cellular defense against the biological effects of O6-methylguanine (O6-MeG) and O4-methylthymine (O4-MeT) in DNA. Repairs the methylated nucleobase in DNA by stoichiometrically transferring the methyl group to a cysteine residue in the enzyme. This is a suicide reaction: the enzyme is irreversibly inactivated. (171 aa) |
| | pspB | Phage shock protein; Regulatory gene; activates expression of psp operon with PspC; similar to E. coli phage shock protein (AAC74387.1); Blastp hit to AAC74387.1 (74 aa), 89% identity in aa 1 - 74. (74 aa) |
| | pspA | Phage shock protein; Negative regulatory gene for the psp opreon; similar to E. coli phage shock protein, inner membrane protein (AAC74386.1); Blastp hit to AAC74386.1 (222 aa), 91% identity in aa 1 - 222. (222 aa) |
| | treA | Trehalase, periplasmic; Provides the cells with the ability to utilize trehalose at high osmolarity by splitting it into glucose molecules that can subsequently be taken up by the phosphotransferase-mediated uptake system; Belongs to the glycosyl hydrolase 37 family. (570 aa) |
| | yoaA | Putative DNA helicase; Similar to E. coli putative enzyme (AAC74878.1); Blastp hit to AAC74878.1 (636 aa), 95% identity in aa 1 - 635. (636 aa) |
| | exoX | DNA exonuclease X; Degrades ss and ds DNA with 3'-5' polarity; similar to E. coli orf, hypothetical protein (AAC74914.1); Blastp hit to AAC74914.1 (220 aa), 90% identity in aa 1 - 219. (232 aa) |
| | ruvB | Holliday junction helicase, subunit B; The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. (336 aa) |
| | ruvA | Holliday junction helicase subunit A; The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. RuvA stimulates, in the presence of DNA, the weak ATPase activity of RuvB. (203 aa) |
| | ruvC | Holliday junction nuclease; Nuclease that resolves Holliday junction intermediates in genetic recombination. Cleaves the cruciform structure in supercoiled DNA by nicking to strands with the same polarity at sites symmetrically opposed at the junction in the homologous arms and leaves a 5'-terminal phosphate and a 3'-terminal hydroxyl group. (173 aa) |
| | uvrC | UvrC; The UvrABC repair system catalyzes the recognition and processing of DNA lesions. UvrC both incises the 5' and 3' sides of the lesion. The N-terminal half is responsible for the 3' incision and the C-terminal half is responsible for the 5' incision. (610 aa) |
| | vsr | DNA mismatch endonuclease; May nick specific sequences that contain T:G mispairs resulting from m5C-deamination. (156 aa) |
| | dcm | Similar to E. coli DNA cytosine methylase (AAC75027.1); Blastp hit to AAC75027.1 (472 aa), 83% identity in aa 1 - 472. (476 aa) |
| | umuC | Error-prone repair protein; Involved in UV protection and mutation. Essential for induced (or SOS) mutagenesis. May modify the DNA replication machinery to allow bypass synthesis across a damaged template. (422 aa) |
| | umuD | Error-prone repair: SOS-response transcriptional repressor; Involved in UV protection and mutation. Essential for induced (or SOS) mutagenesis. May modify the DNA replication machinery to allow bypass synthesis across a damaged template. (139 aa) |
| | sbcB | 3' --> 5' specific; deoxyribophosphodiesterase; similar to E. coli exonuclease I, 3' --> 5' specific; deoxyribophosphodiesterase (AAC75072.1); Blastp hit to AAC75072.1 (475 aa), 93% identity in aa 8 - 475. (476 aa) |
| | alkA | Inducible; similar to E. coli 3-methyl-adenine DNA glycosylase II, inducible (AAC75129.1); Blastp hit to AAC75129.1 (282 aa), 74% identity in aa 1 - 279. (289 aa) |
| | nfo | Endonuclease IV; Endonuclease IV plays a role in DNA repair. It cleaves phosphodiester bonds at apurinic or apyrimidinic (AP) sites, generating a 3'-hydroxyl group and a 5'-terminal sugar phosphate. (285 aa) |
| | setB | Proton efflux pump; Involved in the efflux of sugars. The physiological role may be the detoxification of non-metabolizable sugar analogs. Can transport lactose and glucose (By similarity); Belongs to the major facilitator superfamily. Set transporter family. (393 aa) |
| | alkB | DNA repair system specific for alkylated DNA; Dioxygenase that repairs alkylated DNA and RNA containing 3- methylcytosine or 1-methyladenine by oxidative demethylation. Has highest activity towards 3-methylcytosine. Has lower activity towards alkylated DNA containing ethenoadenine, and no detectable activity towards 1-methylguanine or 3-methylthymine. Accepts double-stranded and single-stranded substrates. Requires molecular oxygen, alpha- ketoglutarate and iron. Provides extensive resistance to alkylating agents such as MMS and DMS (SN2 agents), but not to MMNG and MNU (SN1 agents) (B [...] (216 aa) |
| | ada | O6-methylguanine-DNA methyltransferase; Involved in the cellular defense against the biological effects of O6-methylguanine (O6-MeG) and O4-methylthymine (O4-MeT) in DNA. Repairs the methylated nucleobase in DNA by stoichiometrically transferring the methyl group to a cysteine residue in the enzyme. This is a suicide reaction: the enzyme is irreversibly inactivated; In the C-terminal section; belongs to the MGMT family. (353 aa) |
| | ddg | Cold shock-induced palmitoleoyl transferase; Catalyzes the transfer of palmitoleate from palmitoleoyl-acyl carrier protein (ACP) to Kdo(2)-lipid IV(A) to form Kdo(2)- (palmitoleoyl)-lipid IV(A); Belongs to the LpxL/LpxM/LpxP family. LpxP subfamily. (306 aa) |
| | lig | DNA ligase; DNA ligase that catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double- stranded DNA using NAD as a coenzyme and as the energy source for the reaction. It is essential for DNA replication and repair of damaged DNA. (671 aa) |
| | bcp | Thioredoxin dependent thiol peroxidase; Similar to E. coli bacterioferritin comigratory protein (AAC75533.1); Blastp hit to AAC75533.1 (156 aa), 98% identity in aa 1 - 156. (156 aa) |
| | hmpA | Dihydropteridine reductase 2; Is involved in NO detoxification in an aerobic process, termed nitric oxide dioxygenase (NOD) reaction that utilizes O(2) and NAD(P)H to convert NO to nitrate, which protects the bacterium from various noxious nitrogen compounds. Therefore, plays a central role in the inducible response to nitrosative stress. Belongs to the globin family. Two-domain flavohemoproteins subfamily. (396 aa) |
| | yfhK | Putative sensory kinase in regulatory system; Similar to E. coli putative 2-component sensor protein (AAC75609.1); Blastp hit to AAC75609.1 (496 aa), 87% identity in aa 19 - 496. (480 aa) |
| | recO | Gap repair gene; Involved in DNA repair and RecF pathway recombination; Belongs to the RecO family. (242 aa) |
| | STM2612 | Gifsy-1 prophage protein; Similar to morphogenesis protein of phage B103; similar to E. coli bacteriophage lambda lysozyme homolog (AAC73656.1); Blastp hit to AAC73656.1 (165 aa), 39% identity in aa 35 - 161. (150 aa) |
| | rpoE | Sigma E (sigma 24) factor of RNA polymerase; Sigma factors are initiation factors that promote the attachment of RNA polymerase (RNAP) to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma-E controls the envelope stress response, responding to periplasmic protein stress, increased levels of periplasmic lipopolysaccharide (LPS) as well as acid stress, heat shock and oxidative stress; it controls protein processing in the extracytoplasmic compartment (By similarity). (191 aa) |
| | ung | uracil-DNA-glycosylase; Excises uracil residues from the DNA which can arise as a result of misincorporation of dUMP residues by DNA polymerase or due to deamination of cytosine; Belongs to the uracil-DNA glycosylase (UDG) superfamily. UNG family. (229 aa) |
| | clpB | ATP-dependent protease; Part of a stress-induced multi-chaperone system, it is involved in the recovery of the cell from heat-induced damage, in cooperation with DnaK, DnaJ and GrpE. Acts before DnaK, in the processing of protein aggregates. Protein binding stimulates the ATPase activity; ATP hydrolysis unfolds the denatured protein aggregates, which probably helps expose new hydrophobic binding sites on the surface of ClpB-bound aggregates, contributing to the solubilization and refolding of denatured protein aggregates by DnaK (By similarity). Required for colonization of the gastroi [...] (857 aa) |
| | recN | Protein used in recombination and DNA repair; May be involved in recombinational repair of damaged DNA. (553 aa) |
| | STM2715 | Fels-2 prophage protein; Probable prophage lysozyme; similar to E. coli bacteriophage lambda lysozyme homolog (AAC73656.1); Blastp hit to AAC73656.1 (165 aa), 36% identity in aa 35 - 163. (169 aa) |
| | STM2727 | Fels-2 prophage protein; Similar to protein in phage 186, and to retron in E coli; similar to E. coli damage-inducible protein I (AAC74145.1); Blastp hit to AAC74145.1 (81 aa), 29% identity in aa 1 - 77. (101 aa) |
