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| | 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) |
| | rpoZ | RNA polymerase, omega subunit; Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits (By similarity). (91 aa) |
| | spoU | Putative tRNA/rRNA methyltransferase; Catalyzes the 2'-O methylation of guanosine at position 18 in tRNA; Belongs to the class IV-like SAM-binding methyltransferase superfamily. RNA methyltransferase TrmH family. (229 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) |
| | STM3766 | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC75365.1); Blastp hit to AAC75365.1 (296 aa), 67% identity in aa 1 - 278, 45% identity in aa 216 - 296. (313 aa) |
| | STM3768 | Putative selenocysteine synthase (L-seryl-tRNA(Ser) selenium transferase). (369 aa) |
| | gyrB | DNA gyrase, subunit B; A type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to modulate DNA topology and maintain chromosomes in an underwound state, and also catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes and knotted rings. Replenishes negative supercoiling downstream of highly transcribed genes to help control overall chromosomal supercoiling density. E.coli makes 15% more negative supercoils in pBR322 plasmid DNA than S.typhimurium; the S.typhimurium GyrB s [...] (804 aa) |
| | dnaN | DNA polymerase III, beta-subunit; Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of [...] (366 aa) |
| | rnpA | RNase P; RNaseP catalyzes the removal of the 5'-leader sequence from pre-tRNA to produce the mature 5'-terminus. It can also cleave other RNA substrates such as 4.5S RNA. The protein component plays an auxiliary but essential role in vivo by binding to the 5'-leader sequence and broadening the substrate specificity of the ribozyme. (119 aa) |
| | STM3846 | Putative reverse transcriptase; RNA-dependent DNA polymerase. (289 aa) |
| | gidB | Associated with glucose-inhibited division; Specifically methylates the N7 position of guanine in position 527 of 16S rRNA. (207 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) |
| | rhlB | Putative helicase; DEAD-box RNA helicase involved in RNA degradation. Has RNA- dependent ATPase activity and unwinds double-stranded RNA. Belongs to the DEAD box helicase family. RhlB subfamily. (421 aa) |
| | rho | Transcription termination factor Rho; Facilitates transcription termination by a mechanism that involves Rho binding to the nascent RNA, activation of Rho's RNA- dependent ATPase activity, and release of the mRNA from the DNA template. (419 aa) |
| | xerC | Putative site-specific integrase/recombinase; Site-specific tyrosine recombinase, which acts by catalyzing the cutting and rejoining of the recombining DNA molecules. Binds cooperatively to specific DNA consensus sequences that are separated from XerD binding sites by a short central region, forming the heterotetrameric XerC-XerD complex that recombines DNA substrates. The complex is essential to convert dimers of the bacterial chromosome into monomers to permit their segregation at cell division. It also contributes to the segregational stability of plasmids. In the complex XerC speci [...] (300 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) |
| | yigW | Putative hydrolase of PHP superfamily; 3'-5' exonuclease that prefers single-stranded DNA and RNA. May play a role in the H(2)O(2)-induced DNA damage repair. Belongs to the metallo-dependent hydrolases superfamily. TatD-type hydrolase family. TatD subfamily. (260 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) |
| | yihZ | D-Tyr-tRNA(Tyr) deacylase; An aminoacyl-tRNA editing enzyme that deacylates mischarged D-aminoacyl-tRNAs. Also deacylates mischarged glycyl-tRNA(Ala), protecting cells against glycine mischarging by AlaRS. Acts via tRNA- based rather than protein-based catalysis; rejects L-amino acids rather than detecting D-amino acids in the active site. By recycling D- aminoacyl-tRNA to D-amino acids and free tRNA molecules, this enzyme counteracts the toxicity associated with the formation of D-aminoacyl- tRNA entities in vivo and helps enforce protein L-homochirality. Belongs to the DTD family. (145 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) |
| | trmA | tRNA (uracil-5-)-methyltransferase; Catalyzes the formation of 5-methyl-uridine at position 54 (m5U54) in all tRNAs. (366 aa) |
| | rpoB | RNA polymerase, beta subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1342 aa) |
| | rpoC | RNA polymerase, beta prime subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1407 aa) |
| | yjaD | Putative NTP pyrophosphohydrolases containing a Zn-finger; Probably nucleic-acid-binding; NADH pyrophosphatase. (SW:NUDC_SALTY). (257 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) |
| | yjbC | Putative pseudouridine synthase; Dual specificity enzyme that catalyzes the synthesis of pseudouridine from uracil-2604 in 23S ribosomal RNA and from uracil-35 in the anticodon of tRNA(Tyr); Belongs to the pseudouridine synthase RsuA family. (289 aa) |
| | yjbN | Putative TIM-barrel enzyme; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines. Specifically modifies U20 and U20a in tRNAs; Belongs to the Dus family. DusA subfamily. (332 aa) |
| | dnaB | Putative replicative DNA helicase; Participates in initiation and elongation during chromosome replication; it exhibits DNA-dependent ATPase activity and contains distinct active sites for ATP binding, DNA binding, and interaction with DnaC protein, primase, and other prepriming proteins. (471 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) |
| | yjeA | Putative 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) |
| | orn | Oligoribonuclease; 3'-to-5' exoribonuclease specific for small oligoribonucleotides; Belongs to the oligoribonuclease family. (181 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) |
| | miaA | Delta(2)-isopentenylpyrophosphate tRNA-adenosine transferase; Catalyzes the transfer of a dimethylallyl group onto the adenine at position 37 in tRNAs that read codons beginning with uridine, leading to the formation of N6-(dimethylallyl)adenosine (i(6)A); Belongs to the IPP transferase family. (316 aa) |
| | vacB | Putative exoribonuclease; 3'-5' exoribonuclease that releases 5'-nucleoside monophosphates and is involved in maturation of structured RNAs. Belongs to the RNR ribonuclease family. RNase R subfamily. (812 aa) |
| | yjfH | Putative tRNA/rRNA methyltransferase; Specifically methylates the ribose of guanosine 2251 in 23S rRNA; Belongs to the class IV-like SAM-binding methyltransferase superfamily. RNA methyltransferase TrmH family. RlmB subfamily. (243 aa) |
| | STM4446 | Putative selenocysteine synthase; [L-seryl-tRNA(Ser) selenium transferase]. (372 aa) |
| | STM4457 | Putative transposase; Unknown (gi|4558865). (148 aa) |
| | miaE | Hydroxylase for synthesis of 2-methylthio-cis-ribozeatin in tRNA; Production of the modified nucleoside 2-methylthio-cis- ribozeatin (MS[2]IO[6]A) found in some tRNAs. Catalyzes the oxygen- dependent transformation of MS[2]I[6]A into MS[2]IO[6]A. (270 aa) |
| | valS | Valine tRNA synthetase; Catalyzes the attachment of valine to tRNA(Val). As ValRS can inadvertently accommodate and process structurally similar amino acids such as threonine, to avoid such errors, it has a 'posttransfer' editing activity that hydrolyzes mischarged Thr-tRNA(Val) in a tRNA- dependent manner; Belongs to the class-I aminoacyl-tRNA synthetase family. ValS type 1 subfamily. (951 aa) |
| | holC | Similar to E. coli DNA polymerase III, chi subunit (AAC77216.1); Blastp hit to AAC77216.1 (147 aa), 95% identity in aa 1 - 147. (160 aa) |
| | STM4489 | Putative superfamily I DNA helicases; Similar to E. coli putative frameshift suppressor (AAC77264.1); Blastp hit to AAC77264.1 (338 aa), 68% identity in aa 1 - 338. (1171 aa) |
| | STM4490 | Putative Mrr restriction endonuclease. (329 aa) |
| | STM4494 | Putative ABC-type sugar/spermidine/putrescine transport systems, ATPase component. (363 aa) |
| | STM0900 | Putative Fels-1 prophage DNA or RNA helicases of superfamily II; Similar to E. coli putative ATP-dependent helicase (AAC75245.1); Blastp hit to AAC75245.1 (586 aa), 29% identity in aa 124 - 378, 25% identity in aa 20 - 158. (527 aa) |
| | ybjF | Putative tRNA (uracil-5-)-methyltransferase; Catalyzes the formation of 5-methyl-uridine at position 747 (m5U747) in 23S rRNA; Belongs to the class I-like SAM-binding methyltransferase superfamily. RNA M5U methyltransferase family. RlmC subfamily. (376 aa) |
| | ybiN | Putative SAM-dependent methyltransferase; Specifically methylates the adenine in position 1618 of 23S rRNA. (308 aa) |
| | dinG | LexA regulated (SOS) repair enzyme; DNA-dependent ATPase and 5'-3' DNA helicase. (714 aa) |
| | rhlE | Putative ATP-dependent RNA helicase; DEAD-box RNA helicase involved in ribosome assembly. Has RNA- dependent ATPase activity and unwinds double-stranded RNA. (454 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) |
| | 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) |
| | 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) |
| | glnS | Similar to E. coli glutamine tRNA synthetase (AAC73774.1); Blastp hit to AAC73774.1 (554 aa), 96% identity in aa 1 - 554. (555 aa) |
| | ybeY | Putative metal-dependent hydrolase; Single strand-specific metallo-endoribonuclease involved in late-stage 70S ribosome quality control and in maturation of the 3' terminus of the 16S rRNA. (157 aa) |
| | STM0650 | Similar to E. coli putative hydrolase (AAC76162.1); Blastp hit to AAC76162.1 (523 aa), 35% identity in aa 167 - 521, 32% identity in aa 119 - 223. (390 aa) |
| | leuS | Similar to E. coli leucine tRNA synthetase (AAC73743.1); Blastp hit to AAC73743.1 (860 aa), 95% identity in aa 1 - 860; Belongs to the class-I aminoacyl-tRNA synthetase family. (860 aa) |
| | holA | Similar to E. coli DNA polymerase III, delta subunit (AAC73741.1); Blastp hit to AAC73741.1 (343 aa), 89% identity in aa 1 - 343. (343 aa) |
| | ybeA | Putative cytoplasmic protein; Specifically methylates the pseudouridine at position 1915 (m3Psi1915) in 23S rRNA; Belongs to the RNA methyltransferase RlmH family. (155 aa) |
| | STM1865 | Putative cytoplasmic protein; Similar to E. coli inversion of adjacent DNA; at locus of e14 element (AAC74242.1); Blastp hit to AAC74242.1 (184 aa), 78% identity in aa 143 - 180. (41 aa) |
| | rna | Similar to E. coli RNase I, cleaves phosphodiester bond between any two nucleotides (AAC73712.1); Blastp hit to AAC73712.1 (268 aa), 73% identity in aa 1 - 268; Belongs to the RNase T2 family. (268 aa) |
| | STM0556 | Putative transposase. (72 aa) |
| | cysS | Similar to E. coli cysteine tRNA synthetase (AAC73628.1); Blastp hit to AAC73628.1 (461 aa), 94% identity in aa 1 - 461; Belongs to the class-I aminoacyl-tRNA synthetase family. (461 aa) |
| | ybbB | Putative ATPase; Involved in the post-transcriptional modification of the uridine at the wobble position (U34) of tRNA(Lys), tRNA(Glu) and tRNA(Gln). Catalyzes the conversion of 2-thiouridine (S2U-RNA) to 2-selenouridine (Se2U-RNA). Acts in a two-step process involving geranylation of 2-thiouridine (S2U) to S-geranyl-2-thiouridine (geS2U) and subsequent selenation of the latter derivative to 2-selenouridine (Se2U) in the tRNA chain (Probable); Belongs to the SelU family. (364 aa) |
| | ybaK | Putative cytoplasmic protein; Functions in trans to edit the amino acid from incorrectly charged Cys-tRNA(Pro) via a Cys-tRNA(Pro) deacylase activity. (159 aa) |
| | dnaX | DNA polymerase III, tau and gamma subunits; DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity (By similarity). [Isoform gamma]: chain seems to interact with the delta subunit to transfer the beta subunit on the DNA; Belongs to the DnaX/STICHEL family. (642 aa) |
| | STM0479 | Putative transposase; Similar to E. coli orf, hypothetical protein (AAC75365.1); Blastp hit to AAC75365.1 (296 aa), 49% identity in aa 7 - 296. (311 aa) |
| | thiI | Sulfur 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) |
| | xseB | Exonuclease VII, small subunit; Bidirectionally degrades single-stranded DNA into large acid- insoluble oligonucleotides, which are then degraded further into small acid-soluble oligonucleotides; Belongs to the XseB family. (80 aa) |
| | tgt | tRNA-guanine transglycosylase; Catalyzes the base-exchange of a guanine (G) residue with the queuine precursor 7-aminomethyl-7-deazaguanine (PreQ1) at position 34 (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp, -Asn, -His and -Tyr). Catalysis occurs through a double-displacement mechanism. The nucleophile active site attacks the C1' of nucleotide 34 to detach the guanine base from the RNA, forming a covalent enzyme-RNA intermediate. The proton acceptor active site deprotonates the incoming PreQ1, allowing a nucleophilic attack on the C1' of the ribose to form the [...] (375 aa) |
| | queA | S-adenosylmethionine-tRNA ribosyltransferase-isomerase; Transfers and isomerizes the ribose moiety from AdoMet to the 7-aminomethyl group of 7-deazaguanine (preQ1-tRNA) to give epoxyqueuosine (oQ-tRNA). (354 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) |
| | 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) |
| | mod | DNA methylase; Binds the system-specific DNA recognition site 5'-CAGAG-3'. Necessary for restriction and for methylation of A-4. (652 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) |
| | STM0297 | Putative transposase. (65 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) |
| | rnhA | RNase HI; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. (155 aa) |
| | yaeB | Putative regulator; Similar to E. coli orf, hypothetical protein (AAC73306.1); Blastp hit to AAC73306.1 (235 aa), 89% identity in aa 1 - 235. (235 aa) |
| | proS | Proline tRNA synthetase; Catalyzes the attachment of proline to tRNA(Pro) in a two- step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro). As ProRS can inadvertently accommodate and process non-cognate amino acids such as alanine and cysteine, to avoid such errors it has two additional distinct editing activities against alanine. One activity is designated as 'pretransfer' editing and involves the tRNA(Pro)-independent hydrolysis of activated Ala-AMP. The other activity is designated 'posttransfer' editing and involves de [...] (572 aa) |
| | yaeJ | putative-tRNA hydrolase domain protein; Similar to E. coli orf, hypothetical protein (AAC73302.1); Blastp hit to AAC73302.1 (140 aa), 85% identity in aa 1 - 136. (140 aa) |
| | dnaE | DNA polymerase III, alpha subunit; DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity. The alpha chain is the DNA polymerase; Belongs to the DNA polymerase type-C family. DnaE subfamily. (1160 aa) |
| | rnhB | RNAse HII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids; Belongs to the RNase HII family. (198 aa) |
| | hrpB | Similar to E. coli helicase, ATP-dependent (AAC73259.1); Blastp hit to AAC73259.1 (824 aa), 84% identity in aa 1 - 824. (824 aa) |
| | ligT | 2'-5' RNA ligase; Hydrolyzes RNA 2',3'-cyclic phosphodiester to an RNA 2'- phosphomonoester; Belongs to the 2H phosphoesterase superfamily. ThpR family. (176 aa) |
| | yadB | Putative glutamyl t-RNA synthetase; Catalyzes the tRNA-independent activation of glutamate in presence of ATP and the subsequent transfer of glutamate onto a tRNA(Asp). Glutamate is transferred on the 2-amino-5-(4,5-dihydroxy-2- cyclopenten-1-yl) moiety of the queuosine in the wobble position of the QUC anticodon; Belongs to the class-I aminoacyl-tRNA synthetase family. GluQ subfamily. (313 aa) |
| | yabC | Putative S-adenosyl methionine adenyltransferase; Specifically methylates the N4 position of cytidine in position 1402 (C1402) of 16S rRNA. (313 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) |
| | hepA | RNA polymerase associated protein; Transcription regulator that activates transcription by stimulating RNA polymerase (RNAP) recycling in case of stress conditions such as supercoiled DNA or high salt concentrations. Probably acts by releasing the RNAP, when it is trapped or immobilized on tightly supercoiled DNA. Does not activate transcription on linear DNA. Probably not involved in DNA repair; Belongs to the SNF2/RAD54 helicase family. RapA subfamily. (968 aa) |
| | rluA | 23S rRNA pseudouridylate 746 synthase; Dual specificity enzyme that catalyzes the synthesis of pseudouridine from uracil-746 in 23S ribosomal RNA and from uracil-32 in the anticodon stem and loop of transfer RNAs. (219 aa) |
| | ksgA | S-adenosylmethionine-6-N',N'-adenosyl (rRNA) dimethyltransferase; Specifically dimethylates two adjacent adenosines (A1518 and A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA in the 30S particle. May play a critical role in biogenesis of 30S subunits. (273 aa) |
| | hin | H inversion protein; A DNA fragment of approximately 900 base pairs, adjacent to the fljB (H2) gene, which specifies the synthesis of phase-2 flagellin, can exist in either orientation with respect to fljB. The orientation of the inversion region controls expression of fljB. The hin gene occupies about two-thirds of the inversion region; it is required for the inversion of the fljB controlling region. (190 aa) |
| | alaS | alanyl-tRNA synthetase; Catalyzes the attachment of alanine to tRNA(Ala) in a two- step reaction: alanine is first activated by ATP to form Ala-AMP and then transferred to the acceptor end of tRNA(Ala). Also edits incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) via its editing domain; Belongs to the class-II aminoacyl-tRNA synthetase family. (876 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) |
| | STM4495 | Putative type II restriction enzyme, methylase subunit. (1225 aa) |
| | trpS2 | Putative tryptophanyl-tRNA synthetase; Similar to E. coli tryptophan tRNA synthetase (AAC76409.1); Blastp hit to AAC76409.1 (334 aa), 26% identity in aa 2 - 329; Belongs to the class-I aminoacyl-tRNA synthetase family. (337 aa) |
| | STM4518 | Putative inner membrane protein; Similar to E. coli orf, hypothetical protein (AAC75304.1); Blastp hit to AAC75304.1 (299 aa), 45% identity in aa 187 - 277, 73% identity in aa 1 - 42, 36% identity in aa 216 - 295. (171 aa) |
| | yjiW | Putative SOS response protein; Involved in the degradation and recycling of damaged RNA. It is itself a target for degradation by the ATP-dependent protease Lon. Belongs to the SymE family. (110 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) |
| | STM4549 | Putative cytoplasmic protein. (152 aa) |
| | rsmC | 16S ribosomal rRNA; Specifically methylates the guanine in position 1207 of 16S rRNA in the 30S particle; Belongs to the methyltransferase superfamily. RsmC family. (342 aa) |
| | ygbO | Putative hydrogenase subunit; Responsible for synthesis of pseudouridine from uracil-13 in transfer RNAs; Belongs to the pseudouridine synthase TruD family. (349 aa) |
| | holD | DNA polymerase III, psi subunit; DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity. The exact function of the psi subunit is unknown. (145 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) |
| | 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) |
| | ygcA | Putative RNA methyltransferase; Catalyzes the formation of 5-methyl-uridine at position 1939 (m5U1939) in 23S rRNA; Belongs to the class I-like SAM-binding methyltransferase superfamily. RNA M5U methyltransferase family. RlmD subfamily. (431 aa) |
| | yqcB | Putative synthase; Responsible for synthesis of pseudouridine from uracil-65 in transfer RNAs; Belongs to the pseudouridine synthase RluA family. (260 aa) |
| | exo | Exonuclease IX, 5'-3' exonuclease; Has flap endonuclease activity. During DNA replication, flap endonucleases cleave the 5'-overhanging flap structure that is generated by displacement synthesis when DNA polymerase encounters the 5'-end of a downstream Okazaki fragment. (271 aa) |
| | ygdL | Similar to E. coli putative enzyme (AAC75854.1); Blastp hit to AAC75854.1 (268 aa), 93% identity in aa 1 - 267. (268 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) |
| | ygdP | Putative invasion protein; Accelerates the degradation of transcripts by removing pyrophosphate from the 5'-end of triphosphorylated RNA, leading to a more labile monophosphorylated state that can stimulate subsequent ribonuclease cleavage; Belongs to the Nudix hydrolase family. RppH subfamily. (176 aa) |
| | vapC | Putative nucleic acid-binding protein; Toxic component of a type II toxin-antitoxin (TA) system. A site-specific tRNA-(fMet) endonuclease, it cleaves both charged and uncharged tRNA-(fMet) between positions 38 and 39 at the anticodon stem-loop boundary. Does not cleave tRNA(Met), tRNA(Arg2), tRNA(His), tRNA(Leu), tRNA(Phe) tRNA(Thr1), tRNA(Tyr) or tRNA(Val). Overexpression in E.coli inhibits translation, leads to loss of cell growth and degradation of tRNA(fMet), these effects are neutralized by expression of cognate antitoxin VapB. Expression also activates translation initiation at c [...] (132 aa) |
| | lysS | Similar to E. coli lysine tRNA synthetase, constitutive; suppressor of ColE1 mutation in primer RNA (AAC75928.1); Blastp hit to AAC75928.1 (505 aa), 95% identity in aa 1 - 505; Belongs to the class-II aminoacyl-tRNA synthetase family. (505 aa) |
| | xerD | Site-specific recombinase; Site-specific tyrosine recombinase, which acts by catalyzing the cutting and rejoining of the recombining DNA molecules. Binds cooperatively to specific DNA consensus sequences that are separated from XerC binding sites by a short central region, forming the heterotetrameric XerC-XerD complex that recombines DNA substrates. The complex is essential to convert dimers of the bacterial chromosome into monomers to permit their segregation at cell division. It also contributes to the segregational stability of plasmids. In the complex XerD specifically exchanges t [...] (298 aa) |
| | endA | Similar to E. coli DNA-specific endonuclease I (AAC75982.1); Blastp hit to AAC75982.1 (235 aa), 87% identity in aa 1 - 235. (235 aa) |
| | yggJ | Putative cytoplasmic protein; Specifically methylates the N3 position of the uracil ring of uridine 1498 (m3U1498) in 16S rRNA. Acts on the fully assembled 30S ribosomal subunit. (259 aa) |
| | yggH | Putative S-adenosylmethionine-dependent methyltransferase; Catalyzes the formation of N(7)-methylguanine at position 46 (m7G46) in tRNA; Belongs to the class I-like SAM-binding methyltransferase superfamily. TrmB family. (239 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) |
| | STM3154 | Putative ATP-dependent RNA helicase-like protein. (171 aa) |
| | parC | DNA topoisomerase IV, subunit A; Topoisomerase IV is essential for chromosome segregation. It relaxes supercoiled DNA. Performs the decatenation events required during the replication of a circular DNA molecule. Belongs to the type II topoisomerase GyrA/ParC subunit family. ParC type 1 subfamily. (752 aa) |
| | parE | DNA topoisomerase IV, subunit B; Topoisomerase IV is essential for chromosome segregation. It relaxes supercoiled DNA. Performs the decatenation events required during the replication of a circular DNA molecule. Belongs to the type II topoisomerase family. ParE type 1 subfamily. (630 aa) |
| | cca | tRNA nucleotidyl transferase; Catalyzes the addition and repair of the essential 3'- terminal CCA sequence in tRNAs without using a nucleic acid template. Adds these three nucleotides in the order of C, C, and A to the tRNA nucleotide-73, using CTP and ATP as substrates and producing inorganic pyrophosphate. Also shows phosphatase, 2'-nucleotidase and 2',3'-cyclic phosphodiesterase activities. These phosphohydrolase activities are probably involved in the repair of the tRNA 3'-CCA terminus degraded by intracellular RNases. (413 aa) |
| | dnaG | DNA primase; RNA polymerase that catalyzes the synthesis of short RNA molecules used as primers for DNA polymerase during DNA replication. (581 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) |
| | ygjO | Putative methyltransferase; Specifically methylates the guanine in position 1835 (m2G1835) of 23S rRNA. (378 aa) |
| | yraL | Putative methyltransferase; Catalyzes the 2'-O-methylation of the ribose of cytidine 1402 (C1402) in 16S rRNA. (287 aa) |
| | 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) |
| | pnp | Polynucleotide phosphorylase; Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. Is a global regulator of virulence and persistency. (711 aa) |
| | truB | tRNA pseudouridine 5S synthase; Responsible for synthesis of pseudouridine from uracil-55 in the psi GC loop of transfer RNAs; Belongs to the pseudouridine synthase TruB family. Type 1 subfamily. (314 aa) |
| | ftsJ | 23S rRNA methyltransferase; Specifically methylates the uridine in position 2552 of 23S rRNA at the 2'-O position of the ribose in the fully assembled 50S ribosomal subunit. (208 aa) |
| | cafA | RNase G; Similar to E. coli bundles of cytoplasmic filaments (AAC76279.1); Blastp hit to AAC76279.1 (495 aa), 96% identity in aa 7 - 495. (489 aa) |
| | yhdG | Putative TIM-barrel enzyme; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines; Belongs to the Dus family. DusB subfamily. (321 aa) |
| | yhdJ | Similar to E. coli putative methyltransferase (AAC76294.1); Blastp hit to AAC76294.1 (296 aa), 80% identity in aa 3 - 285; Belongs to the N(4)/N(6)-methyltransferase family. (294 aa) |
| | yrdD | Similar to E. coli putative DNA topoisomerase (AAC76308.1); Blastp hit to AAC76308.1 (169 aa), 33% identity in aa 3 - 157. (180 aa) |
| | fmt | 10-formyltetrahydrofolate:L-methionyl-tRNA(fMet) N-formyltransferase; Attaches a formyl group to the free amino group of methionyl- tRNA(fMet). The formyl group appears to play a dual role in the initiator identity of N-formylmethionyl-tRNA by promoting its recognition by IF2 and preventing the misappropriation of this tRNA by the elongation apparatus. (315 aa) |
| | sun | Putative rRNA methylase; Specifically methylates the cytosine at position 967 (m5C967) of 16S rRNA. (429 aa) |
| | rpoA | RNA polymerase, alpha subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (329 aa) |
| | trpS | Tryptophan tRNA synthetase; Catalyzes the attachment of tryptophan to tRNA(Trp). Belongs to the class-I aminoacyl-tRNA synthetase family. (334 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) |
| | STM3508 | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC75365.1); Blastp hit to AAC75365.1 (296 aa), 67% identity in aa 1 - 296. (304 aa) |
| | STM3516 | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC73329.1); Blastp hit to AAC73329.1 (92 aa), 78% identity in aa 1 - 91. (91 aa) |
| | rtcA | RNA 3'-terminal phosphate cyclase (with b3419); Catalyzes the conversion of 3'-phosphate to a 2',3'-cyclic phosphodiester at the end of RNA. The mechanism of action of the enzyme occurs in 3 steps: (A) adenylation of the enzyme by ATP; (B) transfer of adenylate to an RNA-N3'P to produce RNA-N3'PP5'A; (C) and attack of the adjacent 2'-hydroxyl on the 3'-phosphorus in the diester linkage to produce the cyclic end product. The biological role of this enzyme is unknown but it is likely to function in some aspects of cellular RNA processing. (339 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) |
| | 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) |
| | lasT | Putative tRNA/tRNA methyltransferase; Catalyzes the formation of 2'O-methylated cytidine (Cm32) or 2'O-methylated uridine (Um32) at position 32 in tRNA. (228 aa) |
| | yhhF | Putative methyltransferase; Specifically methylates the guanine in position 966 of 16S rRNA in the assembled 30S particle; Belongs to the methyltransferase superfamily. RsmD family. (198 aa) |
| | ileS | Isoleucine tRNA synthetase; Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile). Belongs to the class-I aminoacyl-tRNA synthetase family. IleS type 1 subfamily. (944 aa) |
| | STM1860 | Putative transposase; Required for the transposition of the insertion element. (285 aa) |
| | yebU | Putative rRNA methyltransferase; Specifically methylates the cytosine at position 1407 (m5C1407) of 16S rRNA. (479 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) |
| | rnd | RNase D; Exonuclease involved in the 3' processing of various precursor tRNAs. Initiates hydrolysis at the 3'-terminus of an RNA molecule and releases 5'-mononucleotides; Belongs to the RNase D family. (375 aa) |
| | pth | peptidyl-tRNA hydrolase; The natural substrate for this enzyme may be peptidyl-tRNAs which drop off the ribosome during protein synthesis. Involved in lambda inhibition of host protein synthesis. PTH activity may, directly or indirectly, be the target for lambda bar RNA leading to rap cell death (By similarity). (202 aa) |
| | hemA | Glutamyl tRNA reductase; Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA). (418 aa) |
| | trpH | trpR controlled transcriptional unit in the 5' upstream region of the trp operon; Efficiently catalyzes the hydrolysis of the 3'-phosphate from 3',5'-bis-phosphonucleotides as well as the successive hydrolysis of 5'-phosphomononucleotides from the 5'-end of short pieces of RNA and DNA, with no specificity toward the identity of the nucleotide base. Is more efficient at hydrolyzing RNA oligonucleotides than DNA oligonucleotides. This enzyme can also hydrolyze annealed DNA duplexes, albeit at a catalytic efficiency lower than that of the corresponding single-stranded oligonucleotides. (293 aa) |
| | yciL | Putative ribosomal large subunit pseudouridine synthase; Responsible for synthesis of pseudouridine from uracil-2605 in 23S ribosomal RNA; Belongs to the pseudouridine synthase RsuA family. (291 aa) |
| | topA | DNA topoisomerase type I, omega protein; Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA- (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, th [...] (865 aa) |
| | rnb | RNase II; Involved in mRNA degradation. Hydrolyzes single-stranded polyribonucleotides processively in the 3' to 5' direction. (644 aa) |
| | STM1665 | Putative cytoplasmic protein. (228 aa) |
| | ydaL | Putative Smr domain protein; Similar to E. coli orf, hypothetical protein (AAC74422.1); Blastp hit to AAC74422.1 (187 aa), 86% identity in aa 1 - 187. (187 aa) |
| | dbpA | ATP-dependent RNA helicase; DEAD-box RNA helicase involved in the assembly of the 50S ribosomal subunit. Has an RNA-dependent ATPase activity, which is specific for 23S rRNA, and a 3' to 5' RNA helicase activity that uses the energy of ATP hydrolysis to destabilize and unwind short rRNA duplexes. (457 aa) |
| | STM1650 | Putative reverse transcriptase. (99 aa) |
| | hrpA | Similar to E. coli helicase, ATP-dependent (AAC74495.1); Blastp hit to AAC74495.1 (1281 aa), 95% identity in aa 1 - 1280. (1300 aa) |
| | STM1548 | Putative S-adenosylmethionine:tRNA-ribosyltransferase-isomerase; Transfers and isomerizes the ribose moiety from AdoMet to the 7-aminomethyl group of 7-deazaguanine (preQ1-tRNA) to give epoxyqueuosine (oQ-tRNA). (346 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) |
| | tyrS | Tyrosine tRNA synthetase; Catalyzes the attachment of tyrosine to tRNA(Tyr) in a two- step reaction: tyrosine is first activated by ATP to form Tyr-AMP and then transferred to the acceptor end of tRNA(Tyr); Belongs to the class-I aminoacyl-tRNA synthetase family. TyrS type 1 subfamily. (424 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) |
| | pheT | Phenylalanine tRNA synthetase, beta-subunit; phenylalanyl-tRNA synthetase beta chain. (SW:SYFB_SALTY); Belongs to the phenylalanyl-tRNA synthetase beta subunit family. Type 1 subfamily. (795 aa) |
| | pheS | Similar to E. coli phenylalanine tRNA synthetase, alpha-subunit (AAC74784.1); Blastp hit to AAC74784.1 (327 aa), 97% identity in aa 1 - 327. (327 aa) |
| | thrS | Threonine tRNA synthetase; Catalyzes the attachment of threonine to tRNA(Thr) in a two- step reaction: L-threonine is first activated by ATP to form Thr-AMP and then transferred to the acceptor end of tRNA(Thr). Also edits incorrectly charged L-seryl-tRNA(Thr). (642 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) |
| | ydiZ | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC74794.1); Blastp hit to AAC74794.1 (96 aa), 69% identity in aa 1 - 94. (96 aa) |
| | topB | DNA topoisomerase III; Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA- (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA su [...] (649 aa) |
| | yeaK | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC74857.1); Blastp hit to AAC74857.1 (167 aa), 87% identity in aa 1 - 165. (172 aa) |
| | ymfC | Putative ribosomal large subunit pseudouridine synthase; Responsible for synthesis of pseudouridine from uracil-2457 in 23S ribosomal RNA; Belongs to the pseudouridine synthase RsuA family. (221 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) |
| | ycfH | Putative metal-dependent hydrolase; Similar to E. coli orf, hypothetical protein (AAC74184.1); Blastp hit to AAC74184.1 (265 aa), 93% identity in aa 1 - 265. (265 aa) |
| | holB | Similar to E. coli DNA polymerase III, delta prime subunit (AAC74183.1); Blastp hit to AAC74183.1 (334 aa), 79% identity in aa 1 - 334. (334 aa) |
| | rluC | 23S rRNA pseudouridylate synthase; Responsible for synthesis of pseudouridine from uracil at positions 955, 2504 and 2580 in 23S ribosomal RNA; Belongs to the pseudouridine synthase RluA family. (319 aa) |
| | rne | RNase E; Endoribonuclease that plays a central role in RNA processing and decay. Required for the maturation of 5S and 16S rRNAs and the majority of tRNAs. Also involved in the degradation of most mRNAs. Belongs to the RNase E/G family. RNase E subfamily. (1067 aa) |
| | holE | Similar to E. coli DNA polymerase III, theta subunit (AAC74912.1); Blastp hit to AAC74912.1 (76 aa), 88% identity in aa 1 - 76. (76 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) |
| | aspS | Aspartate tRNA synthetase; Catalyzes the attachment of L-aspartate to tRNA(Asp) in a two-step reaction: L-aspartate is first activated by ATP to form Asp- AMP and then transferred to the acceptor end of tRNA(Asp). Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily. (590 aa) |
| | yecP | Putative enzyme; Catalyzes carboxymethyl transfer from carboxy-S-adenosyl-L- methionine (Cx-SAM) to 5-hydroxyuridine (ho5U) to form 5- carboxymethoxyuridine (cmo5U) at position 34 in tRNAs. Belongs to the class I-like SAM-binding methyltransferase superfamily. CmoB family. (323 aa) |
| | argS | arginyl-tRNA synthetase. (SW:SYR_SALTY). (577 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) |
| | fliA | Sigma F (sigma 28) 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 controls the expression of flagella-related genes. May regulate the expression of genes involved in virulence. (239 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) |
| | 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) |
| | metG | Methionine tRNA synthetase; Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation. (677 aa) |
| | yohI | Putative nitrogen regulation protein; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines. Specifically modifies U16 in tRNAs. Belongs to the Dus family. DusC subfamily. (312 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) |
| | rsuA | 16S rRNA pseudouridylate 516 synthase; Responsible for synthesis of pseudouridine from uracil-516 in 16S ribosomal RNA. (231 aa) |
| | yejH | Similar to E. coli putative ATP-dependent helicase (AAC75245.1); Blastp hit to AAC75245.1 (586 aa), 95% identity in aa 1 - 586. (586 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) |
| | gyrA | DNA gyrase, subunit A; A type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to modulate DNA topology and maintain chromosomes in an underwound state, and also catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes and knotted rings. Replenishes negative supercoiling downstream of highly transcribed genes to help control overall chromosomal supercoiling density. E.coli makes 15% more negative supercoils in pBR322 plasmid DNA than S.typhimurium; the S.typhimurium GyrB s [...] (878 aa) |
| | elaC | Putative metal-dependent hydrolase; Zinc phosphodiesterase, which has both exoribonuclease and endoribonuclease activities. (305 aa) |
| | truA | Pseudouridylate synthase I; Formation of pseudouridine at positions 38, 39 and 40 in the anticodon stem and loop of transfer RNAs. (270 aa) |
| | mnmC | Putative peptidase; Catalyzes the last two steps in the biosynthesis of 5- methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at the wobble position (U34) in tRNA. Catalyzes the FAD-dependent demodification of cmnm(5)s(2)U34 to nm(5)s(2)U34, followed by the transfer of a methyl group from S-adenosyl-L-methionine to nm(5)s(2)U34, to form mnm(5)s(2)U34; In the N-terminal section; belongs to the methyltransferase superfamily. tRNA (mnm(5)s(2)U34)-methyltransferase family. (686 aa) |
| | yhiQ | Putative SAM-dependent methyltransferase; Specifically methylates the guanosine in position 1516 of 16S rRNA. (252 aa) |
| | yfcB | Putative methylase; Specifically methylates the 50S ribosomal protein L3 on 'Gln- 150'; Belongs to the protein N5-glutamine methyltransferase family. PrmB subfamily. (310 aa) |
| | gltX | Glutamate tRNA synthetase, catalytic subunit; Catalyzes the attachment of glutamate to tRNA(Glu) in a two- step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu). (471 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) |
| | xseA | Exonuclease VII, large subunit; Bidirectionally degrades single-stranded DNA into large acid- insoluble oligonucleotides, which are then degraded further into small acid-soluble oligonucleotides; Belongs to the XseA family. (449 aa) |
| | hisS | histidyl-tRNA synthetase. (SW:SYH_SALTY). (424 aa) |
| | yfgB | Putative Fe-S-cluster redox enzyme; Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity; Belongs to the radical SAM superfamily. RlmN family. (388 aa) |
| | trmJ | Putative rRNA methylase; Catalyzes the formation of 2'O-methylated cytidine (Cm32) or 2'O-methylated uridine (Um32) at position 32 in tRNA. (243 aa) |
| | rnc | RNase III, ds RNA; Digests double-stranded RNA. Involved in the processing of ribosomal RNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Removes small helical intervening sequences (IVSs) from all 7 of the 23S rRNA transcripts. Probably also processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Probably processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism. (226 aa) |
| | yfiC | Putative transferase; Specifically methylates the adenine in position 37 of tRNA(1)(Val) (anticodon cmo5UAC). (245 aa) |
| | srmB | ATP-dependent RNA helicase; DEAD-box RNA helicase involved in the assembly of the 50S ribosomal subunit at low temperature. Exhibits RNA-stimulated ATP hydrolysis and RNA unwinding activity; Belongs to the DEAD box helicase family. SrmB subfamily. (444 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) |
| | yfiF | Putative tRNA/rRNA methyltransferase; Similar to E. coli orf, hypothetical protein (AAC75634.1); Blastp hit to AAC75634.1 (345 aa), 87% identity in aa 1 - 345; Belongs to the class IV-like SAM-binding methyltransferase superfamily. RNA methyltransferase TrmH family. (345 aa) |
| | yfiP | Putative cytoplasmic protein; Similar to E. coli orf, hypothetical protein (AAC75636.1); Blastp hit to AAC75636.1 (240 aa), 88% identity in aa 9 - 234. (226 aa) |
| | rluD | Pseudouridine synthase; Responsible for synthesis of pseudouridine from uracil at positions 1911, 1915 and 1917 in 23S ribosomal RNA. (326 aa) |
| | trmD | tRNA (guanine-7-)-methyltransferase; Specifically methylates guanosine-37 in various tRNAs. Belongs to the RNA methyltransferase TrmD family. (255 aa) |
| | STM2702 | Fels-2 prophage protein; Similar to te-specific recombinases; DNA invertase Pin homolog; similar to E. coli inversion of adjacent DNA; at locus of e14 element (AAC74242.1); Blastp hit to AAC74242.1 (184 aa), 88% identity in aa 3 - 180. (185 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) |
| | STM2765 | Putative transposase. (88 aa) |
| | STM2767 | Putative superfamily I DNA and RNA helicase. (660 aa) |
| | STM2768 | Putative transposase; Similar to E. coli orf, hypothetical protein (AAC75149.1); Blastp hit to AAC75149.1 (102 aa), 85% identity in aa 4 - 102. (99 aa) |
| | STM1109 | Putative periplasmic protein; Similar to E. coli orf, hypothetical protein (AAC75328.1); Blastp hit to AAC75328.1 (311 aa), 27% identity in aa 7 - 147, 27% identity in aa 155 - 277. (312 aa) |
| | yccW | Putative SAM-dependent methyltransferase; Specifically methylates the cytosine at position 1962 (m5C1962) of 23S rRNA. (403 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) |
| | ycbY | Putative N6-adenine-specific DNA methylase; Specifically methylates the guanine in position 2445 (m2G2445) and the guanine in position 2069 (m7G2069) of 23S rRNA. Belongs to the methyltransferase superfamily. RlmKL family. (702 aa) |
| | STM1009 | Gifsy-2 prophage exodeoxyribonuclease; Exodeoxyribonuclease VIII homolog (gi|7467238). (961 aa) |
| | asnS | Similar to E. coli asparagine tRNA synthetase (AAC74016.1); Blastp hit to AAC74016.1 (466 aa), 94% identity in aa 1 - 466. (466 aa) |
| | smtA | S-adenosylmethionine-dependent methyltransferase; Catalyzes the methylation of 5-carboxymethoxyuridine (cmo5U) to form 5-methoxycarbonylmethoxyuridine (mcmo5U) at position 34 in tRNAs; Belongs to the class I-like SAM-binding methyltransferase superfamily. CmoM family. (267 aa) |
| | serS | Serine tRNA synthetase; Catalyzes the attachment of serine to tRNA(Ser). Is also able to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L- seryl-tRNA(Sec), which will be further converted into selenocysteinyl- tRNA(Sec). (430 aa) |
| | ycaJ | Similar to E. coli putative polynucleotide enzyme (AAC73978.1); Blastp hit to AAC73978.1 (447 aa), 97% identity in aa 1 - 447. (447 aa) |
| | tnpA_1 | IS200 transposase; Involved in the transposition of the insertion sequence. (152 aa) |
| | STM0901 | Fels-1 putative prophage DNA primase. (322 aa) |
| | yhiR | Putative cytoplasmic protein; Specifically methylates the adenine in position 2030 of 23S rRNA. (280 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) |
| | glyS | Similar to E. coli glycine tRNA synthetase, beta subunit (AAC76583.1); Blastp hit to AAC76583.1 (689 aa), 92% identity in aa 1 - 689. (689 aa) |
| | glyQ | Similar to E. coli glycine tRNA synthetase, alpha subunit (AAC76584.1); Blastp hit to AAC76584.1 (303 aa), 99% identity in aa 1 - 303. (303 aa) |
| | selA | Selenocysteine synthase; Converts seryl-tRNA(Sec) to selenocysteinyl-tRNA(Sec) required for selenoprotein biosynthesis; Belongs to the SelA family. (463 aa) |
| | yibT | Putative cytoplasmic protein. (69 aa) |
| | yibK | Putative tRNA/rRNA methyltransferase; Methylates the ribose at the nucleotide 34 wobble position in the two leucyl isoacceptors tRNA(Leu)(CmAA) and tRNA(Leu)(cmnm5UmAA). Catalyzes the methyl transfer from S-adenosyl-L-methionine to the 2'-OH of the wobble nucleotide. (157 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) |
| | rph | RNase PH; Phosphorolytic exoribonuclease that removes nucleotide residues following the -CCA terminus of tRNA and adds nucleotides to the ends of RNA molecules by using nucleoside diphosphates as substrates. (238 aa) |
