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Shew_0126 | Conserved hypothetical protein; 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) | ||||
lexA | SOS-response transcriptional repressor, LexA; Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. 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. (205 aa) | ||||
rep | ATP-dependent DNA helicase Rep; 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. (670 aa) | ||||
rapA | SNF2-related 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) | ||||
uvrA | Excinuclease ABC subunit A; 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. (941 aa) | ||||
mutL | DNA mismatch repair protein MutL; 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. (631 aa) | ||||
Shew_1182 | PFAM: metallophosphoesterase; KEGG: she:Shewmr4_1086 metallophosphoesterase. (372 aa) | ||||
Shew_1196 | DNA repair protein RecN; May be involved in recombinational repair of damaged DNA. (553 aa) | ||||
mutS | DNA mismatch repair protein MutS; 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) | ||||
recA | recA 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; Belongs to the RecA family. (353 aa) | ||||
recX | Regulatory protein RecX; Modulates RecA activity; Belongs to the RecX family. (150 aa) | ||||
Shew_1264 | PFAM: UvrD/REP helicase; KEGG: sty:HCM1.103 putative DNA helicase. (678 aa) | ||||
Shew_1532 | PFAM: helicase domain protein; type III restriction enzyme, res subunit; DEAD/DEAH box helicase domain protein; SMART: DEAD-like helicases-like; KEGG: shm:Shewmr7_2435 type III restriction enzyme, res subunit. (579 aa) | ||||
Shew_1587 | PFAM: ATP dependent DNA ligase; KEGG: sfr:Sfri_1484 ATP dependent DNA ligase. (270 aa) | ||||
Shew_1799 | PFAM: YebG family protein; KEGG: sdn:Sden_1719 YebG. (98 aa) | ||||
uvrC | Excinuclease ABC subunit C; 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. (609 aa) | ||||
Shew_1892 | PFAM: SNF2-related protein; helicase domain protein; SMART: DEAD-like helicases-like; KEGG: pae:PA0799 probable helicase. (1161 aa) | ||||
uvrB | Excinuclease ABC subunit B; 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 subunits dissociate [...] (672 aa) | ||||
ruvB | Holliday junction DNA helicase RuvB; 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. (337 aa) | ||||
ruvA | Holliday junction DNA helicase RuvA; 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. (205 aa) | ||||
ruvC | Crossover junction endodeoxyribonuclease RuvC; 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) | ||||
Shew_2078 | PFAM: protein of unknown function DUF28; KEGG: sdn:Sden_1886 protein of unknown function DUF28. (248 aa) | ||||
dnaE2 | DNA polymerase III, alpha subunit; DNA polymerase involved in damage-induced mutagenesis and translesion synthesis (TLS). It is not the major replicative DNA polymerase. (1078 aa) | ||||
Shew_2101 | KEGG: bxe:Bxe_A3165 hypothetical protein. (684 aa) | ||||
Shew_2102 | KEGG: tbd:Tbd_0830 hypothetical protein. (276 aa) | ||||
Shew_2196 | SMART: helicase c2; DEAD-like helicases-like; KEGG: shm:Shewmr7_2172 helicase C2. (641 aa) | ||||
topA | DNA topoisomerase I; 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 supe [...] (898 aa) | ||||
ligA | DNA ligase, NAD-dependent; 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. (669 aa) | ||||
Shew_2456 | PFAM: SMC domain protein; KEGG: son:SO2843 exonuclease SbcC, putative. (1018 aa) | ||||
sbcD | Exodeoxyribonuclease I subunit D; 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. (380 aa) | ||||
Shew_2482 | PFAM: DNA polymerase B, exonuclease; DNA polymerase B region; SMART: DNA-directed DNA polymerase B; KEGG: she:Shewmr4_2469 DNA polymerase B region. (795 aa) | ||||
dinG | Helicase c2; DNA-dependent ATPase and 5'-3' DNA helicase. (690 aa) | ||||
Shew_2487 | PFAM: histone deacetylase superfamily; KEGG: she:Shewmr4_2474 histone deacetylase superfamily. (300 aa) | ||||
xni | 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. (256 aa) | ||||
Shew_2807 | TIGRFAM: DNA repair protein RadA; KEGG: sfr:Sfri_1010 DNA repair protein RadA. (457 aa) | ||||
dinB | DNA-directed DNA polymerase; 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. (359 aa) | ||||
Shew_3385 | TIGRFAM: DNA helicase II; PFAM: UvrD/REP helicase; KEGG: she:Shewmr4_0473 DNA helicase II. (726 aa) | ||||
Shew_3474 | KEGG: son:SO4241 ATP-dependent DNA helicase RecQ; TIGRFAM: ATP-dependent DNA helicase, RecQ family; ATP-dependent DNA helicase RecQ; PFAM: helicase domain protein; HRDC domain protein; DEAD/DEAH box helicase domain protein; SMART: DEAD-like helicases-like. (610 aa) | ||||
polA | DNA polymerase I; In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity; Belongs to the DNA polymerase type-A family. (930 aa) |