Putative DNA-directed polymerase III; Excinuclease cho (EC 3.1.25.-) (Endonuclease cho) (UvrC homolog protein). 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); Specificity unclear.

MutM protein; 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.

Conserved hypothetical protein. 61% identity to hypothetical protein Bucepa02000624 [Burkholderia cepacia R1808] (gi|46324486|ref|ZP_00224847.1|(NBCI ENTREZ)). NO Signal peptide or TMH reported present. no domains predicted.

Probable DNA repair protein RadA; 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.

Conserved hypothetical protein; Bifunctional enzyme that catalyzes the epimerization of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. This allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration. Catalyzes the epimerization of the S- and R-forms of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration. This is a prerequisite for the S-specific NAD(P)H-hydrate dehydratase to allow the repair o [...]