DNA polymerase III (beta chain) DnaN (DNA nucleotidyltransferase); 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 ch [...]

Rv2413c, (MTCY253.07), len: 316 aa. Conserved hypothetical protein, highly similar to O33133|MLCL536.07c|ML0603|Q49756|G466975|B1937_F2_36 hypothetical 39.1 KDA protein from Mycobacterium leprae (389 aa), FASTA scores: opt: 1683, E(): 1.8e-88, (83.9% identity in 316 aa overlap). ML0603 is a putative lipoprotein with an N-terminal signal sequence and appropriately positioned prokaryotic lipoprotein lipid attachment site that is not present in Rv2413c as this seems to be 73 aa shorter. Also some similarity with various proteins from other organisms e.g. Q9RDM2|SCC123.02c putative DNA-bin [...]

DNA gyrase subunit B; A type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to maintain chromosomes in an underwound state, while in the absence of ATP it relaxes supercoiled dsDNA. . Also catalyzes the interconversion of other topological isomers of dsDNA rings, including catenanes. Gyrase from M.tuberculosis has higher decatenation than supercoiling activity compared to E.coli; as M.tuberculosis only has 1 type II topoisomerase, gyrase has to fulfill the decatenation function of topoisomerase IV as well. At comparable c [...]

Rv1122, (MTCY22G8.11), len: 340 aa. Probable gnd2,6-phosphogluconate dehydrogenase, decarboxylating, highly similar to Q53917 6-phosphogluconate dehydrogenase from Streptomyces coelicolor (291 aa), fasta scores: opt: 431,E(): 2.2e-20, (44.5% identity in 335 aa overlap). Also similar to Rv1844c|MTCY359.29|gnd1 probable 6-phosphogluconate dehydrogenase from Mycobacterium tuberculosis (485 aa), FASTA score: (33.0% identity in 351 aa overlap). Note that Rv1844c|MTCY359.29|gnd1 is most similar to gnd's from Gram negative organisms, while gnd2 is most similar to gnd's from Gram positive orga [...]

Rv0007, (MTCY10H4.05), len: 304 aa. Possible conserved membrane protein. A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al.,2004).

Rv2256c, (MTV022.06c), len: 177 aa. Conserved hypothetical protein, similar to Streptomyces glaucescens ORF5 (164 aa) and Streptomyces coelicolor hypothetical protein SC4A7.19c (164 aa; emb|CAB62723.1|AL133423). FASTA scores: sptr|Q54209|Q54209 FABD, FABH, FABC, FABB, and ORF5 (164 aa) opt: 504, E(): 3.9e-27; (44.4% identity in 162 aa overlap).

Probable conserved transmembrane protein; Essential for cell growth and peptidoglycan synthesis. In the N-terminal section; belongs to the MurJ/MviN family.

Conserved protein; Binds to RNA polymerase (RNAP), stimulating and stabilizing the formation of stable RNAP promoter complexes up to 2-fold from principal sigma factor SigA-dependent but not alternative sigma factor SigF-dependent promoters. Increases the affinity of core RNAP for SigA, increasing the transcriptional activity of RNAP. Unlike the case in M.smegmatis or S.coelicolor, has no effect on rifampicin inhibition of transcription. Has no effect on E.coli RNAP. Belongs to the RNA polymerase-binding protein RbpA family.

Conserved hypothetical protein; Cleaves both 3' and 5' ssDNA extremities of branched DNA structures; Belongs to the NucS endonuclease family.