ArsR repressor protein; Involved in the regulation of lipid metabolism and hypoxic response. Positively regulates transcription of various genes, such as phoP, groEL2 and dosR. Negatively regulates its own transcription. Acts by binding to a specific palindromic sequence motif in promoter regions.

Conserved hypothetical protein; Probable toxic component of a type II toxin-antitoxin (TA) system. Degrades NAD(+) by phosphorolysis. Neutralized by its cognate antitoxin Rv3188.

Conserved hypothetical protein; Probable antitoxin component of a type II toxin-antitoxin (TA) system. Neutralizes the activity of cognate toxin Rv3189 by blocking access to the toxin active site.

Conserved protein; Rv0918, (MTCY21C12.12), len: 158 aa. Conserved protein, similar in part to Q50116 hypothetical protein from Mycobacterium leprae (44 aa), FASTA scores: opt: 132,E(): 0.0055, (65.6% identity in 32 aa overlap). Also some similarity in C-terminus with other hypothetical proteins e.g. NP_289961.1|NC_002655 hypothetical protein from Escherichia coli strain O157:H7 (94 aa); etc.

Conserved protein; Rv1810, (MTCY16F9.04c), len: 118 aa. Conserved protein, similar to several hypothetical Mycobacterium tuberculosis proteins that may be exported (possible N-terminal signal sequence) e.g. O53953|Rv1804c|MTV049.26c|AL022021 (108 aa), FASTA scores: opt: 361, E(): 9.6e-17, (53.5% identity in 101 aa overlap); Rv0622, and Rv1690, etc.

Rv2033c, (MTV018.20), len: 280 aa. Conserved hypothetical protein, similar to many.

Possible toxin VapC17; Toxic component of a type II toxin-antitoxin (TA) system. An RNase. The cognate antitoxin is VapB17 (By similarity). Belongs to the PINc/VapC protein family.

Possible toxin VapC31. Contains PIN domain; Toxic component of a type II toxin-antitoxin (TA) system. An RNase (By similarity). Upon expression in M.smegmatis inhibits colony formation. Its toxic effect is neutralized by coexpression with cognate antitoxin VapB31 (By similarity).

Hypothetical protein; Toxic component of a type II toxin-antitoxin (TA) system. Neutralized by cognate antitoxin MbcA. Degrades NAD(+) by phosphorolysis. Expression in the absence of its cognate antitoxin MbcA causes dramatic reduction of intracellular NAD(+) levels and is deleterious to cell growth, causing cell death. In a SCID mouse infection model, mice infected with bacteria overexpressing this protein survive longer. Overexpression of this protein in a mouse infection model at 21 days leads to bacterial death, and shows a synergistic 100-fold increase in mouse survival when combi [...]