Heat shock protein HspX (alpha-crystallin homolog) (14 kDa antigen) (HSP16.3); Acts as a chaperone, as it has a significant ability to suppress the thermal denaturation of alcohol dehydrogenase. Cells overexpressing this gene grow more slowly than wild-type cells, and are less susceptible to autolysis following saturation of the culture in vitro, suggesting this protein may slow down the growth rate of M.tuberculosis in culture and by extension during macrophage infection. Belongs to the small heat shock protein (HSP20) family.

Conserved protein; Rv2030c, (MTV018.17c), len: 681 aa. Conserved protein. Predicted possible vaccine candidate (See Zvi et al., 2008).

Rv1733c, (MTCY04C12.18c), len: 210 aa. Probable conserved transmembrane protein. Similar to AL109962|SCJ1_26 hypothetical protein from Streptomyces coelicolor (193 aa), FASTA scores: opt: 287, E(): 3.8e-11,(35.2% identity in 182 aa overlap). Predicted possible vaccine candidate (See Zvi et al., 2008).

Rv3134c, (MTCY03A2.240, len: 268 aa. Universal stress protein family protein. Ala-, Val- rich (see citations below), related to other hypothetical Mycobacterium tuberculosis proteins e.g. O53474|Rv2028c|MTV018.15c (279 aa), FASTA scores: opt: 562,E(): 3.2e-28, (40.65% identity in 273 aa overlap); O06188|Rv2624c|MTCY01A10.08 (272 aa), FASTA scores: opt: 458, E(): 1.1e-21, (36.55% identity in 271 aa overlap); O53472|R2026c|MTV018.13c (294 aa), FASTA scores: opt: 232,E(): 1.9e-07, (30.45% identity in 276 aa overlap); etc. Shares some similarity with other hypothetical proteins from Strept [...]

Rv2028c, (MTV018.15c), len: 279 aa. Universal stress protein family protein, highly similar to many, contains IPR006016 UspA domain.

Hypoxic response protein 1 Hrp1; Unlike some other CBS-domain containing proteins does not seem to bind AMP.

Universal stress protein family protein TB31.7; May play a role in the establishment of a persistent infection (latency) in the host, as strains without this gene are hypervirulent. Overexpression of the protein retards growth in culture; Glu-15 and Ala-117 mutant proteins which bind less ATP do not show this retardation, suggesting growth may be regulated through an ATP- dependent function.

Triacylglycerol synthase (diacylglycerol acyltransferase) Tgs1; Catalyzes the terminal and only committed step in triacylglycerol synthesis by using diacylglycerol and fatty acyl CoA as substrates. Required for storage lipid synthesis (Probable).

6-phosphofructokinase PfkB (phosphohexokinase) (phosphofructokinase); Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis.