Conserved hypothetical protein.

Acetate kinase; Catalyzes the formation of acetyl phosphate from acetate and ATP. Can also catalyze the reverse reaction; Belongs to the acetokinase family.

Superoxide dismutase, putative; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems. May play a role in maintaining cell viability during the late- exponential and stationary phases of growth since it becomes a major source of activity under oxidative stress. Has a role in resisting external superoxide stress. Involved in acid tolerance and the acid- adaptive response. Mediates the derepression of perR regulon in the response to HOCl stress at low level of SOD activity (By similarity).

Superoxide dismutase, Mn, putative; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems. May play a role in maintaining cell viability throughout all stages of growth, but may be the major SOD activity in the exponential growth- phase. Has a role in resisting external superoxide stress. Involved in acid tolerance and the acid-adaptive response. Mediates the derepression of perR regulon in the response to HOCl stress when the level of SOD activity is low.

Alkyl hydroperoxide reductase; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. Is important for survival under desiccation conditions. Not required for virulence although is necessary for nasal colonization.

Conserved hypothetical protein.

Conserved hypothetical protein.

Thiamine biosynthesis protein ThiI; Catalyzes the ATP-dependent transfer of a sulfur to tRNA to produce 4-thiouridine in position 8 of tRNAs, which functions as a near-UV photosensor. Also catalyzes the transfer of sulfur to the sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a step in the synthesis of thiazole, in the thiamine biosynthesis pathway. The sulfur is donated as persulfide by IscS.

Thioredoxin; Component of the thioredoxin-thioredoxin reductase system. Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions (By similarity).