Table 1. Sulfur metabolism genes from M. tuberculosis induced by various conditions of environmental stress.

Stress Condition	Genes Induced	Reference
5-Chloropyrazinamide	cysN	[20]
Hydrogen peroxide	cysD, cysNC a, cysK2, cysM, cysT	[21], [22]
Hypoxia	cysD, cysK2, cysN, cysM	[23], [24]
Macrophage infection	cysD, cysN	[21], [25]
Menadione	cysA1, cysT, cysW, subI	[20]
Nutrient starvation	cysA1, cysD, cysH, cysN, cysQ, cysT, cysW, sirA, subI	[26], [27]
SDS	cysD, cysN	[28]
Vancomycin	cysD, cysK2, cysNC	[29]

^aThe cysN and cysC genes of Mtb are fused into a single, bifunctional cysNC gene [22]. However, the transcript is often reported as cysN in microarray data.

SDS, sodium dodecyl sulfate.