The gene expression data of Mycobacterium tuberculosis based on Affymetrix gene chips provide insight into regulatory and hypothetical genes

Table 3 The distribution (percentage %) of functional categories for genes in the major clusters of each zone on the gene expression map.

Clusters in	Vil	Lipid	Info	Cell-W-P	Ins-S-P	Meta-Res	?	Reg	Hypo
Zone-1	5	20	0	15	0	30	0	0	30
Zone-2	0	2	5	32	3	34	0	2	22
Zone-3	3	0	38	16	0	22	0	4	17
Zone-4	6	8	5	20	2	21	1	7	30

Vil: virulence, detoxification, adaptation. Lipid: lipid metabolism. Info: information pathways. Cell-W-P: cell wall and cell processes. Ins-S-P: insertion sequences and phages. Meta-Res: intermediate metabolism and respiration. ?: unknown function. Reg: regulatory function. Hypo: conserved hypothetical proteins.

ISSN: 1471-2180