May be involved in the GO system responsible for removing an oxidatively damaged form of guanine (7,8-dihydro-8-oxoguanine, 8-oxo-dGTP) from DNA and the nucleotide pool (By similarity). In vitro has dATPase rather than 8-oxo-dGTPase activity. A possible member of the dormancy regulon. Induced in response to reduced oxygen tension (hypoxia). It is hoped that this regulon will give insight into the latent, or dormant phase of infection. None observed. There are 4 mutT paralogs in M.tuberculosis; the exact function of each is unknown. Belongs to the Nudix hydrolase family.