RNASEH1 and tuberculosis: In contrast, drug sensitive TB isolates showed an absence of non-synonymous SNPs in the genes Mpg, SSBa, and Ku, but a high frequency was observed in ImuB (p = 0.028), RNaseH2 (p = 0.028), RNaseH1 (p = 0.046), and MutT2 (p < 0.001) (only present in L4.10 and mixed infection).