Low frequency of moaA3 gene among the clinical isolates of Mycobacterium tuberculosis from Tamil Nadu and Pondicherry – south eastern coastal states of India
2009
Background
Comparative genomic analysis of M. tuberculosis H37Rv and M. bovis BCG have shown that 16 RDs (Regions of Differences) are deleted in BCG and have shown six deletion regions in M. tuberculosis H37Rv. RD1, is present in M. tuberculosis but is absent in all M. bovis BCG sub-strains. A study from Kerala, a south-western coastal state of India aimed to find out differences in RD1 region showed for the first time the presence of moaA3 gene in majority of their clinical isolates, that was absent in type strain H37Rv. We attempted to find out such polymorphism between type strains and the clinical isolates within RD1, targeting moaA3 gene among the clinical isolates of Tamil Nadu & Pondicherry, south-eastern coastal states of India
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