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Rv0340 family protein Homologs of Rv0340 from Mycobacterium tuberculosis H37Rv are regularly found encoded upstream of the genes for IniB, IniA, and IniC. As with those families, mutation in this family can contribute to resistance to isoniazid, a front-line treatment for Mycobacterium tuberculosis that works by inhibiting cell wall biosynthesis. Rv0340 and glycine-rich repetive protein IniB are homologous across the N-terminal 50 amino acids of each, but otherwise dissimilar.
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