Title : The folate pathway is a target for resistance to the drug para-aminosalicylic acid (PAS) in mycobacteria.

Pub. Date : 2004 Jul

PMID : 15225321






4 Functional Relationships(s)
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1 We have isolated PAS-resistant transposon mutants of Mycobacterium bovis BCG with insertions in the thymidylate synthase (thyA) gene, a critical determinant of intracellular folate levels. Folic Acid thymidylate synthetase Homo sapiens
2 We have isolated PAS-resistant transposon mutants of Mycobacterium bovis BCG with insertions in the thymidylate synthase (thyA) gene, a critical determinant of intracellular folate levels. Folic Acid thymidylate synthetase Homo sapiens
3 BCG thyA mutants have reduced thymidylate synthase activity and are resistant to known inhibitors of the folate pathway. Folic Acid thymidylate synthetase Homo sapiens
4 Thus, PAS acts in the folate pathway, and thyA mutations probably represent a mechanism of developing resistance not only to PAS but also to other drugs that target folate metabolism. Folic Acid thymidylate synthetase Homo sapiens