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Updated: Jun 1, 2026

Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance
Published on: May 2, 2018
'Snakes and Ladders' of drug resistance evolution
Thanat Chookajorn1, Krittikorn Kümpornsin
1Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand. sctck@mahidol.ac.th
Abstract:
Malaria is a major public health problem affecting 500 million people each year. Only few anti-malarial drugs are now available for fighting this deadly disease, and their effectiveness is alarmingly dwindling because of the drug resistant strains. Here we discuss recent findings on the evolutionary process behind the gain of a resistant gene. It was shown that, for a protein to become resistant to an inhibitor, an intricate stepwise order of mutations must be followed. The projected evolutionary steps were compared with the field data, which reflects the natural history of drug resistant development.
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