Publication: Depression of Plasmodium falciparum dihydroorotate dehydrogenase activity in in vitro culture by tetracycline
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Issued Date
1988-01-15
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ISSN
01666851
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2-s2.0-0023930175
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Mahidol University
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SCOPUS
Bibliographic Citation
Molecular and Biochemical Parasitology. Vol.27, No.2-3 (1988), 119-124
Suggested Citation
Phisit Prapunwattana, William J. O'Sullivan, Yongyuth Yuthavong Depression of Plasmodium falciparum dihydroorotate dehydrogenase activity in in vitro culture by tetracycline. Molecular and Biochemical Parasitology. Vol.27, No.2-3 (1988), 119-124. doi:10.1016/0166-6851(88)90031-X Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/15494
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Title
Depression of Plasmodium falciparum dihydroorotate dehydrogenase activity in in vitro culture by tetracycline
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Abstract
The activity of Plasmodium falciparum dihydroorotate dehydrogenase, a particulate, electron transport-linked enzyme involved in de novo pyrimidine synthesis, was depressed when the parasite was cultured in the presence of a therapeutic concentration of tetracycline over a 96 h period. There was no direct inhibitory effect of the antibiotic on the enzyme activity. The activity of glutamate dehydrogenase, which is cytoplasmic in the parasite, was unaffected by tetracycline over the same period. Dihydroorotate dehydrogenase activity was substantially recovered when electron acceptors were added. It is suggested that the effect of tetracycline is manifested at the level of the dehydrogenase and/or the electron transport chain linked to this enzyme. © 1988.