Article
Genetic diversity of drug targets including dihydropteroate synthase, dihydrofolate reductase and cytochrome b, in Pneumocystis carinii f. sp. hominis isolates in Japan.
Research communications in molecular pathology and pharmacology - 1 Jan 2002
Takahashi Takashi, Kanda Tsugiyasu, Iwamoto Aikichi
Abstract excerpt
This study examined gene polymorphisms in dihydropteroate synthase (DHPS), dihydrofolate reductase (DHFR) and cytochrome b of Pneumocystis carinii isolated from 34 patients with P. carinii pneumonia (PCP) in Japan. Four amino acid substitutions (Thr55Ala, Pro57Ser, His60Gln and Glu169Gly) in DHPS, 2 mutations (Ala67Val and Cys166Tyr) in DHFR and 1 mutation (Leu280Phe) in cytochrome b were found in 9 (26.5%), 2...
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