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J Eukaryot Microbiol. 1995 Nov-Dec;42(6):675-9.

Analysis of genetic diversity at the arom locus in isolates of Pneumocystis carinii.

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Department of Paediatrics, John Radcliffe Hospital, United Kingdom.


The DNA sequences of a portion of the 5-enolpyruvyl shikimate phosphate synthase domain of the arom gene, encoding the pentafunctional AROM protein, were determined from isolates of Pneumocystis carinii from five mammalian host species (rat, human, ferret, rabbit and mouse). High levels of genetic divergence were found among P. carinii derived from different host species, 7-22% at the DNA sequence level, and 7-26% at the derived amino acid sequence level. Two separate and distinct sequences were isolated from infected ferret lungs. Low levels of divergence were seen in human-derived organisms.

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