Development of type-specific PCR for typing Pneumocystis carinii f. sp. hominis based on nucleotide sequence variations of internal transcribed spacer region of rRNA genes.

Abstract excerpt

The nucleotide sequence variations in the internal transcribed spacer region 1 (ITS1) and region 2 (ITS2) of rRNA genes were found to be useful for typing Pneumocystis carinii isolates that infect humans. Two types of ITS1 (A and B) and three types of ITS2 (a, b, and c) sequences have been found, and P. carinii isolates are classified based on sequence types of ITS1 and ITS2 as Ax or Bx (where x may be a, b, or...

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