Lee C H, Lu J J, Bartlett M S, Durkin M M, Liu T H, Wang J, Jiang B, Smith J W
Department of Pathology, Indiana University School of Medicine, Indianapolis 46202.
J Clin Microbiol. 1993 Mar;31(3):754-7. doi: 10.1128/jcm.31.3.754-757.1993.
The nucleotide sequences of a portion of the large-subunit mitochondrial rRNA gene of Pneumocystis carinii derived from 12 patients were examined. Five sequences were found to be identical to the prototype sequence reported by Sinclair et al. (K. Sinclair, A. E. Wakefield, S. Banerji, and J. M. Hopkin, Mol. Biochem. Parasitol. 45:183-184, 1991). Six sequences differed from the prototype sequence at one to three positions. The remaining sequence was markedly different from the prototype sequence and appeared to be a hybrid of the human and rat P. carinii sequences. The results of this study indicate the existence of multiple P. carinii strains infecting humans and suggest that coinfections of animal and human P. carinii strains in the same host are possible.
对来自12名患者的卡氏肺孢子虫线粒体大核糖体RNA基因一部分的核苷酸序列进行了检测。发现有5个序列与Sinclair等人(K. Sinclair、A. E. Wakefield、S. Banerji和J. M. Hopkin,《分子生物化学寄生虫学》45:183 - 184,1991年)报道的原型序列相同。6个序列在1至3个位置上与原型序列不同。其余序列与原型序列明显不同,似乎是人和大鼠卡氏肺孢子虫序列的杂交体。本研究结果表明存在多种感染人类的卡氏肺孢子虫菌株,并提示同一宿主中动物和人类卡氏肺孢子虫菌株的混合感染是可能的。