ArticleCurrent microbiology2014
A novel method of identifying Mycobacterium tuberculosis Beijing strains by detecting SNPs in Rv0444c and Rv2629.
Article in Current microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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- Identification andHeliyon · 2020Article
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Abstract
A particular genotype of tuberculosis, named Beijing strain, is strongly associated with drug resistance and high virulence. Therefore, rapid prospective identification of Mycobacterium tuberculosis Beijing strains is very important for identifying and controlling tuberculosis of Beijing genotype. In the present study, we found that the co-mutation, A191C in Rv2629 and G243C in Rv0444c, is closely related to Beijing genotype. Gene Rv2629 and Rv0444c of 139 clinical isolates of M. tuberculosis were analyzed by PCR amplification and sequencing. Among 99 Beijing strains, 86 % (n = 85) isolates had the mutation G243C in Rv0444c and 92.93 % (n = 92) isolates had the mutation A191C in Rv2629. Among 40 non-Beijing isolates, only six isolates carried the mutation G243C in Rv0444c and eight isolates carried the mutation A191C in Rv2629. The co-mutation existed in 84.85 % (n = 84) of 99 clinical genome samples of W-Beijing strains and in only 12.5 % (n = 5) of the 40 non-Beijing strains, and the positive predictive value of 94.38 %, obtained in our experiment with a designed ratio of Beijing isolates, is similar to that in China at present. This result suggested that the detection method of the co-mutation, A191C in Rv2629 and G243C in Rv0444c, proposed in this study was a rapid, reliable, and sensitive one for identifying tuberculosis with Beijing genotype.
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