Qian Lishi, Abe Chiyoji, Lin Tao-Ping, Yu Ming-Chih, Cho Sang-Nae, Wang Sumin, Douglas James T
Department of Microbiology, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA.
J Clin Microbiol. 2002 Mar;40(3):1091-4. doi: 10.1128/JCM.40.3.1091-1094.2002.
The 81-bp region of the rpoB gene in 66 Rif(r) Mycobacterium tuberculosis isolates from China, Japan, Korea, and Taiwan was analyzed. Twelve single-nucleotide substitutions in the rpoB gene were detected. The most prevalent mutations were at Ser-531 (52%), Asp-516 (17%), and His-526 (11%). Mutations were not found in seven (11%) of the isolates. Higher mutation rates in 50 Beijing family isolates were found than in other isolates for mutations at Asp-516 (18 and 12.5%, respectively) and His-526 (12 and 6.3%, respectively). The different rates of mutation may reflect the choice of rifamycin analogs.
对来自中国、日本、韩国和台湾地区的66株耐利福平结核分枝杆菌分离株的rpoB基因81bp区域进行了分析。在rpoB基因中检测到12个单核苷酸替换。最常见的突变位于Ser-531(52%)、Asp-516(17%)和His-526(11%)。在7株(11%)分离株中未发现突变。50株北京家族分离株在Asp-516(分别为18%和12.5%)和His-526(分别为12%和6.3%)位点的突变率高于其他分离株。不同的突变率可能反映了利福霉素类似物的选择。