Genomic heterogeneity in clinical strains of mycobacterium tuberculosis, M. terrae complex, M. gordonae, M. avium-intracellulae complex and M. fortuitum by pulsed-field gel electrophoresis

Jeong Ran Kim, Bong Seok Kang, Jeong Heon Ko, Jin Suk Park, Sang Jae Kim, Gil Hwan Bai, Tae Ho Chung, Kyung Soo Nam, Yong Kyung Choi, In Sung Choe, Tae Wha Chung, Young Choon Lee, Cheorl Ho Kim

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Clinical strains of Mycobacterium tuberculosis, M. terrae complex, M. gordonae, M. avium-intracellulae complex, and M. fortuitum from Korean patients were isolated and analyzed by comparing large restriction fragment (LRF) patterns produced by digestion of genomic DNA with infrequent-cutting endonucleases like AsnI and XbaI, and pulsed-field gel electrophoresis (PFGE). Three M. tuberculosis, two M. terrae complex, two M. gordonae, two M. avium-intracellulae complex, and two M. fortuitum strains were compared by using AsnI and XbaI, and this allowed easy visual separation of all epidemiologically unrelated strains. PFGE exhibits different DNA restriction patterns which are easy to compare. Genome size of the strains roughly ranged from 3020 to 3335 kb. The LRF patterns are useful for epidemiologic studies of tuberculosis with regard to drug resistance.

Original languageEnglish
Pages (from-to)569-573
Number of pages5
JournalJournal of Biochemistry and Molecular Biology
Volume29
Issue number6
StatePublished - 30 Nov 1996
Externally publishedYes

Keywords

  • Genome
  • Mycobacteria
  • Pulsed-fielded gel electrophoresis

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