The hsp65 gene patterns of less common Mycobacterium and Nocardia spp. by polymerase chain reaction-restriction fragment length polymorphism analysis with capillary electrophoresis

  • Po Ling Chang
  • , Wen Shyang Hsieh
  • , Chia Lien Chiang
  • , Marion J. Tuohy
  • , Gerri S. Hall
  • , Gary W. Procop
  • , Huan Tsung Chang*
  • , Hsin Tsung Ho
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

20 Scopus citations

Abstract

To rapidly identify Mycobacterium and Nocardia spp. without costly probes, we had implemented capillary electrophoresis (CE) in polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) analysis to analyze their 65-kDa heat shock protein (hsp65) gene. The PCR-RFLP analysis with CE (PRACE) involved only one restriction enzyme, HaeIII, and a single electrophoretic separation less than 10 min. Full-range (10-200 bp) RFLP patterns of 12 less common Mycobacterium and 7 Nocardia spp. were investigated. A good agreement was observed between the sizes of restriction fragments resolved by CE and the real sizes deduced from sequence analysis. Including hsp65 gene patterns of 12 Mycobacterium spp. published earlier, differentiation was distinct among 24 Mycobacterium and 7 Nocardia spp. Some closely related species exhibiting similar biochemical characteristics could be well discriminated by an extra HaeIII digestion site. Thus, PRACE offers a nonprobe alternative for rapid identification of various cultured Mycobacterium and Nocardia to the species level.

Original languageEnglish
Pages (from-to)315-323
Number of pages9
JournalDiagnostic Microbiology and Infectious Disease
Volume58
Issue number3
DOIs
StatePublished - 07 2007
Externally publishedYes

Keywords

  • Capillary electrophoresis
  • Mycobacteria other than tuberculosis
  • Nocardia
  • PCR-RFLP analysis
  • Restriction fragment length polymorphism

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