Previous Article | Next Article ![]()
Journal of Clinical Microbiology, 01 1997, 273-277, Vol 35, No. 1
I Otal, S Samper, MP Asensio, MA Vitoria, MC Rubio, R Gomez-Lus and C Martin
Two PCR typing methods, based on polymorphism of the insertion sequence
IS6110, were compared with Mycobacterium tuberculosis strains by using a
single primer complementary to the inverted repeats of IS6110. Total M.
tuberculosis DNA either was amplified directly (IS6110-PCR) or was
amplified following digestion and ligation (IS6110-inverse-PCR). Both PCR
techniques showed a similar degree of discrimination. Because of its
simplicity, IS6110-PCR was chosen to confirm that a single M. tuberculosis
strain was responsible for an outbreak of tuberculosis in a secondary
school. IS6110-PCR was used to study the degree of differentiation in 85
clinical M. tuberculosis isolates from BACTEC 12B broth cultures. Results
were consistent with those of the standardized IS6110 restriction fragment
length polymorphism (RFLP) analysis method, showing identical PCR types for
identical RFLPs, although the degree of discrimination was greater by RFLP
analysis. The study concludes that due to its simplicity, IS6110-PCR is a
good screening method when quick differentiation between M. tuberculosis
strains is needed because BACTEC cultures may be used directly.
Copyright © 1997 by the American Society for Microbiology. All rights reserved.
Use of a PCR method based on IS6110 polymorphism for typing Mycobacterium tuberculosis strains from BACTEC cultures
Departamento de Microbiologia, Medicina Preventiva, y Salud Publica, Universidad de Zaragoza, Spain. otali@posta.unizar.es
This article has been cited by other articles:
Copyright © 2009 by the American Society for Microbiology. For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»