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In vitro analysis of rates and spectra of mutations in a polymorphic region of the Rv0746 PE_PGRS gene of Mycobacterium tuberculosis


Machowski, E E; Barichievy, S; Springer, B; Durbach, S I; Mizrahi, V (2007). In vitro analysis of rates and spectra of mutations in a polymorphic region of the Rv0746 PE_PGRS gene of Mycobacterium tuberculosis. Journal of Bacteriology, 189(5):2190-2195.

Abstract

An assay modeled on a known polymorphism in the PE_PGRS9 gene of Mycobacterium tuberculosis was designed to assess the mutability of a sequence containing interspersed PGRS repeats. Application of the assay in Mycobacterium smegmatis revealed sequence plasticity: in addition to recapitulating the mutation on which it was based, other mutations likely mediated by replication slippage between PGRS repeats were detected. However, the mutation rates argued against marked hypermutability of such sequences in mycobacteria.

An assay modeled on a known polymorphism in the PE_PGRS9 gene of Mycobacterium tuberculosis was designed to assess the mutability of a sequence containing interspersed PGRS repeats. Application of the assay in Mycobacterium smegmatis revealed sequence plasticity: in addition to recapitulating the mutation on which it was based, other mutations likely mediated by replication slippage between PGRS repeats were detected. However, the mutation rates argued against marked hypermutability of such sequences in mycobacteria.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Microbiology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:March 2007
Deposited On:20 Mar 2009 13:32
Last Modified:05 Apr 2016 12:29
Publisher:American Society for Microbiology
ISSN:0021-9193
Publisher DOI:10.1128/JB.01647-06
PubMed ID:17172340
Permanent URL: http://doi.org/10.5167/uzh-4248

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