Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive 

Houghton, Joanna; Townsend, Carolin; Williams, Alan R; Rodgers, Angela; Rand, Lucinda; Walker, K Barry; Böttger, Erik C; Springer, Burkhard; Davis, Elaine O (2012). Important role for Mycobacterium tuberculosis UvrD1 in pathogenesis and persistence apart from its function in nucleotide excision repair. Journal of Bacteriology, 194(11):2916-2923.

Full text not available from this repository.

Abstract

Mycobacterium tuberculosis survives and replicates in macrophages, where it is exposed to reactive oxygen and nitrogen species that damage DNA. In this study, we investigated the roles of UvrA and UvrD1, thought to be parts of the nucleotide excision repair pathway of M. tuberculosis. Strains in which uvrD1 was inactivated either alone or in conjunction with uvrA were constructed. Inactivation of uvrD1 resulted in a small colony phenotype, although growth in liquid culture was not significantly affected. The sensitivity of the mutant strains to UV irradiation and to mitomycin C highlighted the importance of the targeted genes for nucleotide excision repair. The mutant strains all exhibited heightened susceptibility to representatives of reactive oxygen intermediates (ROI) and reactive nitrogen intermediates (RNI). The uvrD1 and the uvrA uvrD1 mutants showed decreased intracellular multiplication following infection of macrophages. Most importantly, the uvrA uvrD1 mutant was markedly attenuated following infection of mice by either the aerosol or the intravenous route.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Microbiology
DDC:570 Life sciences; biology
610 Medicine & health
Language:English
Date:2012
Deposited On:25 Oct 2012 14:39
Last Modified:27 Nov 2013 22:32
Publisher:American Society for Microbiology
ISSN:0021-9193
Publisher DOI:10.1128/JB.06654-11
PubMed ID:22467787
Citations:Web of Science®. Times Cited: 4
Google Scholar™
Scopus®. Citation Count: 4

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page