The identification and evaluation of ATP binding cassette systems in the intracellular bacterium Francisella tularensis


Atkins, HS; Dassa, E; Walker, NJ; Griffin, KF; Harland, DN; Taylor, RR; Duffield, ML; Titball, RW; (2006) The identification and evaluation of ATP binding cassette systems in the intracellular bacterium Francisella tularensis. Research in microbiology, 157 (6). pp. 593-604. ISSN 0923-2508 DOI: 10.1016/j.resmic.2005.12.004

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Abstract

Francisella tularensis is a facultative intracellular bacterium responsible for the disease tularemia. Analysis of the fully sequenced genome of the virulent F. tularensis strain SCHU S4 has led to the identification of twenty ATP binding cassette (ABC) systems, of which five appear to be non-functional. The fifteen complete systems comprise three importers, five exporters, four systems involved in non-transport processes, and three systems of unknown or ill-defined function. The number and classification of the ABC systems in F. tularensis is similar to that observed in other intracellular bacteria, indicating that some of these systems may be important for the intracellular lifestyle of these organisms. Among the ABC systems identified in the genome are systems that may be involved in the virulence of F. tularensis SCHU S4. Six ABC system proteins were evaluated as candidate vaccine antigens against tularemia, although none provided significant protection against F. tularensis. However, a greater understanding of these systems may lead to the development of countermeasures against F. tularensis. Crown Copyright (c) 2006 Published by Elsevier SAS. All rights reserved.

Item Type: Article
Keywords: ABC, genome, bacterial, Francisella tularensis, Complete genome sequence, abc transport-systems, escherichia-coli, mycobacterium-tuberculosis, oxidative stress, functional, classification, chlamydia-trachomatis, campylobacter-jejuni, ribosomal, atpase, cytochrome bd
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Pathogen Molecular Biology
PubMed ID: 16503121
Web of Science ID: 239648800012
URI: http://researchonline.lshtm.ac.uk/id/eprint/11431

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