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Attenuation of virulence and changes in morphology in Candida albicans by disruption of the N-acetylglucosamine catabolic pathway

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Title Attenuation of virulence and changes in morphology in Candida albicans by disruption of the N-acetylglucosamine catabolic pathway
 
Creator Singh, Praveen
Ghosh, Sharmistha
Datta, Asis
 
Subject Candida albicans
N-Acetylglucosamine Catabolic Pathway
virulence and morphogenesis
 
Description A Candida albicans mutant with mutations in the N-acetylglucosamine (GlcNAc) catabolic pathway gene
cluster, including the GlcNAc-6-phosphate deacetylase (DAC1), glucosamine-6-phosphate deaminase (NAG1),
and GlcNAc kinase (HXK1) genes, was not able to grow on amino sugars, exhibited highly attenuated virulence
in a murine systemic candidiasis model, and was less adherent to human buccal epithelial cells in vitro. No
germ tubes were formed by the mutant after induction with GlcNAc, but the mutant exhibited hyperfilamen-
tation under stress-induced filamentation conditions. In addition, the GlcNAc catabolic pathway played a vital
role in determining the colony phenotype. Our results imply that this pathway is very important because of its
diverse links with pathways involved in virulence and morphogenesis of the organism.
This work was supported by a grant from the Department of Biotechnology, India
 
Date 2013-10-09T06:39:34Z
2013-10-09T06:39:34Z
2001
 
Type Article
 
Identifier Infection and Immunity, 69(12): 7898-7903
http://hdl.handle.net/123456789/18
 
Language en
 
Publisher American Society for Microbiology