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The Candida albicans AAA ATPase homologue of Saccharomyces cerevisiae Rix7p (YLL034c) is essential for proper morphology, biofilm formation and activity of secreted aspartyl proteinases

A. S. A. Melo, Padovan, A. C. B., Serafim, R. C., Puzer, L., Carmona, A. K., L. Neto, J., Brunstein, A., and Briones, M. R. S., The Candida albicans AAA ATPase homologue of Saccharomyces cerevisiae Rix7p (YLL034c) is essential for proper morphology, biofilm formation and activity of secreted aspartyl proteinases, vol. 5, pp. 664-687, 2006.

Proper morphology is essential for the ability of Candida albicans to switch between yeast and hyphae and thereby sustain its virulence. Here we identified, by differential screening, a novel C. albicans AAA ATPase encoding gene, CaYLL34 (RIX7), with enhanced expression in hyphae. Phylogenetic analysis suggests that CaYLL34 belongs to a “VCP-like” subgroup of AAA ATPases essential for yeast viability and contains a bipartite nuclear localization signal.

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