1. Candida albicans DBF4 gene inducibly duplicated by the mini-Ura-blaster is involved in hypha-suppression.
- Author
-
Chien T, Tseng TL, Wang JY, Shen YT, Lin TH, and Shieh JC
- Subjects
- Candida albicans pathogenicity, DNA Replication genetics, Gene Duplication, Humans, Hyphae growth & development, Virulence genetics, Candida albicans genetics, Cell Cycle Proteins genetics, Fungal Proteins genetics, Hyphae genetics, Protein Serine-Threonine Kinases genetics
- Abstract
The opportunistic human fungal pathogen Candida albicans is a natural diploid that does not have a complete sexual cycle. The ability to switch between diverse cellular forms is important to its virulence. Here, we describe the characterization of the C. albicans DBF4 gene, a Saccharomyces cerevisiae homolog that encodes a regulatory subunit of Cdc7 kinase that is known to initiate DNA replication. We made a C. albicans strain, with one DBF4 allele deleted by the mini-Ura-blaster and the other controlled by a repressible promoter. We also found a third CaDBF4 copy that was later verified to be inducibly duplicated by targeted recombination with the min-Ura-blaster. Surprisingly, the strain deleted with the third CaDBF4 copy exhibited hyphal growth under repressed conditions. We conclude that the CaDBF4 gene is prone to being duplicated by the mini-Ura-blaster and that it suppresses hyphal growth in C. albicans., (Copyright © 2015 Elsevier B.V. All rights reserved.)
- Published
- 2015
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