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The Functions of Mediator in Candida albicans Support a Role in Shaping Species-Specific Gene Expression (CROSBI ID 183912)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Uwamahoro, Nathalie ; Qu, Yue ; Jeličić, Branka ; Lo, Tricia L. ; Beaurepaire, Cecile ; Bantun, Farkad ; Quenault, Tara ; Boag, Peter R. ; Ramm, Georg ; Callaghan, Judy et al. The Functions of Mediator in Candida albicans Support a Role in Shaping Species-Specific Gene Expression // PLOS genetics, 8 (2012), 4; e1002613, 18. doi: 10.1371/journal.pgen.1002613

Podaci o odgovornosti

Uwamahoro, Nathalie ; Qu, Yue ; Jeličić, Branka ; Lo, Tricia L. ; Beaurepaire, Cecile ; Bantun, Farkad ; Quenault, Tara ; Boag, Peter R. ; Ramm, Georg ; Callaghan, Judy ; Beilharz, Traude H. ; Nantel, André ; Peleg, Anton Y. ; Traven, Ana

engleski

The Functions of Mediator in Candida albicans Support a Role in Shaping Species-Specific Gene Expression

The Mediator complex is an essential co-regulator of RNA polymerase II that is conserved throughout eukaryotes. Here we present the first study of Mediator in the pathogenic fungus Candida albicans. We focused on the Middle domain subunit Med31, the Head domain subunit Med20, and Srb9/Med13 from the Kinase domain. The C. albicans Mediator shares some roles with model yeasts Saccharomyces cerevisiae and Schizosaccharomyces pombe, such as functions in the response to certain stresses and the role of Med31 in the expression of genes regulated by the activator Ace2. The C. albicans Mediator also has additional roles in the transcription of genes associated with virulence, for example genes related to morphogenesis and gene families enriched in pathogens, such as the ALS adhesins. Consistently, Med31, Med20, and Srb9/Med13 contribute to key virulence attributes of C. albicans, filamentation, and biofilm formation ; and ALS1 is a biologically relevant target of Med31 for development of biofilms. Furthermore, Med31 affects virulence of C. albicans in the worm infection model. We present evidence that the roles of Med31 and Srb9/Med13 in the expression of the genes encoding cell wall adhesins are different between S. cerevisiae and C. albicans: they are repressors of the FLO genes in S. cerevisiae and are activators of the ALS genes in C. albicans. This suggests that Mediator subunits regulate adhesion in a distinct manner between these two distantly related fungal species.

Candida albicans ; mediator ; gene expression

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Podaci o izdanju

8 (4)

2012.

e1002613

18

objavljeno

1553-7390

1553-7404

10.1371/journal.pgen.1002613

Povezanost rada

Biologija

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