NDLI: Genetic Variability of Candida albicans Sap8 Propeptide in Isolates from Different Types of Infection

Content Provider	PubMed Central
Author	Carvalho Pereira, Joana Vaz, Catarina Carneiro, Catarina Pais, Célia Sampaio, Paula
Copyright Year	2015
Abstract	The secreted aspartic proteases (Saps) are among the most studied virulence determinants in Candida albicans. These proteins are translated as pre-pro-enzymes consisting of a signal sequence followed by a propeptide and the mature enzyme. The propeptides of secreted proteinases are important for the correct processing, folding/secretion of the mature enzyme. In this study, the DNA sequences of C. albicans Saps were screened and a microsatellite was identified in SAP8 propeptide region. The genetic variability of the repetitive region of Sap8 propeptide was determined in 108 C. albicans independent strains isolated from different types of infection: oral infection (OI), oral commensal (OC), vulvovaginal candidiasis (VVC), and bloodstream infections (BSI). Nine different propeptides for Sap8 processing were identified whose frequencies varied with the type of infection. OC strains presented the highest gene diversity while OI isolated the lowest. The contribution of the Saps to mucosal and systemic infections has been demonstrated and recently Sap8 has been implicated in the cleavage of a signalling glycoprotein that leads to Cek1-MAPK pathway activation. This work is the first to identify a variable microsatellite in the propeptide of a secreted aspartic protease and brings new insights into the variability of Sap8.
Related Links	http://dx.doi.org/10.1155/2015/148343
Starting Page	148343
File Format	PDF
ISSN	23146141
e-ISSN	23146141
Journal	BioMed Research International
Volume Number	2015
Language	English
Publisher	Hindawi Publishing Corporation
Publisher Date	2015-01-01
Access Restriction	Open
Rights Holder	Hindawi Publishing Corporation
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Immunology and Microbiology Medicine Biochemistry, Genetics and Molecular Biology

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