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An Adhesin of the Yeast Pathogen Candida glabrata Mediating Adherence to Human Epithelial Cells

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Science  23 Jul 1999:
Vol. 285, Issue 5427, pp. 578-582
DOI: 10.1126/science.285.5427.578

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Abstract

Candida glabrata is an important fungal pathogen of humans that is responsible for about 15 percent of mucosal and systemic candidiasis. Candida glabrata adhered avidly to human epithelial cells in culture. By means of a genetic approach and a strategy allowing parallel screening of mutants, it was possible to clone a lectin from a Candida species. Deletion of this adhesin reduced adherence of C. glabrata to human epithelial cells by 95 percent. The adhesin, encoded by the EPA1 gene, is likely a glucan–cross-linked cell-wall protein and binds to host-cell carbohydrate, specifically recognizing asialo-lactosyl–containing carbohydrates.

  • * Present address: Johns Hopkins Medical Institute, Department of Molecular Biology and Genetics, 725 N. Wolfe Street, Baltimore, MD 21205, USA.

  • To whom correspondence should be addressed. E-mail: bcormack{at}jhmi.edu

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