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FEMS Microbiol Lett. 1995 May 15;128(3):271-7.

Glucosylation of cell wall proteins in regenerating spheroplasts of Candida albicans.

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Institute of Molecular Cell Biology, University of Amsterdam, The Netherlands.


The cell wall of Candida albicans contains mannoproteins that are covalently associated with beta-1,6-glucan. When spheroplasts were allowed to regenerate a new cell wall, initially non-glucosylated cell wall proteins accumulated in the medium. While the spheroplasts became osmotically stable, beta-1,6-glucosylated proteins could be identified in their cell wall by SDS-extraction or beta-1,3-glucanase digestion. At later stages of regeneration, beta-1,3-glucosylated proteins were also found. Hence, incorporation of proteins into the cell wall is accompanied by extracellular coupling to beta-1,6-/beta-1,3-glucan. The SDS-extractable glucosylated proteins probably represent degradation products of wall proteins rather than their precursors. Tunicamycin delayed, but did not prevent the formation of beta-1,6-glucosylated proteins, demonstrating that beta-1,6-glucan is not attached to N-glycosidic side-chains of wall proteins.

[Indexed for MEDLINE]

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