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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Cooperative functions of the mannoprotein-encoding genes in the biogenesis and maintenance of the cell wall in Saccharomyces cerevisiae.

To elucidate the roles of genes involved in the cell wall biogenesis and function in Saccharomyces cerevisiae, we isolated and characterized mutants that were lethal in a strain in which the SED1 gene encoding a cell wall mannoprotein was disrupted. Thus, double mutants of SED1 and either MNN9 or MNN10 were unable to grow and YOL155c on a multicopy plasmid could suppress their synthetic lethality. A Yol155cp-GFP fusion protein was found to localize to the cell wall, suggesting that it might also be a cell wall mannoprotein. Subsequently, we analysed the effects of the shut-off of SED1 in a sed1 and mnn9 double mutant: cells after the shut-off showed anomalous cellular morphology and died in the mitotic M phase. From these and other results, we postulate that these genes function cooperatively with each other and in a cell cycle-dependent manner in the biogenesis and maintenance of cell wall in S. cerevisiae.[1]


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