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

Role of a ras homolog in the life cycle of Schizosaccharomyces pombe.

We have analyzed the function of the only ras homolog in S. pombe detectable by Southern blotting, ras1, which is homologous to mammalian ras genes and has been cloned. We have disrupted the ras1 gene and have replaced it with ras1Val17, which corresponds to a transforming variant of mammalian ras. Loss of ras1 activity by disruption results in the complete inability to mate. The cell body of a ras1- strain is extensively deformed, and a ras1-/ras1- diploid sporulates very poorly. Unlike RAS1 and RAS2 of S. cerevisiae, ras1 of S. pombe appears to have no effect on adenylate cyclase activity. This suggests that the target enzymes presumably modulated by ras proteins in signal transduction are not the same for all organisms.[1]


  1. Role of a ras homolog in the life cycle of Schizosaccharomyces pombe. Fukui, Y., Kozasa, T., Kaziro, Y., Takeda, T., Yamamoto, M. Cell (1986) [Pubmed]
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