Complex sentence: Ras2p is a "Saccharomyces cerevisiae" guanine nucleotide-binding protein, encoded by the RAS2 gene, which plays a role in growth regulation and starvation response.
Split into simpler sentences: Ras2p is a "Saccharomyces cerevisiae" guanine nucleotide-binding protein, encoded by the RAS2 gene. Ras2p plays a role in growth regulation and starvation response.