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  • Title: Conservation and variation of ribosomal proteins in several species of the cellular slime molds Dictyostelium and Polysphondylium.
    Author: Ramagopal S, Ennis HL.
    Journal: Biochim Biophys Acta; 1984 Nov 13; 805(3):300-5. PubMed ID: 6541507.
    Abstract:
    Genus- and species-specific composition of ribosomal proteins was investigated in four species of the genus Dictyostelium (D. discoideum, D. purpureum, D. murcoroides and D. giganteum) and two species of the genus Polysphondylium (P. pallidum and P. violaceum). Ribosomal proteins were resolved by a high-resolution, two-dimensional gel method. In general, the numbers and distributions for the majority of ribosomal proteins were similar within the species of each genus, although some differences were detected. More differences were observed between Dictyostelium and Polysphondylium than among the individual species within each genus. Stage-specific ribosomal proteins previously demonstrated in D. discoideum were found to be developmentally regulated in other Dictyostelium species, and in both Polysphondylium species. The study shows that ribosomal proteins may be a potentially useful new biochemical parameter for the molecular taxonomy of the cellular slime molds.
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