This entry includes subunits of the mitochondrial ribosome including 28S ribosomal protein S25 (MRPS25) from mammals, 54S ribosomal protein Mrp49 from the yeasts Saccharomyces cerevisiae and Schizosaccharomyces pombe. MRPS25 is a component of the mitochondrial small ribosomal subunit []. Mrp49 is a component of the mitochondrial large ribosomal subunit [].