title: Preferential synthesis of a membrane-associated protein by free polyribosomes.
abstract: Isolated free polyribosomes from rat liver appear to synthesize NADPH-cytochome c reductase in vitro four times as efficiently as do membrane-bound polyribosomes. The observed synthesis by the latter could result from contamination with free polyribosomes, but an alternative explanation is also suggested.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D002250:Carbon Radioisotopes; D003579:Cytochrome Reductases / Q000096:biosynthesis*; D004586:Electrophoresis; D008297:Male; D008566:Membranes / Q000378:metabolism; D008862:Microsomes, Liver / Q000201:enzymology; D011132:Polyribosomes / Q000201:enzymology*; D051381:Rats; D014461:Ultracentrifugation
chemical_list: D000596:Amino Acids; D002250:Carbon Radioisotopes; D003579:Cytochrome Reductases