title: Cell-free translation of murine coronavirus RNA.
abstract: The coding assignments of the intracellular murine hepatitis virus-specific subgenomic RNA species and murine hepatitis virion RNA have been investigated by cell-free translation. The six murine hepatitis virus-specific subgenomic RNAs were partially purified by agarose gel electrophoresis and translated in an mRNA-dependent rabbit reticulocyte lysate, and the cell-free translation products were characterized by gel electrophoresis, immunoprecipitation, and tryptic peptide mapping. These studies have shown that RNA 7 codes for the nucleocapsid protein, RNA 6 codes for the E1 protein, RNA 3 codes for the E2 protein, and RNA 2 codes for a 35,000-dalton nonstructural protein. Genomic RNA directs the cell-free synthesis of three structurally related polypeptides of greater than 200,000 in molecular weight.
mesh_terms: D000818:Animals; D002474:Cell-Free System; D004591:Electrophoresis, Polyacrylamide Gel; D005814:Genes, Viral; D007158:Immunologic Techniques; D051379:Mice; D006517:Murine hepatitis virus / Q000235:genetics*; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000378:metabolism*; D012367:RNA, Viral / Q000378:metabolism*; D014357:Trypsin; D014764:Viral Proteins / Q000096:biosynthesis / Q000235:genetics
chemical_list: D012333:RNA, Messenger; D012367:RNA, Viral; D014764:Viral Proteins; D014357:Trypsin