title: [Ribonucleases of rat liver nuclear membranes].
abstract: A comparative study of ribonuclease activity of isolated rat liver nuclei, nuclear membranes with buoyant density rho 1,19 and rho 1,22 and pH 8 nuclear membrane extract showed high nuclear membranes activity with different affinity to RNA and synthetic polyribonucleotides. Chromatographic analysis of poly-U degradation products demonstrates that the nuclear membrane extract contains at least two ribonucleases: a 3'-endonuclease and a 5'-endonuclease.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000201:enzymology*; D004720:Endonucleases / Q000378:metabolism; D008099:Liver / Q000201:enzymology*; D008566:Membranes / Q000201:enzymology; D011072:Poly U / Q000378:metabolism; D011131:Polyribonucleotides / Q000378:metabolism; D051381:Rats; D012260:Ribonucleases / Q000378:metabolism*
chemical_list: D011131:Polyribonucleotides; D011072:Poly U; D004720:Endonucleases; D012260:Ribonucleases
vernacular_title: Ribonukleazy Iadernykh Membran Kletok Pecheni Krys