title: [Investigation of ribosomal RNAs from liver mitochondria of albino rats].
abstract: Study of sedimentation coefficients of rat liver mt-rRNAs labelled in vivo under conditions of selective inhibition by actinomycin D of nuclear RNAs biosynthesis, in hypoosmic system of isolated mitochondria, and of mt-rRNAs isolated from purified 55 ribosomes revealed that mt-rRNAs are represented by 16S and 12S components. Both components are found to be of AU-type. Anomalous behaviour of mtRNA on MAK columns is observed. Some aspects of isolation and identification of mt-rRNAs in higher organisms are discussed.
mesh_terms: D000818:Animals; D003609:Dactinomycin / Q000494:pharmacology; D008930:Mitochondria, Liver / Q000187:drug effects / Q000378:metabolism*; D012335:RNA, Ribosomal / Q000032:analysis / Q000378:metabolism; D051381:Rats; D012265:Ribonucleotides / Q000032:analysis; D014461:Ultracentrifugation
chemical_list: D012335:RNA, Ribosomal; D012265:Ribonucleotides; D003609:Dactinomycin
vernacular_title: Issledovanie ribosomnykh RNK mitokhondriĭ pecheni belykh krys