Identification of ceruloplasmin messenger RNA sequences in heterogeneous nuclear RNA from rat liver

The distribution of the sequences of ceruloplasmin mRNA in different fractions of heterogeneous nuclear RNA from rat liver was studied using cDNA transcripts of highly purified mRNA as hybridization probe. The content of ceruloplasmin mRNA sequences in poly(A)-containing and poly(A)-free subfraction...

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Bibliographic Details
Published in:Molecular biology reports 1981-01, Vol.8 (1), p.57-62
Main Authors: Gaitskhoki, V S, L'vov, V M, Schwartzman, A L, Skobeleva, N A, Frolova, L J, Neifakh, S A
Format: Article
Language:English
Subjects:
Animals
Base Sequence
Ceruloplasmin - biosynthesis
Chemical Phenomena
Chemistry
DNA, Circular
Liver - analysis
Molecular Weight
Nucleic Acid Hybridization
Polyribosomes - analysis
Rats
RNA, Heterogeneous Nuclear - genetics
RNA, Messenger - genetics
Transcription, Genetic
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Summary:The distribution of the sequences of ceruloplasmin mRNA in different fractions of heterogeneous nuclear RNA from rat liver was studied using cDNA transcripts of highly purified mRNA as hybridization probe. The content of ceruloplasmin mRNA sequences in poly(A)-containing and poly(A)-free subfractions of heterogeneous nuclear RNA is respectively 1 and 27 molecules per a hepatocyte. Heterogeneous nuclear RNA carrying the sequences of ceruloplasmin mRNA sedimented in sucrose gradients containing formamide, as a broad zone around the 56S peak. Denaturing electrophoresis followed by the transfer of RNA onto diabenzyloxymethyl paper and hybridization with [32P]-cDNA revealed multiple high molecular weight fractions of ceruloplasmin pre = mRNA (9.0, 6.6, 2.2 and 1.6 megadaltons) in the non-adenylated fraction of nuclear RNA and a single 1.1-1.2 megadalton zone in poly(A)-containing nuclear RNA, the latter being equal in size to the mature ceruloplasmin mRNA from liver polysomes.
ISSN:0301-4851
1573-4978
DOI:10.1007/BF00798386