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Your search keyword '"Soeiro R"' showing total 9 results
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9 results on '"Soeiro R"'

1. The effects of methionine deprivation on ribosome synthesis in HeLa cells.

Author

Vaughan MH Jr, Soeiro R, Warner JR, and Darnell JE Jr

Subjects
Adenine metabolism, Carbon Isotopes, Cellulose, Chromatography, Ion Exchange, DNA, Neoplasm analysis, HeLa Cells cytology, In Vitro Techniques, Methylation, Tritium, Uridine metabolism, Valine metabolism, HeLa Cells metabolism, Methionine metabolism, RNA, Neoplasm biosynthesis, Ribosomes metabolism
Published
1967
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2. Turnover of nuclear RNA in HeLa cells: evidence for a single ribonucleotide pool.

Author

Wu RS and Soeiro R

Subjects
Carbon Isotopes, Centrifugation, Density Gradient, Centrifugation, Zonal, Glutamine metabolism, Nucleosides metabolism, Nucleotides analysis, Pyrimidines biosynthesis, RNA analysis, RNA isolation & purification, RNA, Ribosomal analysis, Ribonucleotides, Tritium, Uridine metabolism, HeLa Cells metabolism, Nucleotides metabolism, RNA, Neoplasm metabolism
Published
1971
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3. Cytoplasmic and nuclear pyrimidine ribonucleotide pools in HeLa cells.

Author

Soeiro R and Ehrenfeld E

Subjects
Cell Fractionation, Centrifugation, Density Gradient, Chromatography, Ion Exchange, Cytosine Nucleotides analysis, Cytosol metabolism, Dactinomycin pharmacology, Electrophoresis, Paper, HeLa Cells pathology, Humans, Isotope Labeling, Poliovirus metabolism, RNA analysis, RNA biosynthesis, RNA, Viral biosynthesis, Spectrophotometry, Ultraviolet, Time Factors, Tritium, Uracil Nucleotides analysis, Uridine, Cell Nucleus metabolism, Cytosine Nucleotides metabolism, HeLa Cells metabolism, Uracil Nucleotides metabolism
Published
1973
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4. Nascent ribosomes from HeLa cells.

Author

Warner JR and Soeiro R

Subjects
Carbon Isotopes, Centrifugation, Density Gradient, Electrophoresis, HeLa Cells metabolism, In Vitro Techniques, Leucine metabolism, Neoplasm Proteins biosynthesis, Nucleoproteins biosynthesis, Uridine metabolism, Cell Nucleolus analysis, HeLa Cells cytology, Neoplasm Proteins analysis, Nucleoproteins analysis, RNA, Neoplasm analysis, Ribosomes analysis
Published
1967
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5. A comparison between heterogeneous nuclear RNA and polysomal messenger RNA in HeLa cells by RNA-DNA hybridization.

Author

Soeiro R and Darnell JE

Subjects
Centrifugation, Density Gradient, History, 19th Century, Methods, Time Factors, Tritium, Cell Nucleus analysis, DNA, Neoplasm, HeLa Cells cytology, Hybridization, Genetic, RNA, Messenger analysis, RNA, Neoplasm analysis
Abstract

Heterogeneous nuclear RNA (HnRNA) and mRNA from cytoplasmic polyribosomes of HeLa cells have been compared by RNA-DNA hybridization tests. 1 microg of HeLa cell DNA binds 0.05-0.10 microg of either HnRNA or mRNA. In addition, HeLa DNA that is preexposed to unlabeled HnRNA was found to have a reduced capacity to bind either HnRNA or mRNA. The results are compatible with considerable sequence similarity in the two types of RNA but, as is discussed, firm conclusions are precluded by imperfections of the hybridization reaction as presently employed.

Published
1970
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6. The turnover of nuclear DNA-like RNA in HeLa cells.

Author

Soeiro R, Vaughan MH, Warner JR, and Darnell JE Jr

Subjects
Carbon Isotopes, Humans, Phosphorus Isotopes, RNA, Neoplasm biosynthesis, Uridine metabolism, Cell Nucleus metabolism, DNA, Neoplasm metabolism, HeLa Cells metabolism, RNA, Neoplasm metabolism
Abstract

The subcellular distribution of various types of RNA in HeLa cells is described. In addition, the relative rate of synthesis of the major classes of nuclear RNA has been determined. From these experiments it can be deduced that the heterogeneous nuclear RNA fraction is rapidly synthesized and degraded within the cell nucleus.

Published
1968
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