Results 211 to 220 of about 210,210 (258)
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Mitochondrial Ribosomes in HeLa Cells
Nature New Biology, 1971HeLa cell mitochondria contain 60S ribosomes which seem to consist of subunits of 45S and 35S particles. The 16S and 12S RNA components are coded by mitochondrial DNA.
G, Attardi, D, Ojala
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Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1967
Abstract 1. 1. A simple procedure to obtain DNA-free RNA polymerase (nucleosidetriphosphate: RNA nucleotidyltransferase, EC 2.7.7.6) from HeLa cells was developed from the preparation of extracts in a hypotonic medium in a French pressure cell. 2. 2.
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Abstract 1. 1. A simple procedure to obtain DNA-free RNA polymerase (nucleosidetriphosphate: RNA nucleotidyltransferase, EC 2.7.7.6) from HeLa cells was developed from the preparation of extracts in a hypotonic medium in a French pressure cell. 2. 2.
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Chemical Toxicity on HeLa Cells
Current Medicinal Chemistry, 2006HeLa cells were named for Henrietta Lacks, who died in 1952 from an infection of a special type of cancer. Margaret Gey, her physician, started working with these cancer cells that are still used for medical research. In the present review, an attempt has been made to collect the data for the effects of different chemicals on HeLa cells and to discuss ...
Rajeshwar P, Verma, Corwin, Hansch
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Subribosomal particles of HeLa cells
Experimental Cell Research, 1974Abstract Well defined ring-shaped and rectangular particles are described as intracellular components of post-ribosomal cytosol of HeLa cells. Their morphology might be identical with particles recently isolated from plasma cell tumors and independently from the culture medium of malignant cells.
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Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects, 1964
Abstract An electron-microscope study of the HeLa-cell cytoplasmic and nuclear 74-S ribosomes has been performed. These behave similarly when cations are removed by versene: both break up into 30-S and 50-S subunits. In the heavy part of the centrifugation gradient used to isolate the ribosomes it has been shown that 74-S ribosomes are associated in ...
Winckelmans, Danièle +2 more
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Abstract An electron-microscope study of the HeLa-cell cytoplasmic and nuclear 74-S ribosomes has been performed. These behave similarly when cations are removed by versene: both break up into 30-S and 50-S subunits. In the heavy part of the centrifugation gradient used to isolate the ribosomes it has been shown that 74-S ribosomes are associated in ...
Winckelmans, Danièle +2 more
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Archiv f�r die gesamte Virusforschung, 1965
A strain of varicella virus was isolated and easily maintained in HeLa cells. The infection could be passed with live cells only, practically all infectivity being destroyed by disruption of the cells with sonication or repeated freeze-thawing, even if precautions were taken to favour the infectivity of nucleic acids.
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A strain of varicella virus was isolated and easily maintained in HeLa cells. The infection could be passed with live cells only, practically all infectivity being destroyed by disruption of the cells with sonication or repeated freeze-thawing, even if precautions were taken to favour the infectivity of nucleic acids.
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Investigating heterogeneity in HeLa cells
Nature Methods, 2019Multi-omic study uncovers biological variation across 14 HeLa cell samples, which might help to explain the growing concerns about reproducibility issues in cell culture.
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DNA replication sites in HeLa cells
Experimental Cell Research, 1973Abstract We previously reported experiments which led us to conclude that DNA synthesis in HeLa cells occurs in association with the nuclear membrane. Subsequent experiments which are reported here provide evidence that DNA synthesis occurs both in proximity to and at sites removed from the nuclear membrane.
R L, O'Brien, A B, Sanyal, R H, Stanton
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Chromosomal proteins of interphase HeLa cells
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1970Abstract 1. 1. We describe the properties of the proteins of isolated interphase chromosomes of HeLa cells. Histones of interphase chromosomes were fractionated by chromatography on Amberlite CG-50 and further characterized by analytical disc electrophoresis and amino acid analysis of each chromatographic fraction. 2. 2.
A, Sadgopal, J, Bonner
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Induced thermal resistance in HeLa cells
Nature, 1975IN mammalian cells, hyperthermia causes temperature-dependent changes in cell growth parameters1, reduces DNA and protein synthesis rates2 and cell metabolism3, and leads to a loss of proliferative capacity4,5. Harris6 has shown that temperature-resistant pig kidney cells can be obtained after multiple exposures to very high thermal doses (colony ...
E W, Gerner, M J, Schneider
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