Chromatographic Separation, and Characteristics of Nucleic Acids from HeLa Cells
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چکیده
منابع مشابه
Chromatographic Separation, and Characteristics of Nucleic Acids from HeLa Cells
The application of the phenol-duponol method to extraction of nucleic acids from HeLa cells is described. Chromatography of the phenol extract on an esterified bovine serum albumin column with a salt gradient of sodium chloride gives separation of soluble RNA, DNA, and two different high molecular RNA fractions. Ultracentrifugation of the DNA eluted from the column gives a sedimentation coeffic...
متن کاملChromatographic Studies on Nucleic Acids
The nucleic acids are such universal constituents of biological systems and their function is probably so important that it is not surprising that much labour has been spent on the study of their composition. Until very recently there have been no methods of analysis which could be considered more than semiquantitative, and it now seems doubtful whether many published analyses are even approxim...
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گوشت قرمز یکی از مهم ترین فرآورده های دامی در تأمین پروتئین و انرژی می باشد که در حمل ویتامین های محلول در چربی نیز حائز اهمیت می باشد. انسان مانند سایر مهره داران اسید های چرب ضروری (لینولئیک و آلفا لینولنیک) مورد نیاز خود از طریق غذا تأمین می نماید. اسید های چرب ضروی پیش ساز اسید های چرب غیر اشباع با چند پیوند دوگانه هستند. اسید لینولنیک پیش ساز اسیدهای چرب امگا 3 و اسید لینولئیک نیز پیش ساز ...
Growth Characteristics of Poliovirus in Hela Cells: Nucleic Acid Metabolism
The RNA and DNA contents of the nucleus and cytoplasm of the HeLa cell were determined. The rates of incorporation of P(32) into the various nucleic acid fractions were established for the ordinary HeLa cell maintained under a set of standard conditions. The changes in the rates of incorporation of P(32) and in the amounts of RNA and DNA which occurred subsequent to infection with poliovirus we...
متن کاملChromatographic separation of mononucleotides derived from transfer ribonucleic acids.
1. A method is described for fractionating alkaline and enzymic hydrolysates of ribonucleic acids and oligonucleotides on DEAE-cellulose columns by using a constant-composition eluent. 2. The relative partition coefficients of the four major and several minor nucleotides present in nucleic acid digests are given. 3. The influence of pH and of molarity of the buffer on the separation is describe...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1961
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.44.5.899