Isolation of microvilli from mammalian cells
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چکیده
منابع مشابه
Isolation of histones and nucleosome cores from mammalian cells.
In vitro analysis of DNA in chromatin is often important for understanding mechanisms of regulation of transcription and other processes that occur on DNA. The basic unit of chromatin is the nucleosome core, containing two copies each of the core histones H2A, H2B, H3, and H4 to form a histone octamer that wraps 145 base pairs of DNA in a left-handed superhelix. In vivo, chromatin is associated...
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1. DNA has been isolated from different mammalian tissues. The DNA preparations were free from RNA, protein and polysaccharides and have a similar range of sedimentation coefficients (approx. 24s). 2. Protein was removed by a two-stage extraction with a phenol-cresol mixture by using a detergent with 4-aminosalicylate in the first stage and sodium chloride in the second. 3. Polysaccharides rema...
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Microfilaments were isolated from cultured mammalian cells, utilizing procedures similar to those for isolation of "native" thin filaments from muscle. Isolated microfilaments from rat embryo, baby hamster kidney (BHK- 21), and Swiss mouse 3T3 cells appeared structurally similar to muscle thin filaments, exhibiting long, 6 nm Diam profiles with a beaded, helical substructure. An arrowhead patte...
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Mammalian cell nuclei contain three RNA polymerases (RNAP I, RNAP II and RNAP III), which transcribe different gene subsets, and whose active forms are contained in supramolecular complexes known as 'transcription factories.' These complexes are difficult to isolate because they are embedded in the 3D structure of the nucleus. Factories exchange components with the soluble nucleoplasmic pool ov...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1978
ISSN: 0014-5793
DOI: 10.1016/0014-5793(78)80490-6