Summary
RNA extraction from mammalian tissue has been compared using the different deproteinizing agents: a) guanidine-HCl, b) guanidinium-thiocyanate, c) buffer-saturated phenol, or d) buffer-saturated phenol followed by a proteinase K digestion of the aqueous phase. Both solid tissues (first, second, and third trimester fetal bovine pancreas), and human white blood cell populations were studied. Degradation, as seen in citric acid-urea agarose gels, and the ability to serve as templates for cell-free protein synthesis were used as criteria to assess the efficiency of the different methods.
We conclude that employing buffer-saturated phenol with proteinase K digestion is a superior method for consistent extraction of relatively undegraded RNA in quantitative amounts from mammalian tissue.
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Frazier, M.L., Mars, W., Florine, D.L. et al. Efficient extraction of RNA from mammalian tissue. Mol Cell Biochem 56, 113–122 (1983). https://doi.org/10.1007/BF00227211
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DOI: https://doi.org/10.1007/BF00227211