Quantitation of pyrimidine dimer contents of nonradioactive deoxyribonucleic acid by electrophoresis in alkaline agarose gels.

Quantitation of pyrimidine dimer contents of nonradioactive deoxyribonucleic acid by electrophoresis in alkaline agarose gels.
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通过碱性琼脂糖凝胶电泳定量非放射性脱氧核糖核酸的嘧啶二聚体含量。

DOI:
10.1021/bi00273a006
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发表时间:
1983
期刊:
影响因子:
2.9
通讯作者:
Shih,AG
Shih,AG
中科院分区:
生物学3区
文献类型:
--
作者:
Sutherland,BM;Shih,AG

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Materials and MethodsBacteriophage. T7 bacteriophage were obtained from F. W. Studier, Brookhaven National Laboratory, and grown on Escherichia coli AB2500. Viable virus titer was determined by plating a dilution of phage and 0.2 mL of E. coli in 2 mL of soft agar (10 g of Bactotryptone, 5 g of NaCl, and 7 g of Bacto Agar per L) over a hard agar base (10 g of tryptone, 5 g of NaCl, and 10 g of Bacto Agar per L). Plates were incubated overnight at room temperature. Irradiation. Purified phage were diluted to 3.2 X 1010/mL in 50 mM tris (hydroxymethyl) aminomethane (Tris), pH 8, and 200 mM NaCl. Two-milliliter samples were exposed with constant stirring to monochromaticradiation from a Johns’ monochromator (Johns & Rauth, 1965); incident light was monitored with a silicon photodiode. Incident intensities (in photons per second) for the various wavelengths (in nanom-eters) were the following: 248, 1.29 X 1014; 265, 1.89 X 1014; 280, 1.84 X 1014; 289, 4.48 X 1014; 297, 1.76 X 1015; 313, 2.44 X 1016. Irradiations and intensity measurements at 313 nm were of light filtered through a thin Mylar filter to exclude shorter wavelengths.
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影响因子: --
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