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1. Run the gel as normal. Often for genomic southerns it is desirable to run long gels (18cm) over 4-6hrs. 2. Photograph the gel with a rul

【原理】 Southern杂交是分子生物学的经典实验方法。其基本原理是将待检测的DNA样品固定在固相载体上,与标记的核酸探针进行杂交,在与探针有同源序列的固相DNA的位置上显示出杂交信号。通过Southern杂交可以判断被检测的DNA样品中是否有与探针同源的片段以及该片段的长度

实验原理: Southern印迹是将DNA片断从电泳凝胶上直接转移至膜支持物（如硝酸纤维素膜、尼龙膜）上，使DNA片断固定的技术。先将DNA经限制性内切酶消化成一系列片段，进行琼脂糖凝胶电泳，各片段因分子量不同而彼此分开，然后经碱处理凝胶，使DNA的片段被变性、中和并通过毛细作

1. Run the gel as normal. Often for genomic southerns it is desirable to run long gels (18cm) over 4-6hrs. 2. Photograph the gel with a rul

用于检测重组DNA，也可分析DNA样品中是否有与探针序列同源的DNA片段。用于基因诊断，也可验证检测片段的分子量大小。将基因组DNA经限制性内切酶酶切，进行琼脂糖电泳，把分离后定位在凝胶上的不同分子量的DNA经碱变性处理，将凝胶中变性的DNA转移至一固相支持滤膜。利用标记的某一D

Digest DNA in 96-well plate To each well add: 4ul 10Xbuffer 4ul Enzyme 0.4ul Spermidine(0.4M) 31.6ul H2O 37‡C 19h, then add 4ul loadin

blotting 1. Run gel to desired distance. 2. Visualize gel on UV box. Note the marker bands by: a) using a fluorsecent ruler and photograp

1）基因组DNA Southern印迹的制备 预备 1．用适当的限制性内切酶消化基因组DNA样品（10μg）。 2．进行琼脂糖凝胶电泳。一般用0.7～1.0％的琼脂糖凝胶分离基因组DNA，它在1～15kb的范围内有较好的分辨率，可选用TBE或TAE缓冲液。琼脂糖凝胶电泳需在

Two protocols are given here. The first one is used for BAC library screening on filters , although is also suitable for Transfer hybridiza

Author: Suzanne Gerttula Date: March 14,1994 Digest between 1 and 10 ug Genomic DNA. I digest at 37 C for about six hours over the course